Linux-Misc Digest #611, Volume #25 Tue, 29 Aug 00 12:13:01 EDT
Contents:
Re: opengl on sgi linux machines? (Andy Nelson)
allow certain tcpdump privileges (CarlG)
Re: Free ISPs? ("Sjoerd Langkemper")
Re: LILO Died - Partition Not Found (Brian)
Re: Linux, XML, and assalting Windows (The Ghost In The Machine)
Newbie, Help, CLI Commands, ("Martin Vipond")
Re: pppd CHAP and BTConnect (Bill Unruh)
Re: why I'm in a bad mood ("Stuart D. Gathman")
Re: Script from crontab doesn't work. ("Sjoerd Langkemper")
Re: Script from crontab doesn't work. ("Sjoerd Langkemper")
Re: Newbie, Help, CLI Commands, (Andreas Kahari)
Re: pppd CHAP and BTConnect (D'Arque Bishop)
hard drive partition table messed up! ([EMAIL PROTECTED])
Re: Free ISPs? ([EMAIL PROTECTED])
Re: From RedHat to SuSE: A simple question (Scott Alfter)
Re: opengl on sgi linux machines? (Arthur Corliss)
----------------------------------------------------------------------------
From: [EMAIL PROTECTED] (Andy Nelson)
Crossposted-To: comp.sys.sgi.admin
Subject: Re: opengl on sgi linux machines?
Date: 29 Aug 2000 15:04:28 GMT
Alexis Cousein ([EMAIL PROTECTED]) wrote:
: Thor Lancelot Simon wrote:
: >
: > In article <8oedm9$6he$[EMAIL PROTECTED]>,
: > Andy Nelson <[EMAIL PROTECTED]> wrote:
: > >Dan Stromberg ([EMAIL PROTECTED]) wrote:
: > >
: > >: I'm noticing that even tho intel/amd smokes mips in pure cpu
: > >: performance,
: > >
: > >Not on any code I've ever run.
: > >
: > >MIPS MHz x 2-3 = Intel MHz
: >
: > Considering that SGI's best "MIPS MHz" to date is, in fact, generally running
: > about 1/3 commodity "Intel MHz", there you go.
: On his code, perhaps -- there are enough codes where a 1 GHz PIII gets a
: handsome spanking by a MIPS R12KA-400 processor.
Although the newest cpu's of either mips or intel type that I have
access to are both somewhat dated (195MHzR10k's and 600MHz P3's), I still
think that my statement that intel cpus don't `smoke' mips cpus in pure
cpu performance is still valid. I think I meant to say that they were
relatively comparable in terms of what you could buy from your dealer.
I will be very interested in running my codes (CFD with SPH or with PPM,
for the cognoscenti amongst you) on faster cpu's of pretty much any type
(sometime in the future, when I get regular access to them). My guess is
that the overall performance of the mips line will beat the overall
performance of the intel line on such problems because of issues about
bandwidth to and from ram/cache and cpu. Perhaps that handsome spanking
will show up in that case, perhaps not...
Andy
--
Andy Nelson Max Planck Institute for Astronomy
[EMAIL PROTECTED] Koenigstuhl 17, Heidelberg, Germany
[EMAIL PROTECTED] D-69117
http://www.mpia-hd.mpg.de/homes/andy
------------------------------
From: CarlG <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.networking,alt.os.linux
Subject: allow certain tcpdump privileges
Date: Tue, 29 Aug 2000 11:39:06 -0400
How can I allow certain users to do a tcpdump on certain devices like
ppp0? I cant even get tcpdump to work so normal users can use it at
all. I made a copy of tcpdump to tdp and chowned and chmoded it but as
the users, I got the messages, socket: operation not permitted. I need
to allow certain tcpdumps for users because I have a program that
requires it. Thanks.
------------------------------
From: "Sjoerd Langkemper" <[EMAIL PROTECTED]>
Subject: Re: Free ISPs?
Date: Tue, 29 Aug 2000 15:25:16 GMT
"Keith Smith" <[EMAIL PROTECTED]> wrote:
> Are there any free ISPs that work with Linux [in Philadelphia]?
Don't all ISP's work with Linux?
Sjoerd
------------------------------
From: Brian <[EMAIL PROTECTED]>
Subject: Re: LILO Died - Partition Not Found
Date: Tue, 29 Aug 2000 08:31:45 -0700
This is a multi-part message in MIME format.
==============29781206A0924376F91CE9F2
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
> Have you tried installing an updated version of LiLo? I remember Slackware 3.4
> used to bomb out on me, with the same thing.
> http://judi.greens.org/lilo/download.shtml
> This new version avoids the 1024 cylinder thing, afaik, which also might be your
> problem.
