from:"William Oliver"

Re: I have defeated Wayland!

2022-01-03 Thread William Oliver

On Mon, 2022-01-03 at 14:43 -0500, Tom Horsley wrote:
> https://tomhorsley.com/hardware/mouse-tailor/mouse-tailor.html
> 
> My latest silly project adds all the mouse settings to microcode
> outside of the operating system so my trackball can be useful
> when I'm forced to use Wayland (which seems to have utterly discarded
> any useful mouse settings once available under X11).


That's actually very cool.

billo
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Re: Application-specific networking

2020-11-18 Thread William Oliver

On Wed, 2020-11-18 at 11:51 +0100, Roberto Ragusa wrote:
> [snip]
> Very good idea, namespaces are a very powerful tool that many people
> ignore.
> 
> I sometimes want to run a program without allowing any network
> access,
> my approach is:
> 
> unshare -n /bin/bash
> 
> this will give you a shell where everything can be run, but ifconfig
> -a will
> show you that there is no network interfaces (localhost is missing
> too).
> 
> In your case you should play with the VPN in the secondary namespace,
> where you have to arrange a way to have some way traffic out, so that
> the VPN can work.
> The idea of letting podman do all the setup and then "borrow" the
> namespace
> for something out of the container is very smart.
> 
> ("container" is a meaningless word; the kernel only knows about
> namespaces,
> you can use or not each of them, in your case network is all you
> need...)
> 
> Best regards.
> 
> -- 
> Roberto Ragusamail at robertoragusa.it
> 



I'd like to say thanks to everybody who responded.  I don't know much
about containers, so I'll have to do some self-educating to see if
these are good solutions -- but they certainly look like a good place
to dig around in.  I appreciate the help.  If I get a solution, I'll
check back in and let folk know how it turned out.

billo
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Application-specific networking

2020-11-17 Thread William Oliver

This isn't a fedora-specific question, but I don't know where to ask.

If there's a fedora-specific  answer, thanks, and if not, I'd
appreciate a pointer to the apprpropriate forum.

I normally use a VPN that routes through another country.  This works
fine.  However, a site I often use recently changed its security
policies and now will only allow connection from networks that claim to
be based in the US.  So, in order to connect, I either have to turn off
my VPN or rout it through a US proxy or just my ISP -- which I can do,
but I resent it a little.

So, I was thinking about adding another network card.  I'd have one
attached to my VPN and another attached just to the ISP.  I'd like for
some applications to use one card and other applications to use
another, e.g. my browser to use the ISP-attached card and my email
client to use the VPN-attached card.

I've set up machines as bridges and gateways before, and I can
configure moving traffic between two cards, but I've never tried to
have different applications use different cards.

Is this doable?  Does anybody know where to look for info?

Thanks!

billo
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Re: X Org Server is abandonware

2020-10-27 Thread William Oliver

On Tue, 2020-10-27 at 10:58 -0400, Jonathan Billings wrote:
> 
> snip.
> 
> X11 is *old* and there is a lot of complexity involved, particularly
> when it comes to compositing libraries. Wayland takes the X server
> out
> of the conversation, which can improve security and efficiency, and
> also makes implimentation simpler.
> 
> -- 
> Jonathan Billings 
> 

Heh.  I'm showing my age here, but when I was a student in medical
school back in the days of mainframes, I was asked to write a database
program to keep track of the medical school curriculum.  Basically, it
looked at what professor in what course was lecturing on what subject
to see what overlaps there were (e.g. both Physiology profs and
Endocrine profs lecturing on diabetes).

So, I wrote this thing in the only language available to me at the time
-- FORTRAN, and we ran it on a Sigma machine.

I maintained it for a couple of years, but graduated from medical
school and went on to my residency.  About six years later, I got a
call from some students at my old medical school saying they had been
tasked with setting up a similar program, and had a copy of my source
code -- though of course there were no Sigmas around.  They said that
they weren't all that familiar with FORTRAN, but were given this as an
examplar.

I laughed and told them the last thing they wanted to do was to try to
decode and refactor a zillion lines of FORTRAN when they didn't know
the language well to start with.  Besides, there were a bunch of
newfangled database programs they could buy for much less money than
trying to refactor what I did -- by this time there was dBase, FoxPro,
etc.  With all these new database programs, they could set up their
system in a couple of hours and be running on a PC for a tenth of the
cost and a hundredth of the effort.

Sometimes it's not always the best idea to keep refactoring old
stuff...

billo
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Re: vinagre

2020-09-09 Thread William Oliver

On Wed, 2020-09-09 at 22:15 +0200, antonio montagnani wrote:
> I can connect from my Fedora laptop to my 2 Rasperry's with no
> issues, 
> they can connect each other with vinagre and vnc, but I cannot
> connect 
> from either Raspberry to my Fedora laptop with vinagre, as soon as I 
> give permission to connect, connection is closed. Any idea??? no 
> difference if firewall is active or disactivated
> -- 
> Antonio Montagnani
> Linux Fedora 32 (Workstation)
> 
> sudo su
> 
> 

Funny you should mention that.  I just installed vinagre on my box this
morning.  The server is a CentOS 7 box, my client is Fedora 32.

I had the following problems:

1) Initially, it seemed to be set up to connect using ssh rather than
vnc.  I had assumed vnc by default.  RTFM, and all that.

2) I ran it with the wrong port.  I happened to get the display number
right, through no fault of my own.

3) When I set up the server, it didn't have a user defined.  It
*seemed* like the service started fine, but it kept crashing. When I
started the service and looked at the error message, "user 
doesn't exist"

So, I put this in /etc/rc.local
su -c "vncserver -depth 32 geometry 1024x768" 

4) At least then, a window came up, but it was not interactive. It
didn't crash, but I got a blank screen without the ability to type or
use the mouse.  Turned out that my server didn't have a graphical
interface installed. I installed KDE on the server, and had it come up
with a default graphic interface.

Then it worked.

So, after making about all the possible mistakes that one can make
installing this thing, it finally worked. 

billo

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Re: Any subs for Libreoffice?

2020-08-12 Thread William Oliver

On Wed, 2020-08-12 at 14:39 -0400, Temlakos wrote:
> Then if no one you know uses LaTeX anymore, how does one render
> mathematical equations other than by drawing the image of math and
> embedding such images directly?
> 
> Temlakos
> 
> 

I sort of changed careers.  I'm trained in medicine as a forensic
pathologist and in computer science.  Early in my career, I wrote
visualization algorithms for 3D reconstruction of confocal microscopy
images, ran a military scientific computer network, and did image
analysis/image processing of images of forensic interest for the
federal government.   When I left the miltary, I transitioned into
doing more conventional medicolegal death investigation and autopsy
pathology. So, mostly I do death investigation now.  Most of my later
research had to do with the latter, and didn't require formatting
equations.  And now, I'm 16 months from retirement -- but who's
counting?

billo
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Re: Any subs for Libreoffice?

2020-08-12 Thread William Oliver

Wow.  I didn't know people still used TeX/LaTeX a lot any more.  I
remember having to use it all the time for stuff I wrote when in
graduate school in the 1980s, but I thought it had pretty much fallen
out of favor except for die-hard users.  I haven't used it in years. 
But what do I know.  I still remember (and pine for) the keystroke
commands for WordStar.

From reading this discussion, it seems that the primary complaints
against LibreOffice are larger scale layout issues.  I may have missed
it, and if someone has mentioned it earlier, I apologize. What about
just importing into a publishing/layout program like Scribus?  It seems
that this would make it trivial to do various orientations, etc.  Of
course, just as word processing programs are not the best desktop
publshing systems, the desktop publishing apps tend to make poor word
processors...

Another possibility might be to import the odt file into Libreoffice
Draw and use that for layout changes.

billo



On Wed, 2020-08-12 at 08:44 -0300, George N. White III wrote:
> On Wed, 12 Aug 2020 at 02:12, Tim via users <
> users@lists.fedoraproject.org>
> wrote:
> 
> > On Tue, 2020-08-11 at 15:39 -0700, ToddAndMargo via users wrote:
> > > So I put him on LO.  He is writing up a book or something.
> > 
> > A word processor, any word processor, is not a particularly good
> > choice
> > for writing a book.  They've long since gone from being a "word
> > processor" to being a secretary's all-purpose convoluted typing
> > tool.
> > 
> > They're not particularly conducive to writing paragraphs and pages
> > as
> > just paragraphs and pages, often horrible at very long documents,
> > and
> > not really good for doing page layout.  Probably not a very useful
> > format if you were going to take a book to a printing house,
> > either.
> > 
> 
> Many print shops want standards compliant PDF's, some will accept
> Word.  My wife once needed a fanfold handout, so I created a PDF
> using LaTeX.   The printer remarked that it had been years since he
> had seen formatting of comparable quality.   Now Word has a
> TeX engine.
> 
> 
> > Latex is the usual suggestion for real authors, but will be even
> > more
> > of a bastard to use if you're not into that kind of thing.
> > 
> 
> LaTeX doesn't have to be difficult if you are working with an
> academic
> publisher that supports it.   Many of the people who found it
> difficult
> were following bad advice that is all too easy to find on the
> internet.
> 
> LaTeX is designed to allow authors to focus on the logical structure
> of a document.   Details of formatting are handled by a "document
> class", and scientific publishers usually provide a document class
> that conforms to the style of a particular book series.   Authors
> need to learn some LaTeX markup commands, usually by
> imitating a sample document from the publisher or a colleague's
> previous published LaTeX file.At my former work dozens of
> students and postdocs who had been using Word were able to
> switch to LaTeX with minimal effort.   There are sometimes
> glitches that need help from an experienced user.  In academia
> such help is readily available, but there are also many online
> sources of help.   Unfortunately, the internet also has many
> sites offering really bad advice for LaTeX users.
> 
> Many non-science publishers contract out the final tweaking/editing
> and rarely contractors who use anything other than Word.
> 
> It is worth noting that LaTeX originated on systems with ASCII
> character sets.  There has been a big effort to support Unicode
> fonts, including work by a consortium of academic publishers and
> societies to develop high quality free Unicode fonts (STIX2) with
> comprehensive coverage of scientific symbols.  Microsoft developed
> Cambria Math.  These efforts also led to a new "TeX engine", LuaTeX,
> so those who need Unicode support are well advised to use LuaLaTeX.
> For linux, LuaLaTeX is provided by TeX Live, which is packaged by
> linux distros and also available from the TeX User Group (tug.org).
> 
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Re: [Solved for blender] Re: How to turn of Intel VGA controller?

2020-05-03 Thread William Oliver

On Sun, 2020-05-03 at 07:58 +0800, Ed Greshko wrote:
> On 2020-05-03 07:54, Ed Greshko wrote:
> > I suppose, for testing, I'll download from the blender site and try
> > it?
> 
> Well, I just download the tar file, extracted and ran.
> 
> And, it detected my GPU just fine.
> 
> GeForce GTX 660 (Display)
> 
> So, it would seem the disable CUDA was intentional on Fedora
> Project's part.
> 
> 

Well, I just rendered a scene or two and turning the GPU on didn't
really speed up rendering subjectively (though I haven't done a real
timing yet). It may be broken.  I'd been reading about these huge
speedups with the NVIDIA GPU, and I was excited to see if it was true
when I got my new laptop.  It was disappointing.  But I'll switch over
to the Blender groups for followup for that.

billo

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Re: [Solved for blender] Re: How to turn of Intel VGA controller?

2020-05-02 Thread William Oliver

On Sun, 2020-05-03 at 06:58 +0800, Ed Greshko wrote:
> 
> Do you know if nouveau supports cuda?  I seem to recall that it
> doesn't
> Maybe cuda support is disabled by in the Fedora package for that
> reason?
> 
> 
> 

That shouldn't be an issue.  By default, GPU use is turned off. You
have to go to Preferences and turn it on, and you have a number of
options (None,CUDA, OptiX, OpenCL).  

Blender 2.82 (the one in Fedora) was released in Feb, 2.82a was only
released in mid-March, and 2.83 is coming out soon -- the beta was
released yesterday.  Version 2.9 is in alpha for June.  I've never been
a maintainer, but life is short, and for these packages that have new
incremental versions coming out all the time it would be a pain. If I
were a maintainer, I'd consider waiting until 2.83.  It's easy to
download the binary...

billo
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[Solved for blender] Re: How to turn of Intel VGA controller?

2020-05-02 Thread William Oliver

On Sat, 2020-05-02 at 17:22 -0400, William Oliver wrote:
> 
> I was afraid of that.  I guess I'll reinstall my Windows image and
> see
> if I can set it from there.
> 
> billo
> 

In case anybody cares, this is a blender issue not a Fedora or HP
issue.  The version of blender you get from dnf/yum install does not
recognize the GPU.  The version (2.82a) you can download directly from
the blender community does.  I don't know if it's a version issue or if
the canned package isn't compiled with CUDA support.  In any case the
2.82a I downloaded directly untars with a binary the recognizes the
GeForce M250 card.

As an aside, removing the NVIDIA site drivers and reinstalling the
rpmfusion NVIDIA drivers is not hard.  If you rerun the .bin file from
NVIDIA with the option --uninstall, it uninstalls cleanly, and then the
rpmfusion NVIDIA driver installs again without a hitch (and the nvidia-
settings works again).

I don't have to reinstall Windows (yayy!)

billo
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Re: How to turn of Intel VGA controller?

2020-05-02 Thread William Oliver

On Sat, 2020-05-02 at 14:15 -0700, Samuel Sieb wrote:
> 
> 
> As I mentioned in the other thread, if you disable the Intel driver
> and 
> you don't have a hardware mux, you're going to fallback to a very
> slow 
> framebuffer for graphics.
> ___
> 

I was afraid of that.  I guess I'll reinstall my Windows image and see
if I can set it from there.

billo
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Re: How to turn of Intel VGA controller?

2020-05-02 Thread William Oliver

On Sat, 2020-05-02 at 13:00 -0700, Samuel Sieb wrote:
> 
> Depending on how the hardware is setup, you might not be able to
> disable 
> the Intel one.  (See the other very long thread here that has been 
> discussing that same issue for an AMD setup.)  Do you have a right-
> click 
> option to run applications on the other GPU?

Sigh.  I was afraid of that.  Yeah, I read part of that thread (I had
inadvertently deleted the earlier part of it).  I went on the HP site,
and apparently there's some HP tool on Windows (at least for AMD cards)
that you can use -- but of course I've wiped Windows from my box.

I imaged the original disk, so I suppose I can put the Windows image
back on and see if I can do it that way, but that's going to eat up a
day doing backups and swapping disk images and stuff.


> 
> > First, of course, graphics seems to work in general. Blender runs
> > fine, 
> > but (for those of you who might use blender), when using the
> > Cycles 
> > renderer, I can only render using the CPU.
> > $lsmod | grep nvidia
> > nvidia_drm 53248  0
> > nvidia_modeset   1118208  1 nvidia_drm
> > nvidia  20504576  4 nvidia_modeset
> > ipmi_msghandler   118784  1 nvidia
> > drm_kms_helper237568  2 nvidia_drm,i915
> > drm   598016  13 drm_kms_helper,nvidia_drm,i915
> The driver is loaded.
> 
> > The following is a little odd. This used to load, but while
> > floundering 
> > about, I removed and reinstalled the Nvidia driver from NVIDIA. Now
> > it 
> > won't load:
> > 
> > $ nvidia-settings
> > 
> > ERROR: Unable to load info from any available system
> 
> This is a problem.  If the settings app can't find the card, then
> CUDA 
> likely won't be able to either.  You probably have to fully clean
> out 
> all the NVidia stuff and reinstall it properly.

Bummer.  



> 
> > I assume the tainting stuff below is because I'm using the driver 
> > downloaded from NVIDIA.
> 
> Yes.
> You downloaded it from NVidia instead of using the rpmfusion
> packages? 
> Cleaning it up will be extra fun then...


Yeah.  I'll probably just do a clean reinstall of F 31.  The problem
was that the rpmfusion packages started giving me errors loading the
nvidia modules into the kernel when I did an update and upgraded the
kernel.  So I removed the rpmfusion packages and downloaded the NVIDIA
package. Those modules loaded, but things are screwed up now.






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Re: How to turn of Intel VGA controller?

2020-05-02 Thread William Oliver

On Sat, 2020-05-02 at 17:48 -0300, George N. White III wrote:On Sat, 2
May 2020 at 15:08, William Oliver  wrote:
> > I am running Fedora 31 on an HP Envy 17t laptop with a NVIDIA MX250
> > gpu.   I have installed the NVIDIA driver downloaded from NVIDA,
> > and it seems to have installed just fine.  I have installed CUDA,
> > as far as I can tell.
> > 
> > 
> > I am trying to use the GPU rendering capabilities of Blender, a 3D
> > modeling package.  However, the package does not believe there is a
> > CUDA compatible GPU installed.
> > 
> > I *think* it's because I'm actually running the Intel VGA
> > controller.
> 
> Are you using an Intel driver?   
> https://wiki.archlinux.org/index.php/Intel_graphics discusses pros
> and cons of various drivers with Intel graphics.
> There are firmware options that may affect "Optimus".  Blender forums
> and the Nvidia Developer (registration required) sites are more
> likely to be helpful, but you will need to translate Debian/Ubuntu to
> Fedora.

Well, Fedora installs the Intel driver as a matter of course.  I
suppose I could try keeping the intel modules from loading into the
kernel, though I don't know exactly which ones those are.  But I can
look it up.  Maybe that will force things to the NVIDIA driver if it
doesn't crash graphics altogether.  But I'm going to have to image the
disk before I start doing that kind of stuff.
Thanks.










> > So, if I'm right, my question is, how do I disable the Intel VGA
> > controller (or not make it the default) so it uses the NVIDIA
> > controller.
> > 
> > 
> 
> Even experts find this stuff painful: 
> https://www.pugetsystems.com/labs/hpc/NVIDIA-CUDA-GPU-computing-on-a-modern-laptop-629/
>   ("modern" as of 2015, with Optimus technology).   
> 
> 
> 
> 
> 
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How to turn of Intel VGA controller?

2020-05-02 Thread William Oliver

I am running Fedora 31 on an HP Envy 17t laptop with a NVIDIA MX250
gpu.   I have installed the NVIDIA driver downloaded from NVIDA, and it
seems to have installed just fine.  I have installed CUDA, as far as I
can tell.

I am trying to use the GPU rendering capabilities of Blender, a 3D
modeling package.  However, the package does not believe there is a
CUDA compatible GPU installed.
I *think* it's because I'm actually running the Intel VGA controller.
So, if I'm right, my question is, how do I disable the Intel VGA
controller (or not make it the default) so it uses the NVIDIA
controller.
Some more information:
First, of course, graphics seems to work in general.  Blender runs
fine, but (for those of you who might use blender), when using the
Cycles renderer,  I can only render using the CPU.
I'm using KDE as my desktop.
There's nothing in my BIOS setup screen (when I hit ESC on bootup and
then F10 for BIOS settings) about graphics controller or intel
I have secure boot turned off.
$ uname -aLinux localhost.localdomain 5.6.8-200.fc31.x86_64 #1 SMP Wed
Apr 29 19:10:01 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux


$ grep '/usr/s\?bin' /etc/systemd/system/display-
manager.serviceExecStart=/usr/bin/sddm
$hwinfo | grep VGA7: PCI 02.0: 0300 VGA compatible controller (VGA) 
Model: "Intel VGA compatible controller"  Attached to: #37 (VGA
compatible controller)  Attached to: #37 (VGA compatible controller)
$hwinfo | grep "3D controller" E: ID_PCI_SUBCLASS_FROM_DATABASE=3D
controller22: PCI 200.0: 0302 3D controller  Model: "nVidia 3D
controller"
$lshw...   *-pci  description: Host bridge  product:
Intel Corporation  vendor: Intel Corporation  physical
id: 100  bus info: pci@:00:00.0  version:
0c  width: 32 bits  clock: 33MHz*-
display description: VGA compatible
controller product: UHD Graphics vendor: Intel
Corporation physical id: 2 bus info: pci@:0
0:02.0 version: 02 width: 64
bits clock: 33MHz capabilities: pciexpress msi
pm vga_controller bus_master cap_list rom configuration:
driver=i915 latency=0 resources: irq:141 memory:b200-
b2ff memory:c000-cfff ioport:5000(size=64) memory:c-
d...
*-pci:1 description: PCI bridge product:
Intel Corporation vendor: Intel
Corporation physical id: 1c.4 bus info: 
pci@:00:1c.4 version: f0 width: 32
bits clock: 33MHz capabilities: pci pciexpress
msi pm normal_decode bus_master cap_list configuration:
driver=pcieport resources: irq:123 ioport:4000(size=4096)
memory:b300-b3ff ioport:a000(size=301989888)   *-
displaydescription: 3D
controllerproduct: GP108M [GeForce
MX250]vendor: NVIDIA
Corporationphysical id: 0bus info: 
pci@:02:00.0version: a1width: 64
bitsclock: 33MHzcapabilities: pm msi
pciexpress bus_master cap_listconfiguration:
driver=nvidia latency=0resources: irq:16
memory:b300-b3ff memory:a000-afff memory:b000-
b1ff ioport:4000(size=128)
$lsmod | grep
nvidianvidia_drm 53248  0nvidia_modeset   1118208  1
nvidia_drmnvidia  20504576  4
nvidia_modesetipmi_msghandler   118784  1
nvidiadrm_kms_helper237568  2
nvidia_drm,i915drm   598016  13
drm_kms_helper,nvidia_drm,i915

The following is a little odd.  This used to load, but while
floundering about, I removed and reinstalled the Nvidia driver from
NVIDIA.  Now it won't load:
$ nvidia-settings
ERROR: Unable to load info from any available system

$ nvidia-smi
nvidia-smiSat May  2 13:52:58 2020   +-
+| NVIDIA-SMI
440.82   Driver Version: 440.82   CUDA Version: 10.2 ||--
-+--+
--+| GPU  NamePersistence-M| Bus-IdDisp.A |
Volatile Uncorr. ECC || Fan  Temp  Perf  Pwr:Usage/Cap| Memory-
Usage | GPU-Util  Compute M.
||===+==+==
||   0  GeForce MX250   Off  | :02:00.0 Off
|  N/A || N/A   48CP0N/A /  N/A |  0MiB
/  4042MiB |  0%  Default |+---+---
---+
--
+  
 +-
+|
Processes:   GPU
Memory ||  GPU   PID   Type   Process
name

Re: KDE on Fedora 30/31

2019-09-23 Thread William Oliver

On Sun, 2019-09-22 at 11:38 +0100, John Pilkington wrote:
> On 21/09/2019 22:37, Alex Gurenko via users wrote:
> > I only have one problem and That's sound not working over HDMI on
> > my 
> > laptop. Assist from that no issues since F27. Prior to that there
> > were 
> > some problems here and there, but that's long gone.
> > 
> > Alex
> 
> In F29 with an nVidia G710 and the rpmfusion 430.40 driver, HDMI
> stereo 
> sound works stably for me - mainly with MythTV.  I have 
> alsa-plugins-pulseaudio and kde-settings-pulseaudio installed and
> kde 
> SystemSettings has a virtual device with simultaneous audio output
> from 
> HDMI2 and Built in Analog audio.  These appear as ALSA:default and
> can 
> be controlled independently from the Speaker widget.
> 
> kdeinit5 reports crashes in F29, F30 after upgrade, and debian sid.
> It 
> gives popups when closing dolphin or kate and also at random, but
> seems 
> mainly harmless.  Lots of BZs and reports on the kde-fedora list.
> 
> https://bugs.kde.org/show_bug.cgi?id=411441
> 
> hth
> 
> John P
> 

Thanks everybody for your replies!

billo
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KDE on Fedora 30/31

2019-09-21 Thread William Oliver

Folk,

A few versions of Fedora ago, I got a little frustrated with the way
KDE was running on my laptop.  I don't remember the actual problem,
really.  I think it had to do with not being able to download and
install icons or themes or some other eyecandy; there was always some
sort of failure.  The upshot was that I was more loyal to my desktop
than my distro and switched to KDEneon since it worked.

But, I've always had a soft spot for Fedora;  I've been using it off
and on ever since it has existed (and Red Hat Linux or Mandrake before
that).  I'm getting the itch to give it a go again, probably when 31 is
finalized.

So... for the KDE users out there, how is Fedora doing with KDE
nowadays?

billo
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Re: Please recommend a super fast video editing software for Fedora 31 Linux

2019-09-20 Thread William Oliver

On Fri, 2019-09-20 at 07:24 -0700, stan via users wrote:
> On Fri, 20 Sep 2019 15:32:35 +0800
> Turritopsis Dohrnii Teo En Ming 
> wrote:
> 
> > [I wanna make pictures]
> 
> I'm not sure what you mean by rendering here, but if you mean
> changing
> frame dimensions, transposing, or other compute intensive operations,
> I
> think you have described the problem below.  Commercial enterprises
> use
> render farms to do these operations, and even they take a long time.
> You could look for articles about places like Pixar to see if they
> mention the computing power they use to get a better idea.
> 
> > [snip]

I agree.  The only real solution for this if you are rendering a long
video is to break it up and use a render farm.  That's the bad
news.  The good news is that you can do that *relatively* cheap with
linux and raspberry pi, or with those crappy old laptops you've
replaced over the years but haven't quite thrown away.  When you farm
it out like that, you can use cheap boxes with crappy processors and
it's OK -- because that's not where you savings in time comes from.

The modeling software Blender now has a "reasonable" video editor
module as long as you are not trying to do hard core stuff, and it
supports network rendering with a plugin.  