> Phil.
Hi Phil,
I tried one more thing. I reinstalled and let Mandrake set up the default
partitions which broke up the partitions somewhat. LILO now appears to load into
the boot sector but doesn't get past LI on boot. The attachment (tmp.txt) shows
lilo.conf as it presently exists. Tmp2.txt shows the fdisk -l output.
I'm sure getting tired of watching the install screen but I don't want to boot from
floppy forever. Where might I get the new improved LILO?
Thanks again.
==============29781206A0924376F91CE9F2
Content-Type: text/plain; charset=us-ascii;
name="tmp.txt"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
filename="tmp.txt"
boot = /dev/hda
timeout = 50
prompt
message = /boot/message
default = linux
vga = normal
root = /dev/hda1
read-only
map=/boot/map
install=/boot/boot.b
keytable=/boot/us.klt
lba32
image = /boot/vmlinuz
label = linux
image = /boot/vmlinuz
label = failsafe
append = " failsafe"
other = /dev/fd0
label = floppy
unsafe
==============29781206A0924376F91CE9F2
Content-Type: text/plain; charset=us-ascii;
name="tmp2.txt"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
filename="tmp2.txt"
Disk /dev/hda: 128 heads, 63 sectors, 781 cylinders
Units = cylinders of 8064 * 512 bytes
Device Boot Start End Blocks Id System
/dev/hda1 * 1 429 1729696+ 83 Linux
/dev/hda2 430 781 1419264 85 Linux extended
/dev/hda5 430 492 253984+ 82 Linux swap
/dev/hda6 493 781 1165216+ 83 Linux
Disk /dev/hdc: 1 heads, 2147483647 sectors, 1 cylinders
Units = cylinders of 2147483647 * 512 bytes
==============29781206A0924376F91CE9F2==
------------------------------
From: [EMAIL PROTECTED] (The Ghost In The Machine)
Crossposted-To: alt.os.linux,comp.text.xml,comp.os.linux.setup,comp.os.linux.advocacy
Subject: Re: Linux, XML, and assalting Windows
Date: Tue, 29 Aug 2000 15:33:04 GMT
In comp.os.linux.advocacy, [EMAIL PROTECTED]
<[EMAIL PROTECTED]>
wrote
on Mon, 28 Aug 2000 22:09:42 -0700
<8ofguf$vpb$[EMAIL PROTECTED]>:
>
>paul snow <[EMAIL PROTECTED]> wrote in message
>news:CHGq5.21149$[EMAIL PROTECTED]...
>
>> Suppose the hard disk crashes. I can buy another, and assuming I can lay
>my
>> hands on all my CDs, I can rebuild my machine yet again (losing only my
>> unqiue work, if I failed to transfer it too to some external storage).
>And
>> I supply all the answers to all the decision points yet one more time.
>
>Are you in the habit of discarding you installation media when you may still
>need it in the future?
>
>Once you have everything installed the way you want it just make a backup
>copy of the installation and you are all set. Under unix we already have a
>couple of very complex and capable programs that can take care of the
>situation that you have painted here.
I will also note that Windows 95 doesn't appear to mind much if one
does something as simple-minded as:
cd /; tar czf /somewhere/c.tgz c
rm -rf /c/*
cd /; tar xzf /somewhere/c.tgz
which one might characterize as a particularly stupid, but effective,
disk defragmenter, assuming one mounts one's C: drive on /c, as I do,
and has sufficient disk space. The only things that gets lost are
the hidden and system bits, which Linux pretty much ignores anyway
(and so does Windows, apparently). Note: no warranties expressed
or implied if this futzes up your system. :-)
One would surmise that this is far more effective than Win95's
disk defragmenter, pretty as it otherwise might be. (However, I
have questions regarding defragmentation anyway, as new files are
created in the clear area, which might be all the way on the
other side of the disk.)
A few other things can be done to improve fragmenting even more,
especially if one replaces tar with cpio (which takes pathnames from
standard input -- pathnames can be sorted!) or lists the files
into a shell script using sed, sorts the script, then runs it.
>They can work on a local host or with
>the assistance of a couple of other very complex programs they can work
>across the network even with multiple hosts on opposite sides of the planet
>from each other. They can backup any filesystem and any storage device, not
>just the harddrive. They can be used on non-unix hosts by using a floppy
>based mini-unix installations. What are these two programs? They are "cat"
>and "dd". So do you really think preventing repeated reinstallations is so
>complex?
One might also mention rsh/ssh, rdist, tar and cpio, and NFS mounting.
There might even be a bru, as an add-on (I don't appear to have it).