Here's a discussion  setting up a render farm in Blender (using macs):
https://www.youtube.com/watch?v=y3EcpkwLCFI

Here's a pointer to farm management software for Blender:

https://www.flamenco.io/

However, please consider this just a pointer.  The last time I did this
kind of rendering was a couple of years ago.

Note that you don't have to use linux for this -- these are cross
platform apps, but linux saves you that used dirty feel in the morning.

billo
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Re: CSV to text -

2019-08-04 Thread William Oliver

I have done it in the past by loading the .csv into a spreadsheet
program, saving a selection as a PDF file, and then converting the PDF
file into text using something like okular or pdftotext.  If you do it
this way there are a couple of things to be careful of:

1) Just save a selection to be converted to PDF.  Some spreadsheet
programs try to save a lot of white space, and take forever to finish. 
I've had this problem with Libreoffice.  There may be a problem if
there are a zillion columns, because you will get it spread over a lot
of pages.  There might be a way around that with the PDF settings, but
I don't know what it is.

2) You may have to play with programs that will move PDF to text to get
the right formatting.  I've had reasonable luck with using okular;
pdftotext tended to have problems with wide pages.

billo

On Sun, 2019-08-04 at 20:05 -0400, Bob Goodwin wrote:
> How can I convert a .csv file to text in a Fedora system.
> 
> Bob
> 
> -- 
> Bob Goodwin - Zuni, Virginia, USA
> http://www.qrz.com/db/W2BOD
> box83  FEDORA-30/64bit LINUX XFCE Fastmail POP3
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Re: How do I de-blur a picture?

2019-07-23 Thread William Oliver

This really isn't a Fedora question but...

Blurring a pixel is simply replacing it with a weighted average of it
and the surrounding pixels.  The mathematical process is called a
"convolution."

Classically, in order to deblur an image, you need to know the blurring
function (the set of weights on the surrounding pixels, the shape of
the group of pixels used in the blur, and the size of the region used
in the blur). When done directly, this blurring function is called the
"point spread function" for obvious reasons. It turns out that there's
a neat thing about this in that the process of blurring is
computationally expensive when done directly, but if you do a fourier
transform of the image, it's just a multiplication of the image with
the blur function (called the "modulation transfer function" in
frequency space).

Reversing the convolution that resulted in the blurred image is called
"deconvolution."

The down side of doing things in frequency space is that many of the
coefficients are very small, or zero, usually, and 1) you can't divide
by zero, 2) small errors in very small numbers lead to very big errors
when you divide by them.  So, if you don't have your point spread
function perfectly characterized, your error blows up.  There are all
sorts of ways to try to get around this, both in image space and
frequency space, but the bottom line is that if you know your point
spread function well, you can deblur well, and if you don't, you can't.

The well-known "unsharp mask" function is basically one iteration of a
multi-iteration deconvolution method in image space that assumes the
blur function is a gaussian/binomial.  Thus, it doesn't look too bad if
you do it a little, but looks horrible if you do it a lot -- because
the real blurring function is likely not a gaussian.  The more you do
it, the more the error becomes dominant.

You can try to do this without knowing the blurring function.  This is
called "blind deconvolution."  However, these methods usually force you
to make assumptions about things in the image, and then modify the
image to fit those things.  The classic example here is astronomy
photography where you can assume that a distant star it just a dot, or
microscopy where they sell tiny little spheres that you then photograph
and modify the image so that they look like little spheres.  That way
you can estimate the point spread function and go from there.  

Deblurring was a big deal in the 1980s when they put up the Hubble
telescope and found out they had polished the mirrors incorrectly.  The
US government dumped millions of dollars in (successfully) trying to
correct for the Hubble blur.  It then became very popular in
specialized microscopy, such as confocal microscopy, where you are
pushing the optics to their limits.

The other big advance was for smartphones.  There are two common ways
to make sure you take good photos. The first is to have excellent
lenses with great optics, and try to do as little post processing as
possible.  The second is to have a cheap lens that is well
characterized mathematically and designed to have few of those bad
coefficients, so you can easily post process it to get a good image.
Thus, you can either buy a really good camera with expensive lenses and
take a good picture to start with, or you can put a cheap lousy lens in
a smartphone and process the bejeezus out of it.

There are a number of freeware programs out there for deconvolution,
and a whole industry of proprietary stuff.  Unfortunately, you usually
have to start by characterizing your point spread function, and that's
always a hassle.  Some places have standardized point spread functions
for well-known lenses, but they can be hard to find.

One piece of software that has a number of deconvolution plugins
(primarily for microscopy) is ImageJ or Fiji (a not-quite-fork of
ImageJ). ImageJ is maintained by the National Institutes of Health in
the US, and is free.  Fiji is maintained by an academic institution,
but I can't remember which.

So, do searches on "deconvolution," "blind deconvolution",
"deblurring," and "ImageJ deconvolution", "Fiji deconvolution."  That
will get you started.

In particular, see: 
https://imagej.net/Deconvolution

billo

On Tue, 2019-07-23 at 01:09 -0700, ToddAndMargo via users wrote:
> Hi All,
> 
> Fedora 30, x64
> 
> Anyone know of a way to remove the blur from this picture?
> 
> https://ibb.co/cTPNHLf
> 
> 
> Many thanks,
> -T
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Re: what the devil does this log message mean?

2019-06-05 Thread William Oliver


I don't know, but ...  this looks promising:

https://fedoramagazine.org/systemd-unit-dependencies-and-order/

If this is it, it would imply that the reason it's intermittent would
be the ordering of how things come up, which is apparently not always
the same...

This may be the same sort of thing:


https://serverfault.com/questions/617823/how-to-set-systemd-service-dependencies#617839


billo


On Wed, 2019-06-05 at 07:13 -0400, Tom Horsley wrote:
> Jun  4 08:19:35 tomh sshd[13944]: pam_systemd(sshd:session): Failed
> to create session: Start job for unit 'session-12186.scope' failed
> with 'dependency'
> 
> These occur at somewhat random intervals with no obvious correlation
> with anything I've done.
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Re: OT: using MS Graph to retrieve e-mail from Office 365 and deliver to linux MTA on F29

2019-03-21 Thread William Oliver


On Thu, 2019-03-21 at 00:04 -0500, Ranjan Maitra wrote:
> Dear friends,
> 
> Our workplace recently switched to OTP-based two factor
> authentication with Office 365 and mandated everyone to use the
> browser, Windoze or Evolution. We want to do none but get e-mail the
> old-fashioned way, delivered to my local HDD and read by my mailer.
> Looking around, we have successfully written python code to get e-
> mail using MS Graph. But following the examples there, we can
> retrieve e-mail in json format and needs further processing before it
> can go to a MTA. I am not sure that procmail will work, so I am
> wondering how to deliver mail to my HDD in Mbox format (to be read by
> sylpheed or some other e-mailer).
> 
> But, is json format the only way to extract these e-mails? Or are
> there other options available that are friendlier for more general
> MTAs? Otherwise, how does one get these e-mails in a Mbox format?
> 
> Sorry if my question is not very clear: we are very new to this and
> still struggling to understand everything.
> 
> Many thanks for any helpful pointers and references, and best wishes,
> Ranjan
> ___
> 

My solution was a lot simpler when I wanted to read work emails in my
linux client.  I just turned on forwarding in Office 365 to an email
address on my server at home.  I spoof the "Reply To:" back to my work
address, though I almost only *read* emails from home. I rarely reply
until I get to work the next time.  My office doesn't use two-factor
authentication, so I don't know if that makes this impossible...

It's not perfect, but it only took 30 seconds, and it's good enough.


> 
https://lists.fedoraproject.org/archives/list/users@lists.fedoraproject.org
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Re: Email Question - OT

2019-02-21 Thread William Oliver

On Wed, 2019-02-20 at 13:09 -0800, Mike Wright wrote:
> [snip]
> You didn't have a dns delegation-of-authority which allows you to
> claim 
> control or the mail server's reverse dns address and showing you're
> not 
> some fly-by-night spammer or some such.
> 
> If your were to dig for the PTR record for the mailserver's IP you
> would 
> get back something like 75-25-207-10.lightspeed.sjcpca.sbcglobal.net 
> that indicates who is currently in charge of that IP.  If you had
> the 
> delegation-of-authority it would return YOUR mailserver's name.
> 
> e.g.
> 1st record shows name of mailserver for your domain
> 2nd record shows address of mailserver
> 3rd record ties the mailserver's address to it's IP
> 
> forward dns:  yourchurch.org  IN MX  mx.yourchurch.org
> forward dns:  mx.yourchurch.org   IN A   192.168.10.20
> reverse dns:  20.10.168.192.in-addr.arpa  IN PTR mx.yourchurch.org
> 
> The delegations are usually available from your ISP if you're
> persistent 
> and may come with a monthly fee.  AT used to charge me $5 US but 
> raised it to $15 because they could.  Good bye AT, hello Digital 
> Ocean: $5 for a basic server includes a delegated authority record.
> 
> 


Yes!  Now that you mention it, that's the buzzword I was blanking on. 
My mistake was that I thought that the delegation of authority was a
configuration issue and I kept trying different ways of assigning it to
myself in the bind configuration files and nothing worked.  I got to
that horrible point of just making random changes in random
configuration files just to see if anything would change, and then gave
up.  I completely missed that I had to go to the ISP to get it.

Sigh.  That's part of my life I'll never get back.


billo
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Re: Email Question - OT

2019-02-20 Thread William Oliver

On Wed, 2019-02-20 at 10:16 -0700, S. Bob wrote:
> Hi All;
> 
> This is probably Off Topic, apologies...
> 
> 
> I recently kicked googlemail to the curb in favor of a service that
> does 
> not read my emails (fastmail). We are very happy with fastmail. We
> are 
> using our own domain which I was also doing with google.
> 
> All of our clients can now email me at the same email address as
> before 
> and I get the emails via fastmail, however we have one client that I
> do 
> not receive the emails for. They can email  me at other addresses
> but 
> not the 'migrated' address. I'm not sure how to even start debugging
> this...
> 
> Any thoughts, ideas, suggestions would be much appreciated
> 
> 
> Thanks in advance
> 
> 

This happened to me when I set up a mailinglist for a church group I
belonged to.  I ran a mail server I had in my home office that was
hooked up to a cable service.  Of the 50 people on the list, 20 could
not send mail to the list -- even though they could receive mails.

It turned out that all of them were using one cable vendor and were
getting their internet connection through it.  I tried calling them,
but the technical support folk there said it was my problem and they
were not interested in spending time trying to help me -- so I was on
my own.

I did a search on the problem at the time, and I wasn't the only person
who ran into it.  From my reading, it seemed that it was an issue of
this particular ISP's internal security protocol that involved some
sort of checking of ownership or something like that.  The gist I got
was that my domain resolved correctly, and the ICANN ownership info of
the domain was correct, but the ownership of the some other component,
like the IP address, was different, since it was tied to my ISP and not
to me -- even though I was doing my own nameservice.  Thus, I broke
their spoofing rules.  There was no solution that I could find, and
none that worked for other folk who ran into it -- all of whom were
running their own name and mail service from home.

The workaround I ended up using was to change the Reply To: address for
those users to a big-name server address (gmail as I remember) and then
forwarded that to my server, which it would do.

Note:

1) This was specific to one ISP (and the search turned it up only for
that ISP) 
2) It was back in 2008
3) I may not have characterized it correctly, since I didn't actually
solve it.

billo
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[Solved]Re: Cannot boot windows dual boot -- is this a grub issue?

2019-01-03 Thread William Oliver

On Thu, 2019-01-03 at 12:44 -0500, William Oliver wrote:
> I just installed Fedora29 on my brand new HP laptop.  The
> installation
> went fine, and Fedora comes up fine.  However, I was trying to
> install
> it as a dual boot machine, and the Windows option does not come up
> either with a "normal" grub bootup or when I choose boot options in
> BIOS.
> 
> THe box has hybrid drive -- 256G SSD and 1 TB regular.  I'm
> installing
> everything on the SSD right now, and then will link out stuff or
> repartition just a bit to move things to the 1 TB drive.  But I
> thought
> I'd just stick to the SSD for installation to minimize hassles.
> 
> I didn't delete or overwrite the EFI partition, and /boot/efi has
> what
> appears to be old HP, Microsoft, and Boot directories in addition to
> the new fedora directory.
> 
> The only thing that was unusual in this installation was that I got
> the
> warning that because I was using GPT, I had to create a 1 MB
> bootsomethingsomething partition -- which I did.
> 
> So, now my drive looks like:
> 
> partition  name fs   mount sz  flags
> /dev/nvme0n1p1  EFI fat32   /boot/efi   260 MB boot,esp
> /dev/nvme0n1p2 MS reserved  unknown  16 MB msftres
> /dev/nvme0n1p3 basic data   ntfs60 GB  msftdata
> /dev/nvme0n1p5  grub2.core.img   2 MB  bios_grub
> /dev/nvme0n1p6  lvm2 pv  fedora 55.89 GB   lvm
> /dev/nvme0n1p4 basic data   ntfs   980
> MB  hidden,diag
> 
> There's about 121 unallocated GB on the SSD, and the 1 TB drive isn't
> mounted.
> 
> Eventually, this will be a triple boot system, with the other OS
> being
> qubesOS.  However, I need a vanilla Fedora boot option because
> qubesOS
> won't support some graphics I need for some apps. But, I usually
> install the Qubes stuff last, since it's such a joy.
> 
> So, I have two questions:
> 
> 1) WHat is this 1 M bootsomethingsomething I had to make?  It looks
> like it turned into something called bios_grub.  I've never had to do
> this before.
> 
> 2) Can someone point me to resources to learn how to troubleshoot
> making grub see my Windows stuff?  Or give me any ideas?
> 
> 
> Thanks!
> 
> billo
> ___
> 

OK, my apologies to the list.   I had managed somewhere in my poking
around to turn on legacy boot, and installed Fedora then.  I noticed
that, disabled legacy boot (which then gave the very frightening
warning of "no operating system present"), and then re-installed
Fedora, and now both Windows and Fedora come up as options in the BIOS
boot options and both work.


So, here's an easier (I hope) question.  I remember back in the day,
when I would power up my machine in dual boot mode, grub would give me
a grub menu that let me choose the OS.  Now, it just comes up in
Windows. If I want to boot into Fedora, I have to get into BIOS boot
options and choose it there.  It's not that big a deal, but it would be
easier not to have to start hammering on the escape key when I
reboot...

billo
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Cannot boot windows dual boot -- is this a grub issue?

2019-01-03 Thread William Oliver

I just installed Fedora29 on my brand new HP laptop.  The installation
went fine, and Fedora comes up fine.  However, I was trying to install
it as a dual boot machine, and the Windows option does not come up
either with a "normal" grub bootup or when I choose boot options in
BIOS.

THe box has hybrid drive -- 256G SSD and 1 TB regular.  I'm installing
everything on the SSD right now, and then will link out stuff or
repartition just a bit to move things to the 1 TB drive.  But I thought
I'd just stick to the SSD for installation to minimize hassles.

I didn't delete or overwrite the EFI partition, and /boot/efi has what
appears to be old HP, Microsoft, and Boot directories in addition to
the new fedora directory.

The only thing that was unusual in this installation was that I got the
warning that because I was using GPT, I had to create a 1 MB
bootsomethingsomething partition -- which I did.

So, now my drive looks like:

partition  name fs   mount sz  flags
/dev/nvme0n1p1  EFI fat32   /boot/efi   260 MB boot,esp
/dev/nvme0n1p2 MS reserved  unknown  16 MB msftres
/dev/nvme0n1p3 basic data   ntfs60 GB  msftdata
/dev/nvme0n1p5  grub2.core.img   2 MB  bios_grub
/dev/nvme0n1p6  lvm2 pv  fedora 55.89 GB   lvm
/dev/nvme0n1p4 basic data   ntfs   980 MB  hidden,diag

There's about 121 unallocated GB on the SSD, and the 1 TB drive isn't
mounted.

Eventually, this will be a triple boot system, with the other OS being
qubesOS.  However, I need a vanilla Fedora boot option because qubesOS
won't support some graphics I need for some apps. But, I usually
install the Qubes stuff last, since it's such a joy.

So, I have two questions:

1) WHat is this 1 M bootsomethingsomething I had to make?  It looks
like it turned into something called bios_grub.  I've never had to do
this before.

2) Can someone point me to resources to learn how to troubleshoot
making grub see my Windows stuff?  Or give me any ideas?


Thanks!

billo
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[SOLVED] Re: Problem installing Fedora 29

2019-01-03 Thread William Oliver


On Thu, 2019-01-03 at 09:25 +0800, Ed Greshko wrote:
> On 1/3/19 9:13 AM, William Oliver wrote:
> > I just bought a brand new little HP laptop and decided to try to
> > install Fedora 29.  I created the bootable flash drive in Windows
> > using
> > Rufus.  When I try to boot from the flash drive, I get the
> > following
> > error:
> > 
> > [ 8.520307] dracut: FATAL: Failed to mount block device of live
> > image:
> > Missing NTFS support
> > [ 8.530427] dracut: Reufusing to continue
> > [ 9.112611] reboot: System halted
> > 
> > 
> > Any help would be appreciated!
> 
> I've not done this, but a little googling and reading shows that to
> create a bootable live
> USB drive under windows you should download and install on window the
> "MediaWriter".
> 
> https://getfedora.org/fmw/FedoraMediaWriter-win32-4.1.1.exe
> 
> Run it, and follow the instructions.
> 
> 

My bad.  The file was corrupted.  I forgot to check the SHA256 hash.  
When I did, the file was corrupt.  I reloaded and it worked fine
(though there's another issue I'll ask about in a different post).

Thanks.

billo
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Problem installing Fedora 29

2019-01-02 Thread William Oliver

I just bought a brand new little HP laptop and decided to try to
install Fedora 29.  I created the bootable flash drive in Windows using
Rufus.  When I try to boot from the flash drive, I get the following
error:

[ 8.520307] dracut: FATAL: Failed to mount block device of live image:
Missing NTFS support
[ 8.530427] dracut: Reufusing to continue
[ 9.112611] reboot: System halted


Any help would be appreciated!

Thanks,

billo
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Re: Gimp

2018-11-18 Thread William Oliver

The bottom line is that if someone desperately wants to be offended,
they will find a way.  Conversely, if someone doesn't want to be
offended, it's almost impossible to offend them.

This seems to be a mysterious secret to a lot of people.  Many years
ago, I realized that being "offended" was completely up to me.  I made
the conscious decision not be be offended by anything anybody said to
or about me, unless it served some particular tactical purpose.  It was
amazingly liberating.

Choosing to be offended is exactly that -- a choice.  If one chooses to
be offended, then one is offended.  And there is nothing anybody else
can do about it.  Since it's a choice, and since the choice is based on
individual desires and motivations, there's no real value in debating
whether or not something is somehow "inherently" offensive by some
nonexistent objective standard.  Such a standard does not actually
exist.  Those who try to impose such as standard are simply trying to
impose their particular desires.

billo

On Sun, 2018-11-18 at 10:32 -0700, Joe Zeff wrote:
> On 11/18/2018 10:14 AM, Frau Silvia Sánchez wrote:
> > I don't know why do you think that comment was  "police-like"  or
> > why do 
> > you think that been disrespectful to Gnome designers is correct.
> 
> I can't speak for anybody else on the list, but to me, your comment
> came 
> across as very PC.  I think it's safe to say that the only PC that's
> on 
> topic on this list is the Personal Computer.
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Re: Debian vs Fedora

2018-11-06 Thread William Oliver

I jump around a lot.  I usually reinstall my OS every five or six
months.  I do it primarily as a security issue -- if my machine has
been compromised and I don't know it, at least every few months I
*know* I'm clean.  What I've found is that the "pain" of installation
varies from release to release, and is not a fedora/debian/arch/suse
issue per se.   I've had some cases where fedora installed like a dream
and debian/mint/ubuntu had problems, some cases where debian installed
easy and fedora crumped, and some cases where arch/manjaro was great
and everything else had problems.
A few weeks ago, I went to Manjaro, not because I'm an Arch fan, but
because I downloaded fedora, kubuntu, and KDE neon and it was the
*only* one that installed without a problem.   Before that, KDE neon
installed without a hitch.  Before that Fedora installed without a
hitch.
In a few months, I'll do it again, and it will be a different distro
that works...
Usually, I start with Fedora KDE spin, then try KDE neon, then try
Manjaro, then try SUSE.

billo

On Tue, 2018-11-06 at 08:43 +0100, luca paganotti wrote:
> Hi, I switched from fedora to debian few years ago after about ten
> years of fedora distros usage and now happy with my linux boxes. The
> main reason was the pain I had at each new fedora release, the
> upgrade process to new versions often failed and I had to "rebuild"
> the offended machine(s). This is not acceptable (at least for me), no
> such pains with debian even if I'm not on the bleeding edge I have
> now a stable environment. I don't know if things are getting better
> with the last fedora releases, it will be nice to know. Fedora has
> been my favourite distro for at least a decade, I grow up my linux
> skills with it, but I had to leave it. Anyway I think that is up to
> you, it's your choice, take your time to explore other distros and
> think well of what you search in a linux distro, what your use cases
> will be, what you want to do with it. Have an open mind on making
> your choice :-)
> -- 
> luca.pagano...@gmail.com
> -- https://github.com/lucapaganotti
> -- sourceforge email: 
> -- lucapagano...@users.sourceforge.net
> -- skype name: luca.paganotti
> 
> -- Mastodon: lucapagano...@fosstodon.org
> -- ---
> -- Mistakes are portals of discovery - JAAJ
> --- --
> 
> 
> 
> On Mon, Nov 5, 2018 at 8:09 PM vipul kumar via users <
> users@lists.fedoraproject.org> wrote:
> > Greetings,
> > 
> > 
> > 
> > I'm a Debian user(from almost 3 years). And I've question Why
> > should I choose Fedora over Debian as a my operating system?
> > 
> > 
> > 
> > Cheers,
> > 
> > finn
> > 
> > ___
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> 
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Re: Will RedHat deprecate KDE on Fedora?

2018-11-04 Thread William Oliver

On Sun, 2018-11-04 at 07:07 -0600, Rex Dieter wrote:
> Matthew Miller wrote:
> 
> > snip
> > 
> > That said: also, no, there is no such plan. As long as people are
> > interested in working on it, there will be a KDE desktop option in
> > Fedora.
> 
> As a long-time contributor to fedora kde-sig, I emphatically echo
> what 
> Matthew just said.
> 
> -- Rex
> 

That's good to hear. I'm a fan of both Fedora and KDE... though I'm not
running Fedora now.  Unfortunately, Fedora 29 won't install on my
laptop.  This seems to happen once every two or three versions, and
then gets fixed.   It's easier for me to move to a different distro
(right now I'm using KDE Neon) than try to deal with odd
grub/efi/hardware/bios/dual boot  issues, and it almost always seems to
go away with the next version.

billo
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Will RedHat deprecate KDE on Fedora?

2018-11-02 Thread William Oliver

I just read this in The Register -- that  RH is deprecating KDE in
RHEL.  As a long time fan of KDE, I'm a bit saddened.  Is this planned
for Fedora as well?


https://www.theregister.co.uk/2018/11/02/rhel_deprecates_kde/


billo
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Re: Replacing email list for users with a web forum software called Discourse, what's your opinion?

2018-10-20 Thread William Oliver

This comes up occasionally on another list I belong to. The dynamic of
a forum and a mailinglist are very different, mostly because one is
push and one is pull.

With a forum, you have to *go* to the site, which means that folk who
are peripherally interested will just stop looking unless they have a
specific problem bad enough to go to the forum.  This means that you
will have fewer people on the forum, but they will be more committed.

Basically, you will lose readers such as myself.  I like to read the
comments on this list, but it's fairly low on my hierarchy of stuff to
read in the afternoons.  So... I scan the emails and see if there's a
title that I might find interesting.  Otherwise, I delete it without
reading.   I like to get the emails, but I don't read all the threads. 
If I had to make the effort to go to a forum, I'd do it rarely.

Some forum software provides a hybrid solution -- there's a web-based
forum UI, but a user can opt to have the comments pushed on email to
them, and can respond by email.  Thus, folk like me can still get the
"mailinglist experience" while others can do a forum thing.

billo

On Sat, 2018-10-20 at 18:17 -0400, Tom Horsley wrote:
> On Sat, 20 Oct 2018 14:42:20 -0700
> stan wrote:
> This 
> > I'm wondering how the people who regularly use fedora-users mailing
> > list feel about that.
> 
> There is already a fedoraforum which I don't use at all because
> I despise forums because they are nothing like as useful as mailing
> lists.
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Re: Stitch photos?

2018-08-05 Thread William Oliver

On Sun, 2018-08-05 at 12:42 +0800, Ed Greshko wrote:

> [snip]

> I believe you may want to try this package.  I've not used it
> recently since the
> devices that I now use do the stitching while taking panoramas but it
> worked for me
> in the past.
> 
> [egreshko@meimei ~]$ dnf info hugin
> Last metadata expiration check: 9 days, 4:55:17 ago on Fri 27 Jul
> 2018 07:45:01 AM CST.
> Available Packages
> Name : hugin
>snip

Hugin is great.  I use it all the time for stitching together low power
photomicrographs from multiple shots from a microscope.   I commonly
put together 40 or 50 photos into one large one.