What does Windows have? Explorer, COPY/S, XCOPY, and maybe a GUI
backup tool. Far less flexible, IMO. (Of course, one could also put
GNU Tar on WinNT -- but isn't that a form of cheating? :-) )
--
[EMAIL PROTECTED] -- insert random misquote here
------------------------------
From: "Martin Vipond" <[EMAIL PROTECTED]>
Subject: Newbie, Help, CLI Commands,
Date: Tue, 29 Aug 2000 11:30:35 -0400
I need to delete an entire directory with files and subdirectories. Is there
a command such as deltree?
Thanks
mjv
------------------------------
From: [EMAIL PROTECTED] (Bill Unruh)
Subject: Re: pppd CHAP and BTConnect
Date: 29 Aug 2000 15:44:22 GMT
In <8ogcm3$4cn$[EMAIL PROTECTED]> [EMAIL PROTECTED] writes:
>Just switched to BT connect unmetered access and trying to get our
>Slackware box to connect.
>Had the setup working previously with Demon and Ezesurf, but these
>didn't use CHAP.
>Having worked through various problems, I think the problem may be with
>the actual CHAP secrets file.
>BT aren't a lot of help concerning linux, but they did confirm that
>they use CHAP.
>My current CHAP secrets file contains
><my_BT_userid> * <my_BT_password>
>* <my_BT_userid> <my_BT_password>
Get rid of the second line, it is not needed or wanted. Some of the docs
talk about it but that is for symmetrical authentication ( where you
authenticate the far side ) and no ISP I have ever heard of will allow
themselves to be authenticated. Make sure tht you do NOT have any of the
options to ppp which refer to chap or pap in you options file or on your
pppd command line. Thos eall refer to you authenticating them and will
mess everything up.
Finally, if you want more help, (the above comments on your chap secrets
file should not be causing the problem) please post a debugging log. Or
read
axion.physics.ubc.ca/ppp-linux.html
for a step by step procedure for connecting and help in debugging the
logs.
------------------------------
From: "Stuart D. Gathman" <[EMAIL PROTECTED]>
Subject: Re: why I'm in a bad mood
Date: Tue, 29 Aug 2000 11:37:44 -0400
[EMAIL PROTECTED] wrote:
>
> 1) will you please try out the makefiles you ship on some system other
> than your own before you ship them? I'm really getting tired of getting
> halfway through a make, only to find that some program is not available on
> my system or some directory does not exist or your C code is non-standard.
For (economically) poor programmers, it is not always so easy to find
"another system" to try the make/install on. We're depending on *you*
to test it on "another system" - and report back any bugs :-) You did
report the bugs, didn't you?
--
Stuart D. Gathman <[EMAIL PROTECTED]>
Business Management Systems Inc. Phone: 703 591-0911 Fax: 703
591-6154
"Microsoft is the QWERTY of Operating Systems" - SDG
"Confutatis maledictis, flamis acribus addictis" - background song
for
a Microsoft sponsored "Where do you want to go from here?"
commercial.
(HINT: The song is "Dies Irae" from the Mozart Requiem.)
------------------------------
From: "Sjoerd Langkemper" <[EMAIL PROTECTED]>
Subject: Re: Script from crontab doesn't work.
Date: Tue, 29 Aug 2000 15:50:03 GMT
But it works on the command line, so I don't think Lynx is the problem.
Sjoerd
------------------------------
From: "Sjoerd Langkemper" <[EMAIL PROTECTED]>
Subject: Re: Script from crontab doesn't work.
Date: Tue, 29 Aug 2000 15:50:02 GMT
"-ljl-" <[EMAIL PROTECTED]> wrote:
> Could this be a quoting problem; I seem to have had a similar problem
> that was just that, when piping to an awk script.
> Louis-ljl-{ Louis J. LaBash, Jr. }
What do you mean with a "quoting" problem?
Sjoerd
------------------------------
Subject: Re: Newbie, Help, CLI Commands,
From: [EMAIL PROTECTED] (Andreas Kahari)
Date: 29 Aug 2000 17:51:35 +0100
In article <39abd80d$0$99047$[EMAIL PROTECTED]>,
Martin Vipond <[EMAIL PROTECTED]> wrote:
>I need to delete an entire directory with files and subdirectories. Is there
>a command such as deltree?
>
>Thanks
>mjv
>
>
rm -rf directory
Don't mess up.
/A
--
Andreas K�h�ri, <URL:http://hello.to/andkaha/>.
All junk e-mail will be reported to the appropriate authorities.
========================================================================
The important thing is not to stop questioning.
------------------------------
From: D'Arque Bishop <[EMAIL PROTECTED]>
Subject: Re: pppd CHAP and BTConnect
Date: Tue, 29 Aug 2000 15:57:37 GMT
Hey there,
[EMAIL PROTECTED] wrote:
> Hi All
> Just switched to BT connect unmetered access and trying to get our
> Slackware box to connect.