However, you need to remember that Hugin is for creating panoramas
fromcamera shots, and assumes that all the photos are taken from a
single point by changing camera angles -- not by shifting the camera as
projects using a spherical model by default.  Be careful about setting
the focal length and projection.  For just four images, rectilinear or
cylindrical projections should work OK.  But if you want to do
measurements from the stitched image, Hugin may introduce some
distortion with scanned images.

billo
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Re: Which is better? Microsoft Exchange 2016 or Linux-based SMTP Servers?

2018-07-18 Thread William Oliver

On Wed, 2018-07-18 at 15:15 +, Turritopsis Dohrnii Teo En Ming
wrote:
> Good evening from Singapore,
> 
> I am torn between deploying Microsoft Exchange 2016 and Linux-based
> SMTP servers like sendmail, postfix, qmail and exim.
> 
> Relative ease of installation and configuration is an important
> consideration factor.
> 
> [snip]

For my size of shop (about 100 users), linux works fine.  I don't know
what the answer is for huge shops that have to have distibuted systems
-- I've heard that's a lot more complicated, but have never done it.

As far as ease goes, it's like everything else.  If you are used to it
and comfortable with something, then it's "easier" and the learning
curve for doing something else makes it harder.  I have been setting up
linux mail and web servers for years, and it's a piece of cake for me. 
I set up an Exchange server last year, and I was ready to kill myself
after a few hours.  I have little doubt that someone who has years of
experience with Exchange servers and little experience with linux would
feel just the opposite.

It's like the old Windows/Linux conversation.  When people say "Linux
is hard" what they really mean is just "I'm used to Windows and Linux
isn't like Windows."  I used to maintain some Windows boxes back when
it was Windows 3.1, and up until the introduction of Windows 7, and
sort of kept up with it.  I sat down at a Windows 10 box the other day
and was all confused.  It was "hard" because it wasn't what I was used
to, and I didn't care to put in the effort to become competent again.

So, the real answer is that there's no such thing as a free lunch. 
There are tools to ease the hassles of setting up a linux mail server,
but really, there are so many tutorials on it out there that doing it
by hand isn't all that hard -- if you just do it.  I'm sure the same
thing is true with Exchange.

The real question for me, if I had to do it all over again, is if my
company isn't freaking huge, why host it myself anyway?  I'd be tempted
to use one of the many large email services and let them worry about
security, etc.  And, you know... "Cloud" is the thing nowadays.  Why
not?

If the answer to "why not" is because you want hands on control, and
you want absolute control over logs and backups and security, then that
would point to linux.   You can get in there and fiddle with all the
knobs and turn all the nuts on all the bolts.

If it was me, I'd see what my users needs were.  If they are all die-
hard Outlook and Microsoft365 users, then I'd go with Exchange.  I've
never integrated linux mail servers with Outlook and Microsoft365, but
it just doesn't sound like fun.  If the users are not Outlook people,
then I'd cobble together a linux system  - because I prefer a stick
shift to an automatic transmission.

billo
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Re: Organising photos visually

2018-01-29 Thread William Oliver

On Mon, 2018-01-29 at 12:27 +, Patrick O'Callaghan wrote:
> Looking for some advice here. I have a large set of old slides
> (transparencies) which I'm currently scanning for the family, but of
> course many of them are out of order. Clearly they don't have EXIF
> information (they were taken in the 70s and 80s). I'm looking for a
> way
> to order them *visually* after scanning, but the usual apps (Digikam,
> Shotwell, Lightroom) don't seem to be able to do this. They only
> understand machine-readable sorting, e.g. by the file mod date, size,
> exposure data etc., none of which is useful in this case.
> 
> Any ideas?
> 
> poc

I think the buzzword for searching for software is "gallery," and
most of them are web-based.  I use pwigo (www.pwigo.org ), which has a
manual sort option (though you have to dig in a little to find it).

But if you're not serving a web page somewhere, I don't know.  There's
always the Wikipedia page to sort through, I guess, though I don't find
that useful as often as I hope:  https://en.wikipedia.org/wiki/Comparis
on_of_photo_gallery_software

billo
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Re: triple head

2018-01-17 Thread William Oliver

On Wed, 2018-01-17 at 09:11 +0700, Frederic Muller wrote:
> On 01/17/2018 02:48 AM, William Oliver wrote:
> > I give
> > myself about an hour of poking around, and then say "screw it" and
> > do a
> > clean install.
>  
> Yes that sounds about right probably. It'll take more than 30 minutes
> as I need to do a fresh back and a fresh reinstall, but that could
> probably be a good way to fix the problem since I seem to be the only
> one affected by it.
> 
> Thank you.
> 
> Fred
I also wander away from Fedora for awhile on occasion, and then come
back.  There have been a couple of Fedora versions that just didn't
work well on my machine.  I'm using KDE Neon right now, because I had
some issues with Fedora 26.  I don't even remember what the issue was,
except it lasted longer than my fuse.  I would have moved back to
Fedora when 27 came out, but I thought I'd give Qubes 4.0 a try, which
is fedora-based (sort of), and will move to it if I can get it
installed -- which was no mean feat with Qubes 3.2.
I used to be the kind of guy who wanted to track every little thing
down, and thought people who used GUI tools for configuration were
wimps.  I wanted to edit files directly.  But automation has sort of
been baked in to Fedora now, systemd has made everything opaque, I
don't have a clue how to fiddle with wayland (and apparently I'm not
supposed to be able to do so),and even when you do edit config files,
some service or another will come back in five minutes and edit it back
(I'm talking to you, Network Manager).  So to hell with it.  Now I use
the simplest path possible, and if that doesn't work, I blow it up and
start over, or download other distros until something works.  Usually,
one of Fedora, Manjaro, Debian, or Arch will do fine for a few months,
until a new version comes out to break things.
It seems that Linux is increasingly like Windows in becoming less and
less accesible to tinkerers and becoming more and more opaque.  I still
much prefer Linux, and I like Fedora, don't get me wrong, and I can
understand why enterprise folk want things as automated as possible --
I did too, when I was a "real" sysadmin for a sizeable network a decade
or so ago.  But I kind of miss the old days when you could more easily
poke around.
I should probably just give up and go to some really stable distro like
CentOS, but there the opposite is true.  Since I like to tinker, a
system that just "works" is boring...  Too hot or too cold, nothing
"just right."
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Re: triple head

2018-01-16 Thread William Oliver

On Tue, 2018-01-16 at 21:43 +0800, Ed Greshko wrote:
> On 01/16/18 20:40, Frederic Muller wrote:
> > 
> > On 01/16/2018 06:04 PM, Ed Greshko wrote:
> > > 
> > > On 01/16/18 17:49, Frederic Muller wrote:
> > > > 
> > > > Yes.. I'm one hour earlier I think. So tried using Xorg and the
> > > > same happens. :-/
> > > I see  How about if you create a new user?
> > > 
> > Added a new user but unfortunately every time I log with it the
> > machine hangs. It
> > runs first ok, I have time  to show the dock which has 4 icons
> > (Firefox, Rythmbox,
> > Nautilus and Software and then a new icon starts to appear on the
> > dock (without any
> > icon and a triangle with a exclamation mark) and then it hangs.
> > Happened 3 times
> > out of 3.
> > 
> > 
> That is very, very strange.  Pointing to something more basic.  Are
> any of your file
> systems full?
> 
> 
> 

You know, if it was me, I'd get into the account that works and install
some lightweight windowing system, and then see if it works in that.
 If I can get three displays up and running in XFce of LXDE, then I
know that it's a Gnome issue.  Since disk space is cheap nowadays, I
usually install one of these in addition to KDE (I'm a KDE person) when
I first set up my machine.

I've had similar issues in KDE, and it's usually been because of some
issue with upgrading or incomplete installation that I missed.  I give
myself about an hour of poking around, and then say "screw it" and do a
clean install.  After all, it takes about 30 minutes to do a clean
install, most of which isn't interactive.  And it fixes all sorts of
hidden config/conflict issues. 

YMMV of course, if you have to deal with licensing on proprietary
software and such that can make reinstall a bigger hassle.  But for me,
it's at the top of the "OK, this isn't a trivial problem" fix
algorithm.  To be honest, I've deleted the first part of the thread, so
I don't rememberif this is a new problem on a new installation -- in
which case doing a clean install may have less of a chance of magically
fixing things, obviously.

billo
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Re: PDF viewers: suggestions? reviews?

2017-12-28 Thread William Oliver

On Thu, 2017-12-28 at 07:36 -0500, Temlakos wrote:
> Everyone:
> 
[snip]
> I need advice on whether I can abandon Adobe Reader completely, and
> what 
> to use instead.
> 
> I use it all the time for certain PDF's that come with form fields
> that 
> you fill out. Not all PDF viewers--and not the PDF viewer native to 
> Firefox--support form filling. Without form filling, I have to fill
> in 
> forms by hand--and my fist is a bit of a strain on anyone's eyes, 
> especially those of a bureaucrat or his confidential secretary. So I 
> need form filling.
>[snip]

I use Okular the most.  However, I have the same problem you have --
some forms work, and some forms do not.   Most of the time, it works
OK, but it seems that there's always some new thing in Adobe that
Okular and the others haven't caught up with, and those companies and
agencies that like to use the latest Adobe features make forms that
just don't work in linux.  I have about an 85% success rate for PDF
forms using Okular.

billo
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Re: tcp_wrappers deprecation

2017-08-15 Thread William Oliver

On Tue, 2017-08-15 at 08:22 -0400, Tom Horsley wrote:
> On Tue, 15 Aug 2017 13:58:16 +0200
> Jakub Jelen wrote:
> 
> > Thank you for comments and constructive ideas.
> 
> I certainly never understood why it existed at all, unless maybe
> it pre-dated having a firewall. It seems totally redundant
> to the firewall.
> 

I can remember as a sysadmin back in the 1990s, I thought it was a
lifesaver.  Unfortunately, I don't remember *why* I thought it was a
lifesaver -- but I remember it being necessary for running things like
DenyHosts in the early to mid 2000s.

billo
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Re: How to turn on networking from rescue boot

2017-07-31 Thread William Oliver

On Sun, 2017-07-30 at 09:37 -0400, fred roller wrote:
> > However, I've forgotten how to turn on wifi networking from rescue
> mode.
> > 
> > Can anybody point me to a tutorial?
> 
> You could use the "iw" commands:
> 
> man iw
> 
> which should give you the info you need.
> "NAME
>        iw - show / manipulate wireless devices and their
> configuration"
> 
> if you would like to review a tutorial:
> 
> http://linuxcommando.blogspot.com/2013/10/how-to-connect-to-wpawpa2-w
> ifi-network.html
> 
> has a decent write up if a bit dated.  Should get you pointed in the
> right direction but everything still looks good on quick review.
> 
> HIH,
> Fred
> 
> ___

Thanks to everybody for the replies.  None of these worked,
however. The weird thing was that when I tried the nmcli or tried to
turn on NetworkManager, it dropped me back to the login prompt.


 I eventually gave up and reinstalled.

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Re: is it just me, or is firefox suddenly nad-grindingly slow?

2017-07-19 Thread William Oliver

On Wed, 2017-07-19 at 14:17 -0700, stan wrote:
> [snip]
> 
> 
> It's just you.  I notice slowdowns at popular times for social media,
> which I suspect are my ISP, or those popular sites, throttling
> traffic.  But in general it is behaving how it has always behaved.  I
> recently tried some other browsers because of a problem with the way
> a
> site was behaving (a bug in their site), and I didn't notice any
> difference in speed.
> 
> You could see if one of your add-ons is the cause by starting it from
> the command line
> /usr/bin/firefox -safe-mode
> If it is fast then, restore the add-ons one by one until you find the
> culprit.
> 

Oddly, when I upgraded to F26, I had a noticeable increase in
responsiveness of Firefox.  I don't know if F26 is generally a bit more
snappy than F25 was, or if it's because I deleted all my caches.  On my
last backup, there seemed to be a zillion cached thumbnails and files
that Firefox was keeping, in spite of me severely limiting the amount
of space it was supposed to be using for that kind of stuff.

I've noticed a couple of times that getting rid of the ./.mozilla and
./.cache/mozilla directories (and assorted addon detritus) and starting
over has sped things up, at least for awhile.  Of course, it meant re-
installing my addons, which is a bit of a chore, but I could tell the
difference.

I keep wondering if Firefox and the addons aren't dropping cow pies all
over my hidden directories until it's piled so high it can't move.

billo

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Re: Network dies on laptop lid closure

2017-07-18 Thread William Oliver


On Wed, 2017-07-19 at 04:08 +0930, Tim wrote:
> Oh, and another thing...
> 
> Allegedly, on or about 18 July 2017, William Oliver sent:
> > I'm running Fedora 26 on a slightly old HP laptop using KDE.
> 
> Do you have other desktops installed, too?  Even if you're using KDE,
> perhaps a part of another desktop manager is monitoring the lid, as
> well.
> 
> 

I use NetworkManager.  I installed Xcfe and Hawaii, but deleted Hawaii.
 Xcfe is still installed.

billo
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Re: EXTERNAL: Re: Network dies on laptop lid closure

2017-07-18 Thread William Oliver

On Tue, 2017-07-18 at 13:24 -0400, Wells, Roger K. wrote:
> 
> > > 8/2017 11:08 AM, Sylvia Sánchez
> > >   wrote:
> > > 
> > > 
> > > 
> > > >   
> > > >   
> > > > 
> > > >   
> > > > 
> > > >   
> > > >   Hello,
> > > > 
> > > > 
> > > > If you're going to install another desktop to test
> > > > configuration
> > > > I would suggest Cinnamon or Xfce. Gnome 3 has very few
> > > > options,
> > > > so you might not be able to test much.
> > > > 
> > > > 
> > > >   
> > > > 
> > > >   
> > > > 
> > > >   
> > > > 
> > > 
> > > 
> > > 
> > > 
> > > 
> > > FWIW
> > > 
> > > On my Thinkpad X260, Fedora 25 (fully updated), Gnome3 adding
> > > the
> > > following line:
> > > 
> > > HandleLidSwitch=ignore
> > > 
> > > to
> > > 
> > > /etc/systemd/logind.conf
> > > 
> > > allows the PC to not suspend when the lid is closed.
> > > 
> > > This was after a restart.  A simple logoff/login sequence was
> > > not
> > > sufficient.
> > > 
> > > Also, this is true using either X11 or Wayland.
> > > 
> > > 
> > > 
> > > uname -a
> > > 
> > > Linux rwells-x260 4.11.9-200.fc25.x86_64 #1 SMP Wed Jul 5
> > > 18:19:05
> > > UTC 2017 x86_64 x86_64 x86_64 GN
> > 
> > 

   
That stops the machine from suspending or hibernating, but the network
still turns off -- even though the rest of the box stays up.

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Re: Network dies on laptop lid closure

2017-07-18 Thread William Oliver

On Tue, 2017-07-18 at 11:33 -0400, Fred Smith wrote:
> 
> do you have the network configured to be available to all users? If
> not,
> perhaps closing the lids makes the network drop, whereas enabling
> that
> option might prevent
> 
> I haven't seen this, so I'm only guessing,... I have my laptop set to
> allow that, and it doesn't have the problem, so who knows
> 
> -- 

Doesn't make a difference.

Thanks,

billo
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Re: Network dies on laptop lid closure

2017-07-18 Thread William Oliver



On Tue, 2017-07-18 at 15:28 +0200, Sylvia Sánchez wrote:
> Hello,
> I have the same but I just don't close the lid and let it working
> alone. I mean, if it hibernates or even if it suspends, of course
> wifi will be turned off. So your options are not
> hibernating/suspending the computer or not closing the lid.
> Hope this helps you.
> 
> Regards,
> Sylvia
> 
> 
> 
> 

Yeah, that's what I'm doing now -- just leaving the lid up.  Thanks,

billo

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Re: Network dies on laptop lid closure

2017-07-18 Thread William Oliver

On Tue, 2017-07-18 at 22:03 +0800, Ed Greshko wrote:
> [snip]
> On 07/18/17 20:59, William Oliver wrote:
> Since it works for me, and I think we have similar settings, I don't
> think I've been
> much help.   Is there, perhaps, a BIOS setting?
> 
> 

No, that helps.  It means that it's not default-broken :-) I think I'll
install another desktop manager, gnome or  xfce or something, and see
if that changes anything.  That might tell me if it's a KDE thing...

billo
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Network dies on laptop lid closure

2017-07-18 Thread William Oliver


I'm running Fedora 26 on a slightly old HP laptop using KDE.  One minor
irritation is that whenever I close the lid of the laptop, the network
turns off -- both wifi and wired.

I do a lot of downloads.  I like to start one, close the lid, and set
the machine aside while I do other tasks.  But I can't, because the
network turns off.

A quick search using Google indicates that this is a recurrent issue. 
The solutions I've tried are;

1) Use the power management GUI in KDE system settings to set "Button
events handling -> When laptop lid closed -> Do nothing"

This stopped the machine from going into hibernation, but the network
still turned off.

2) Edited /etc/systemd/logind-conf to set 

HandleLidSwitch=ignore

and, when that didnt' work after reboot, I added:

3) LidSwitchIgnoreInhibited=no
 
even though I'm not sure what that does. That didn't work either.

Any help would be appreciated.

This was an issue with Fedora 25, too, but not Fedora 24.  I never got
around to dealing with it in 25 because of time issues.

Thanks!

billo


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Re: Do I need KDE??

2017-07-17 Thread William Oliver

On Mon, 2017-07-17 at 20:06 +, Beartooth wrote:
>   I run F26 with MATE. I use Konqueror for man pages, and K3B 
> sometimes. (Past experience has been that one of Brasero, K3B, or
> one 
> other (I'll think of it ...) will normally burn any CD or DVD I may
> want, 
> but often I can't tell in advance which.) I can't think of anything
> else 
> from KDE that I often launch knowingly.
> 
>   So I get lists like today's from dnf upgrade, which had a very 
> long list of kf5-* entries (even though it saw nothing this morning),
> and 
> can't help wondering 
> 
>   What other things from KDE might I be using without knowing
> it? 
> 
>   IfI really use it as little as I think, does it really make
> sense 
> to keep KDE installed??
> 
> 

I had a similar experience with Gnome.  I'm a KDE user, but I use
occasional gnome apps, and found myself downloading a zillion things
just to use those apps.

I used to worry about it, back in the days of 100 GB hard drives.  But,
you know, now that your average laptop hold a terrabyte or more, I
figure that adding a few hundred megs of stuff I rarely use is worth
the convenience.  The real estate on the drive is pretty cheap, now.

billo
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Re: [SOLVED]How would this bug be classified in bugzilla.

2017-07-17 Thread William Oliver

On Mon, 2017-07-17 at 12:15 +0900, Mamoru TASAKA wrote:
> [snip]

> Such "assert" message is embedded at compilation time, so even
> if you don't have header file installed at runtime, such
> message can be generated (see man 3 assert).
> 
> I guess you are seeing
> https://bugzilla.redhat.com/show_bug.cgi?id=1460400
> I can confirm this message when both blender-2.78c-4.fc26.x86_64
> and beignet-1.3.1-2.fc26.x86_64 are installed.
> 
> Try updating beignet to 1.3.1-3.git20170622.36f6a8b.fc26 .
> 
> Regards,
> Mamoru
> 

That fixed it!   Thanks.

billo
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Re: How would this bug be classified in bugzilla.

2017-07-16 Thread William Oliver

On Mon, 2017-07-17 at 09:45 +0800, Ed Greshko wrote:
> On 07/17/17 09:30, William Oliver wrote:
> > On Mon, 2017-07-17 at 09:13 +0800, Ed Greshko wrote:
> > > [snip]
> > > 
> > > 
> > > I do not have
> > > 
> > > /usr/include/llvm/Support/Casting.h
> > > 
> > > on my system.  Try erasing llvm-devel since...
> > > 
> > > [egreshko@meimei .config]$ dnf whatprovides
> > > /usr/include/llvm/Support/Casting.h
> > > Last metadata expiration check: 2:19:22 ago on Mon 17 Jul 2017
> > > 06:51:45 AM CST.
> > > llvm-devel-4.0.0-2.fc26.i686 : Libraries and header files for
> > > LLVM
> > > Repo: fedora
> > > 
> > > llvm-devel-4.0.0-2.fc26.x86_64 : Libraries and header files for
> > > LLVM
> > > Repo: fedora
> > > 
> > > 
> > 
> > Thanks, but I do not have llvm-devel installed:
> > 
> > 
> > .
> > [oliver@localhost ~]$ sudo dnf list llvm* | more
> > 
> > Last metadata expiration check: 0:42:23 ago on Sun 16 Jul 2017
> > 08:44:06
> > PM EDT.
> > Installed Packages
> > llvm-libs.x86_64   4.0.0-
> > 2.fc26@anaconda
> > Available Packages
> > llvm.i686  4.0.0-
> > 2.fc26fedora   
> > llvm.x86_644.0.0-
> > 2.fc26fedora   
> > llvm-devel.i6864.0.0-
> > 2.fc26fedora   
> > llvm-devel.x86_64  4.0.0-
> > 2.fc26fedora   
> > ...  {and a zillion more}
> > 
> > Ah well,  I guess I'll just go back to watchine Game of Thrones...
> > 
> 
> OK, but you do have /usr/include/llvm/Support/Casting.h yes?  So,
> then
> 
> rpm -qf  /usr/include/llvm/Support/Casting.h
> 
> returns what?


Oddly, it's not there:

[oliver@localhost ~]$ sudo rpm -qf  /usr/include/llvm/Support/Casting.h
[sudo] password for oliver: 
error: file /usr/include/llvm/Support/Casting.h: No such file or
directory

[oliver@localhost ~]$ pushd /usr/include
/usr/include ~
[oliver@localhost include]$ ls | grep llvm
[oliver@localhost include]$ 
[oliver@localhost include]$ ls | grep Casting
[oliver@localhost include]$ 

Thanks for the thought.

billo
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Re: How would this bug be classified in bugzilla.

2017-07-16 Thread William Oliver

On Mon, 2017-07-17 at 09:13 +0800, Ed Greshko wrote:
> [snip]
> 
> 
> I do not have
> 
> /usr/include/llvm/Support/Casting.h
> 
> on my system.  Try erasing llvm-devel since...
> 
> [egreshko@meimei .config]$ dnf whatprovides
> /usr/include/llvm/Support/Casting.h
> Last metadata expiration check: 2:19:22 ago on Mon 17 Jul 2017
> 06:51:45 AM CST.
> llvm-devel-4.0.0-2.fc26.i686 : Libraries and header files for LLVM
> Repo: fedora
> 
> llvm-devel-4.0.0-2.fc26.x86_64 : Libraries and header files for LLVM
> Repo: fedora
> 
> 

Thanks, but I do not have llvm-devel installed:

.
[oliver@localhost ~]$ sudo dnf list llvm* | more

Last metadata expiration check: 0:42:23 ago on Sun 16 Jul 2017 08:44:06
PM EDT.
Installed Packages
llvm-libs.x86_64   4.0.0-
2.fc26@anaconda
Available Packages
llvm.i686  4.0.0-
2.fc26fedora   
llvm.x86_644.0.0-
2.fc26fedora   
llvm-devel.i6864.0.0-
2.fc26fedora   
llvm-devel.x86_64  4.0.0-
2.fc26fedora   
...  {and a zillion more}

Ah well,  I guess I'll just go back to watchine Game of Thrones...

billo
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How would this bug be classified in bugzilla.

2017-07-16 Thread William Oliver

I'd like to submit a bug to bugzilla, but I don't know what
classification it would be.  A suggestion would be appreciated.

Here's the bug:

I use Blender (the 3D modeling program) extensively.  It runs fine on
fedora 25.  In fedora 26, it crashes.  The following error appears on
my terminal:

If I run the blender using the package (e.g. sudo dnf install blender),
and run it, I get:

> [oliver@localhost ~]$ blender

blender: /usr/include/llvm/Support/Casting.h:236: typename
llvm::cast_retty::ret_type llvm::cast(Y*) [with X =
llvm::CompositeType; Y = llvm::Type; typename llvm::cast_retty::ret_type = llvm::CompositeType*]: Assertion `isa(Val) &&
"cast() argument of incompatible type!"' failed.
Aborted (core dumped)

If I download it directly from blender.org and install it locally, I
get:

[oliver@localhost blender-2.78c-linux-glibc219-x86_64]$ ./blender

found bundled python: /home/oliver/blender-2.78c-linux-glibc219-
x86_64/2.78/python
blender: /usr/include/llvm/Support/Casting.h:236: typename
llvm::cast_retty::ret_type llvm::cast(Y*) [with X =
llvm::CompositeType; Y = llvm::Type; typename llvm::cast_retty::ret_type = llvm::CompositeType*]: Assertion `isa(Val) &&
"cast() argument of incompatible type!"' failed.
Aborted (core dumped)


Everything worked fine in fedora 25.

Thanks!

billo
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Re: attempts to hack in?

2017-07-02 Thread William Oliver

On Sat, 2017-07-01 at 19:24 -0700, Joe Zeff wrote:
> 
> Even better, use a LiveUSB to create a working Fedora system on a
> flash 
> drive, create a set of ssh keys for it and when you're using a
> foreign 
> system, boot from that drive so that you don't have to worry about 
> having your key end up on somebody else's box.  Of course, you have
> to 
> make sure that it's OK with the box's owner, but it's probably the 
> safest way to handle it.
> ___
> 

I do that all the time (except for the part about getting the remote
ssh thing to work right).  Instead of a flash drive, though, I use one
of those little portable 1TB drives.  They're too big for a pocket, but
fit easily into a backpack/carry-on/attache case.  That way I have
everything that's on my laptop, as well as an always-accessible recent
backup.

billo
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Re: attempts to hack in?

2017-07-01 Thread William Oliver

On Fri, 2017-06-30 at 18:35 -0700, Rick Stevens wrote:
> 
> 
> Uh, mount the USB stick somewhere and use something like:
> 
>   ssh -i /path/to/usb/stick/name-of-your-identity-file user@host
> 
> e.g.
> 
>   mkdir ~/usbstick
>   mount /dev/sdb1 ~/usbstick
>   ssh -i ~/usbstick/my_id_rsa_file r...@somehost.tld
> 
> I believe the identity file must still have the right permissions
> (0600
> or "rw---" and that it's the identity file, NOT the public
> identity
> key file.

Thanks.  I'll give it another try.  It may be that I'm just not patient
enough.  A couple of years ago, I set up a surveillance camera or two
for a friend and wanted to make them sftp the images to a server. I
swear to God I could never get it to authenticate.  After about three
hours I threw up my hands and had it send encrypted files by email. 
Which then meant I had to write a bunch of scripts to get them and put
them in the right place.  Not one of my more productive afternoons.

But, there was a limited amount of work I was willing to do so that a
neighbor could watch deer in her backyard on her cellphone...

billo
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Re: attempts to hack in?

2017-07-01 Thread William Oliver

On Sat, 2017-07-01 at 09:31 +0800, Ed Greshko wrote:
> On 07/01/17 09:14, William Oliver wrote:
> > On Sat, 2017-07-01 at 10:23 +1000, Cameron Simpson wrote:
> > > [snip]
> > > 
> > > If you cannot set up a key on the foreign machine ahead of time,
> > > yes
> > > stick your 
> > > "travelling" key on a USB stick and use it. That way you can
> > > revoke
> > > it if 
> > > somehow it gets comprimised.
> > > 
> > > Cheers,
> > > Cameron Simpson <c...@zip.com.au>
> > > 
> > 
> > You know, I don't like to sound stupid, but I've tried to set this
> > up,
> > and I've never gotten it to work reliably. Inevitably I get
> > frustrated
> > and go back to password based ssh.  Is there an Idiot's Guide to
> > setting this up somewhere?
> > 
> 
> Not sure where you are getting "stuck" but you can google "using ssh
> keys' for some
> pointers.  Or you can go to
> https://docs.fedoraproject.org/en-US/Fedora/15/html/Deployment_Guide/
> s2-ssh-configuration-keypairs.html
> .  It is "old" but still valid.
> 
> What you need to take with you is your private key (id_rsa).  But if
> you use a
> "traveling" id it should have been created with a password in the
> case where you
> leave it unattended.  :-)
> 

Thanks.  Well, I'll give it another shot.

billo
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Re: attempts to hack in?

2017-06-30 Thread William Oliver

On Sat, 2017-07-01 at 10:23 +1000, Cameron Simpson wrote:
> [snip]
> 
> If you cannot set up a key on the foreign machine ahead of time, yes
> stick your 
> "travelling" key on a USB stick and use it. That way you can revoke
> it if 
> somehow it gets comprimised.
> 
> Cheers,
> Cameron Simpson 
> 

You know, I don't like to sound stupid, but I've tried to set this up,
and I've never gotten it to work reliably. Inevitably I get frustrated
and go back to password based ssh.  Is there an Idiot's Guide to
setting this up somewhere?

billo
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Re: Thanks, everyone, for your comments Re: CIA Outlaw Country attack against CentOS / Rhel (and Fedora?) Is this credible?

2017-06-30 Thread William Oliver

On Thu, 2017-06-29 at 19:34 -0700, stan wrote:
> The consensus seems to agree with me, that this is a minor threat
> as threats go.
> 
> I thought I was paranoid about security.  But after the comments in
> this
> thread, I think maybe I'm not paranoid enough.  That the IT security
> professionals are paranoid enough to cover their cameras? If they're
> that worried they're vulnerable, it's a good bet I should be.  :-)
> 

Oh, and if you really want to be paranoid, one of my friends' first
jobs was to work for a contractor that worked for the federal
government.  His job (among other things) was to break into people's
houses and install keyloggers on their computers.  He was always amused
by all this firewall and virus detection stuff; it doesn't mean
anything when you have a keylogger, a warrant, a flashlight, and hands
on a box.

billo
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Re: Thanks, everyone, for your comments Re: CIA Outlaw Country attack against CentOS / Rhel (and Fedora?) Is this credible?

2017-06-29 Thread William Oliver

On Thu, 2017-06-29 at 19:34 -0700, stan wrote:
> The consensus seems to agree with me, that this is a minor threat
> as threats go.
> 
> I thought I was paranoid about security.  But after the comments in
> this
> thread, I think maybe I'm not paranoid enough.  That the IT security
> professionals are paranoid enough to cover their cameras? If they're
> that worried they're vulnerable, it's a good bet I should be.  :-)
> 

The thing that amazes me about the Window and Mac worlds is that people
never seem to wipe their boxes.  I know people who run their machines
for four or five years without ever doing a clean reinstall.  I worked
at a place that ran Windows XP well beyond its out of service date --
going as far as buying separate service contracts to keep it going.

For *eight* years, as far as I know, the desktop box in my office never
had its disk wiped.  Now, sure, I only used it for very limited stuff,
but still, the entire organization -- hundreds and hundreds of machines
-- was like that.

The interesting thing was they they were locked into it by the
government.  This was a healthcare organization, which dealt in private
health data.  Their case management system had FDA approval to run on
Windows XP, but did not have FDA approval for running on Win 7 or Win
10.  I was told it would cost around 15 million dollars and take two
years to go through the FDA approval process -- by which time the
validation would already be obsolete.  I *think* they were going to try
to skip all the way to Win 10, but the validation process was always
running behind the release of the new Windows.

It amazed me -- the FDA, by it's byzantine rules for validation and
such for protected health information, made it impossible for companies
to update their software in a timely manner in order to protect it.

I never actually tried to do an intrusion -- why ask for the hassle.
It's hard to do without leaving fingerprints if people are watching
hard enough.

owever, once in extremis I *did* unplug my desktop from the net and
boot up with a live fedora distro so I could use some linux software I
had. I had left my laptop at home that day, and needed to do some
processing on some images. I kept a bootable disk image of a recent
backup in my backpack all the time back then, so I could go places with
just a portable 1 TB drive instead of my laptop.   It came up fine, and
the Windows disk was not encrypted...

billo
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Re: CIA Outlaw Country attack against CentOS / Rhel (and Fedora?) Is this credible?

2017-06-29 Thread William Oliver

On Thu, 2017-06-29 at 16:56 -0700, T.C. Hollingsworth wrote:
> > Prerequisites(S//NF) 
> > The target must be running a compatible 64-bit version of
> CentOS/RHEL 6.x (kernel version 2.6.32).
> This doesn't even work on Fedora.
> Fedora kernels move too fast for them to keep up with binaries; they
> would have to use the source and rebuild it akmod style on every
> kernel upgrade. They aren't doing this; they want to keep their stuff
> secret.
> 
> It could, however, have been ported to RHEL7 (and not leaked).
> > (S//NF) The Operator must have shell access to the target.
> So you have to already have a vulnerability or have a server
> administrator in the CIA's pocket. This is just a rootkit they use
> once they already have the keys to kingdom.
> 

I went to a conference not too long ago with some feds who were in the
business of breaking into computers (not the CIA).  They were pretty
cocky.  But, really, my impression is that they pretty much count on
someone in an organization doing something stupid.  And it's a good bet
-- if you have an organization of 500 people, the chances are very good
that at least *one* of them will do something that will compromise your
system.  I used to do security for a federal network of mostly
scientists, who largely considered security nothing more than a huge
imposition on their ability to get work done.  I had to be *very*
careful to make sure that my policies and actions were not overly
demanding on them, else they would start actively seeking ways to get
around things.  

The difference between my colleagues and some of the "hackers" I have
known is that not only did these guys believe they could break into
anything, but they also assumed that their computers were compromised
unless proven otherwise.  It was pretty funny.  You could tell the IT
guys and gals at the meeting easily.  They were the ones with tape over
the cameras on their laptop.

Personally, I assume that my computers are always on the verge of being
compromised.  It's one of the things I like about fedora -- I always do
a clean install when a new version comes out, and I occasionally to a
clean reinstall midway through.  That basically means I wipe my machine
every three months.  It won't stop people from breaking in, but it
hampers long term surveillance.

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Re: Off topic: Does anybody know how to read a .ptx (E-Transcript) document file?

2017-06-28 Thread William Oliver

On Wed, 2017-06-28 at 14:13 -0700, Mike Wright wrote:
> On 06/28/2017 11:28 AM, Doug wrote:
> > 
> > It won't let you download a Windows iso unless you are running
> > Windows,
> > and it sort of looks like it will only let you download the same
> > kind of
> > windows (7,8,10) as you already have. What good is that?
> 
> I don't know where you tried to get it from.  Just downloaded it onto
> an 
> Ubuntu box; no questions asked except languages preferred and 32/64.
> 

I'm starting to get a little thing on my screen complaining that my
copy of Windows isn't "activated."  Everything still runs, though.  It
tells me to go to Settings, where there's a line for activation.  If I
click on it, it complains that I don't have a valid license or product
key, and that I'm at risk for viruses and other security threats.

billo
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Re: Off topic: Does anybody know how to read a .ptx (E-Transcript) document file?

2017-06-20 Thread William Oliver

On Tue, 2017-06-20 at 11:10 -0700, stan wrote:
> On Tue, 20 Jun 2017 13:44:20 -0400
> William Oliver <ven...@billoblog.com> wrote:
> 
> > Sorry to bother the fedora list, but I'm not sure where to ask.  I
> > have a trial transcript in .ptx format I need to look at.  Does
> > anybody know of any tool in Fedora/Linux that can read these?
> 
> I think you need to sharpen your search-foo.  :-)
> 
> Summary - probably a text file viewable in any text editor, even
> less.
> 
> [snip]

Nope.  Yeah, I saw that site.  It's not readable in vim, kate, more,
less, etc.  Kate complains of unrecogizable encoding.  Gedit complains 
of invalid characters.  I was kind of hoping to be able to look at in
Linux, and not move to Windows and Notepad++.

billo
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Off topic: Does anybody know how to read a .ptx (E-Transcript) document file?

2017-06-20 Thread William Oliver


Sorry to bother the fedora list, but I'm not sure where to ask.  I have
a trial transcript in .ptx format I need to look at.  Does anybody know
of any tool in Fedora/Linux that can read these?

Thanks,

billo
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Does anybody know of a fedora pkg for emergent neural network software?

2017-05-10 Thread William Oliver


Does anybody know of an rpm for emergent for fedora? The emergent site
mentions an apt package for ubuntu/debian, but nothing for fedora.

Site: https://grey.colorado.edu/emergent/index.php/Main_Page

And, as an aside, does anybody have any faves for open source neural
network software or libraries that run(s) well on fedora systems?



Thanks,

billo
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Re: The Case of the Disappearing Scanner

2017-04-21 Thread William Oliver

I have an HP color laser writer/scanner that I connect to via wireless.
 I find that it becomes unusable if I don't use it after awhile.  I
went over to the room where the scanner is and noticed that it worked
great until the power saving feature turned on.  My problem is that my
linux box can talk fine to the printer, but cannot wake it up once it's
gone into that powersaver mode.  

If I power cycle the printer or do something else to wake it up, then
it can talk to my linux box until it is quiet for a few minutes.

When I boot in Windows, this isn't a problem.  I've decided that the
linux driver is great for giving printing commands, but not so great
for all this power management stuff.

billo

On Fri, 2017-04-21 at 13:37 +0100, Patrick O'Callaghan wrote:
> I have a Brother DCP-7055W all-in-one laser printer and scanner,
> connected by Wifi to my LAN. The printer works perfectly, and the
> scanner worked at least up until a couple of weeks ago when I last
> used
> it. Now, it seems to have disappeared. Both simple-scan and scanimage
> report no scanners found.
> 
> I've reinstalled the RPM package downloaded from brother.com. I've
> rebooted Fedora (you never know). I've also checked that the scanner
> itself is working (from a Windows laptop).
> 
> What else can I try?
> 
> poc
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Re: Running a laptop with lid shut

2017-04-17 Thread William Oliver


I run KDE, not Gnome, so I don't know how much this translates, but in
KDE you can go to System Settings -> Power Management -> When laptop
lid is closed and choose "do nothing."  You have to set it for all
power status categories (AC, Battery, Low Battery).
Works for me.  I used to know how to tweak this by modifying a file,
but that was a few years ago, and I'm sure it's changed.  I've gotten
lazy and just use the GUI for it, now.
billo
On Mon, 2017-04-17 at 09:36 -0600, InvalidPath wrote:
> This morning I had some time spent trying to get my Dell XPS 13 9550
> to output to three displays.  Using the thunderbolt/USB-C Dell 3100
> dock, and HDMI cable/monitor and a DP to mini-DP/monitor.  But my
> question is, during this fight, I attempts to run the laptop with the
> lid shut.  Outputting to the two external displays, powered up by
> power button on the dock.  Long story short it did not work.. but
> what's weird is that I raised the lid ever so slightly and could tell
> that it was on.Now if the system senses the lid when it shuts to
> suspend.. why not in this case?  Could this have anything to do with
> the hybrid graphics?
> 
> Thanks!
> 
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Re: Really?

2017-04-05 Thread William Oliver

On Wed, 2017-04-05 at 14:30 -0700, Joe Zeff wrote:
> On 04/05/2017 01:31 PM, JD wrote:
> > 
> > We have seen the enemy looking back at us in in the mirror :) :)
> 
> Pogo probably said it best: "We have met the enemy and he is us."
> 

Heh.  When I was in the Army, I worked with some civilian agencies,
including the FBI.  Some years later, after I had left the military and
was working at an academic institution, I had occasion to call a friend
of mine at the FBI because we were both going to the same meeting and I
thought I might be fun to touch base after all these years.

I called him from a phone in a new office I had -- the number was
screened both by my department and by the university.  People were
supposed to only see the main number of the university, not my new
office number.

Ring ring ring...

Him:  Hi Bill!  Haven't heard from you in years!

Me:  Dude!  How in hell did you know it was me?

Him:  Bill, we're the FBI.  We always know where you are.

Me: Damn.

billo

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Is there a way to stop ipv6 leakage without turning off ipv6?

2017-04-01 Thread William Oliver


I'm using Fedora 25 on an HP laptop with KDE.  I commonly use a VPN
service, but it leaks ipv6 addresses.  This seems to be a common
problem with VPN and ipv6, from what I've read on the internet.

So, I've turned off ipv6 for my wireless interface, and that seems to
solve the problem.  However, I just can't help but think that this will
eventually cause a problem somewhere.

Is there a better solution for ipv6 leakage with a vpn on Fedora 25
other than just turning it off?

Thanks,

billo
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Re: Can anyone explain this Evolution behavior to me?

2017-03-22 Thread William Oliver

On Wed, 2017-03-22 at 11:53 +, Patrick O'Callaghan wrote:
> On Wed, 2017-03-22 at 07:43 -0400, William Oliver wrote:
> > I'm just trying to understand why running it in GNOME would fix it
> > in
> > KDE.  Anybody know?
> 
> No idea, but the Evolution list might be a better place to ask as
> it's
> not limited to Fedora. See https://mail.gnome.org/mailman/listinfo/ev
> ol
> ution-list
> 
> poc
> 

Thanks for the pointer.

billo
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Can anyone explain this Evolution behavior to me?

2017-03-22 Thread William Oliver


I'm running Fedora 25, with current upgrades, on an HP laptop (uname
-a: 4.9.14-200.fc25.x86_64 #1 SMP Mon Mar 13 19:26:40 UTC 2017 x86_64
x86_64 x86_64 GNU/Linux)

I normally use KDE 5 as my desktop, but I use Evolution to read mail.

Recently, and shortly after a recent "sudo dnf upgrade," I ran into a
problem in which I could not reply to emails in Evolution.  I could
fetch and read mail, but when I tried to reply, either the window would
come up greyed out and I could not enter text, or I could type a few
letters and it would hang.

This repeated for a couple of days, including various reboots and such.
 I didn't get around to running it from a terminal, so I don't have
error messages there, but there were no messages in any logs.

Then I decided to see if the same error occurred in GNOME, since it's a
 GNOME program.  I brought up GNOME, and it worked fine.  Hmmm

So, I logged in using KDE to run it from terminal and look for error
messages -- and the problem went away!  Now it works fine.

I'm just trying to understand why running it in GNOME would fix it in
KDE.  Anybody know?


billo
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Re: Tor browsers

2017-03-17 Thread William Oliver

On Fri, 2017-03-17 at 14:52 -0600, JD wrote:
> How much effort is involved in setting up tor port(s) and running
> tor 
> browsers?
> 
> I have never done it to-date, and would like some installation /
> setup / 
> configurations links.


I'll also add, I don't use Tor as much as I'd like because I get
frustrated at the latency.  It's maddening sometimes.

billo
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Re: Tor browsers

2017-03-17 Thread William Oliver

On Fri, 2017-03-17 at 14:52 -0600, JD wrote:
> How much effort is involved in setting up tor port(s) and running
> tor 
> browsers?
> 
> I have never done it to-date, and would like some installation /
> setup / 
> configurations links.
> 

I just did it, and it was easy.  Just go to the Tor site, download the
the software and run it from your own home directory.  It will do the
routing and such automatically.  There's essentially no configuration,
unless you want to tweak with it yourself.

I also did it using the fedora repository (e.g. tor and tor-browser-
launcher).  It also worked fine.

I use the repository Tor for regular Tor browsing, and added FoxyProxy
to my local copy for doing I2P stuff.

billo
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Re: RANT: installing fedora is now a real punishment!

2017-02-01 Thread William Oliver

On Wed, 2017-02-01 at 14:34 +0100, François Patte wrote:
> [snip]
> If I ask passwd, I have 1 second to type the password before falling
> back to prompt... So I can't type anything!
> 
> WHAT A MESS!
> 
> 

Well, here's what Fedora says to do:

https://docs.fedoraproject.org/en-US/Fedora/23/html/System_Administrato
rs_Guide/sec-Changing_and_Resetting_the_Root_Password.html

Sometimes these guidelines are a bit outdated, but it's a starting
point, I guess.

Personally, when I do an install, I do it in stages.  I'll do a minimal
installation, and then install all my software, environments, etc.
later.  

That way, if something in the basic install screws up, I can do a
reinstall more quickly -- in 15-30 mins or so.  I used to try to
install everything at the beginning, but ended up with having to repeat
hour to 2 hour long installs.

As an aside, my experience has been the opposite of yours.  I did an
upgrade that went well.  About a week later, my dog knocked my laptop
off the table, which caused physical damage to the hard drive.  My box
wouldn't boot -- many system files were damaged.

So, I downloaded a small live version, and booted up.  I was able to
backup most of my home directory, and then did and fsck -c on the
encrypted drive.  About 2500 blocks were damaged, but it managed to
rewrite the bad block inode.

Then I installed fedora 25 from a live distro -- and it came up great. 
It took about 20 mins to install (and then an hour and a half to
install all the software and such).

billo
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[SOLVED] Re: problem upgrading from 24 to 25

2016-11-23 Thread William Oliver


No joy.  Dnf won't let me install the F25 rpmfusion nonfree because it
requires that 25 is installed.  It's a Catch-22.

So, I just removed rpmfusion nonfree as a repository, and it upgraded
fine.  I vaguely remember something like this with 24 as well -- having to 
remove some third party repositories -- but I don't remember which ones.  
Anyway, I added the nonfree repo after upgrade without a problem.

I wonder why it choked on the nonfree repository, but the free
repository went through fine...


billo


On Wed, 2016-11-23 at 10:33 +0800, Outback Dingo wrote:
> On Wed, Nov 23, 2016 at 9:54 AM, William Oliver <ven...@billoblog.com
> > wrote:
> > 
> > Help!
> > 
> > I decided to try an upgrade from 24 to 25 instead of a clean
> > install,
> > but have run into a problem.  All the filed downloaded fine, but
> > the
> > last reboot step gives me an error.
> > 
> > The error I get is:
> > 
> > 
> > 
> > warning: /var/lib/dnf/system-upgrade/rpmfusion-nonfree-appstream-
> > data-
> > 25-3.fc25.noarch.rpm: Header V4 RSA/SHA1 Signature, key ID
> > fa7a179a:
> > NOKEY
> > Importing GPG key 0x96CA6280:
> >  Userid : "RPM Fusion nonfree repository for Fedora (24)
> >  > -build...@lists.rpmfusion.org>"
> >  Fingerprint: DD75 25B6 184B 0512 AA8C B100 2E59 159B 96CA 6280
> >  From   : /etc/pki/rpm-gpg/RPM-GPG-KEY-rpmfusion-nonfree-
> > fedora-25
> > Is this ok [y/N]: y
> > Key imported successfully
> > Import of key(s) didn't help, wrong key(s)?
> > The downloaded packages were saved in cache until the next
> > successful
> > transaction.
> > You can remove cached packages by executing 'dnf clean packages'.
> > Error:
> > 
> > 
> > Public key for rpmfusion-nonfree-appstream-data-25-
> > 3.fc25.noarch.rpm is
> > not installedFailing package is: rpmfusion-nonfree-appstream-data-
> > 25-
> > 3.fc25.noarch
> >  GPG Keys are configured as: file:///etc/pki/rpm-gpg/RPM-GPG-KEY-
> > rpmfusion-nonfree-fedora-25
> > 
> > oliver:Laptop 20:48 EST >> sudo dnf system-upgrade reboot
> > Error: system is not ready for upgrade
> > 
> > 
> > 
> > what do I need to do?
> > 
> 
> 
> manually install rpmfusion-nonfree-appstream-data-25-
> 3.fc25.noarch.rpm
> and run it again
> 
> is not installedFailing package is: rpmfusion-nonfree-appstream-data-
> 25-
> 3.fc25.noarch
> 
> > 
> > Thanks!
> > 
> > billo
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problem upgrading from 24 to 25

2016-11-22 Thread William Oliver


Help!

I decided to try an upgrade from 24 to 25 instead of a clean install,
but have run into a problem.  All the filed downloaded fine, but the
last reboot step gives me an error.

The error I get is:

                                                                       
                               
warning: /var/lib/dnf/system-upgrade/rpmfusion-nonfree-appstream-data-
25-3.fc25.noarch.rpm: Header V4 RSA/SHA1 Signature, key ID fa7a179a:
NOKEY
Importing GPG key 0x96CA6280:
 Userid : "RPM Fusion nonfree repository for Fedora (24) "
 Fingerprint: DD75 25B6 184B 0512 AA8C B100 2E59 159B 96CA 6280
 From   : /etc/pki/rpm-gpg/RPM-GPG-KEY-rpmfusion-nonfree-fedora-25
Is this ok [y/N]: y
Key imported successfully
Import of key(s) didn't help, wrong key(s)?
The downloaded packages were saved in cache until the next successful
transaction.
You can remove cached packages by executing 'dnf clean packages'.
Error: 


Public key for rpmfusion-nonfree-appstream-data-25-3.fc25.noarch.rpm is
not installedFailing package is: rpmfusion-nonfree-appstream-data-25-
3.fc25.noarch
 GPG Keys are configured as: file:///etc/pki/rpm-gpg/RPM-GPG-KEY-
rpmfusion-nonfree-fedora-25

oliver:Laptop 20:48 EST >> sudo dnf system-upgrade reboot
Error: system is not ready for upgrade



what do I need to do?


Thanks!

billo
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Re: Recover from unintended dd

2016-11-21 Thread William Oliver

On Mon, 2016-11-21 at 07:26 -0500, fred roller wrote:
> On Mon, Nov 21, 2016 at 6:30 AM, Sam Varshavchik  om> wrote:
> > > Any help/clue to get the hard disk recovered is highly
> > > appreciated.
> > > 
> >  
> 
> For a full recovery you can research some advance software which
> *may* rebuild.  The names escape me atm but it does exists and you
> need to be comfortable with some advanced knowledge; or pay for a
> service.  The other solution is to install "testdisk" which has a
> program called "photorec" and let it grab what files it can.  Though
> designed to recover pics it will recover most coherent files it
> recognizes, which is quite a bit. The caveat is that it will have no
> structure and the filenames will be gone.  You will have file
> extensions to identify most but you will have the data to
> rebuild/rename by hand.  Question becomes: How important is the
> data?  Otherwise, as Sam pointed out, the disk is roached and re-
> partitioning/reformatting is in order with lessons learned.
> 
> -- Fred
___

Yeah, I went through this about 10 years ago.  Tools have 
changed since then, of course, but as I remember, I used 
testdisk and something called the "Trinity Rescue Kit."  I don't
 know if it's still around. I had mostly trashed images for a court
case I was working on.  I got about 70% of my data back, and it 
took me many hours of looking at files by hand.

There's also extundelete.  I don't know if it will work when 
the entire filesystem has been trashed, but it may be worth
a try. 

Lessons learned is right.  

rsync is your friend.  Now that storage has become so cheap, I always
maintain two backups of my data -- one I carry with me on a portable 
hard drive, and the other I keep locked up at home.

billo
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Re: OT: determining when a pdf file was created/by whom

2016-11-16 Thread William Oliver


On Tue, 2016-11-15 at 23:37 -0800, Samuel Sieb wrote:
> 
> > 
> That information is not necessarily available, but if you right-
> click 
> the document in Nautilus, choose properties and go to the Document
> tab, 
> it will show you the information that is available.
> 

A command-line tool might be pdfinfo -- part of the xpdf package.

billo
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