> Had the setup working previously with Demon and Ezesurf, but these
> didn't use CHAP.
> Having worked through various problems, I think the problem may be with
> the actual CHAP secrets file.
*snip*
I haven't had much experience working with CHAP, myself, but have you tried
using Slackware's pppsetup script? It'll set up all of the parameters
necessary so that you can start and stop your PPP connection with ppp-go
and ppp-off, and it DOES have support for CHAP. If you haven't given that
a try, I would HIGHLY recommend it. :)
Hope this helps...
--
==============================================================================
"Do you see the smile in my words, sad and evil? Sad because
I am utterly alone. Evil because I am dead and yet I live.
Can you hear me? Listen. A dead man visits you."
--James O'Barr, The Crow
D'Arque Bishop -- [EMAIL PROTECTED]
http://www.ravenloft.net/~drkbish
"For a dark man shall come unto the House of God, and the
darkness shall be upon him, yea, even within him."
-- from Noctropolis: Night Vision
==============================================================================
------------------------------
From: [EMAIL PROTECTED]
Crossposted-To: comp.os.linux.setup
Subject: hard drive partition table messed up!
Date: Tue, 29 Aug 2000 15:47:28 GMT
Hello all, I was trying to format my 8GB Maxtor drive the other day
with Windows NT 4.0 so that I can free up some space for linux. The
whole drive had NT before, so I used the NT 4.0 boot disk to boot up and
delete the old partition and then create a new smaller one, 3GB. The
setup then proceed to format the smaller partition for NTFS. Half way
through the power to the PC was accidentally disconnected. So then I
redo the process, but now the NT setup thinks that the whole drive is
only 3GB, Darn!!! So I figure maybe go ahead and install NT and
hopefully Linux installation will figure out the extra space later.
Anyway, I went ahead and installed NT on that 3GB partition, that's all
the damn NT OS will see. So after the NT installation was completed, it
asked me to restart my machine. When the machine reboot, the first
thing I see is something like "No Operating System detected". Darn!!!
I boot up with my Linux boot disk and did an CFDISK and wow! the whole
8GB is there and that @@#$ing! 3GB NT partition is also still there.
But the @#$@ing thing won't boot. Only reason I need NT is because at
work we develop in NT, otherwise I would put the penguin on my whole PC.
Anyway, does anyone out there know how I can get my Maxtor 8GB to boot
again? I rather not post to comp.os.windows.nt because you know how I
feel about it. Thanks a lot.
Sent via Deja.com http://www.deja.com/
Before you buy.
------------------------------
From: [EMAIL PROTECTED]
Subject: Re: Free ISPs?
Date: Tue, 29 Aug 2000 16:40:40 +0100
Reply-To: no_replyto@oursite
This message has been posted by: [EMAIL PROTECTED] (Dave Ewart)
On Tue, 29 Aug 2000 15:25:16 GMT, Sjoerd Langkemper
<[EMAIL PROTECTED]> wrote:
>"Keith Smith" <[EMAIL PROTECTED]> wrote:
>> Are there any free ISPs that work with Linux [in Philadelphia]?
>
>Don't all ISP's work with Linux?
A better question would be "Are there any ISPs to steer clear of when
using Linux?", since I know that there were one or two here in UK that
used a proprietary (i.e. MS-Windows only) dialer/authentication client.
Can't remember the names of those ISPs unfortunately.
So long as you can get hold of (a) the dial-up number and (b) at least
one DNS server IP address, you shouldn't have too much trouble getting
Linux to work.
Dave.
--
Dave Ewart
[EMAIL PROTECTED]
Computing Manager
ICRF Cancer Epidemiology Unit, Oxford UK
------------------------------
From: [EMAIL PROTECTED] (Scott Alfter)
Subject: Re: From RedHat to SuSE: A simple question
Date: Tue, 29 Aug 2000 16:02:27 GMT
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Hash: SHA1
In article <0%mq5.2975$[EMAIL PROTECTED]>, Sly <[EMAIL PROTECTED]> wrote:
>Totally subjective, absolutely non-scientific. It's my personal experience.
>RH is extremely slow on my P133 with 80 Mb of RAM. It alweays been...
>[...]
>Mandrake is faster, yet you better be patient on an old pentium...
>[...]
>Of course, the various speeds don't show that much on my Pentium III 500 Mhz
>w/128 Mb of RAM. But my server is on the older one, so I need a distro that
>concentrate on efficiency, not goodies. SuSE does that.
Most of my machines run SuSE 6.[34]; it's done what I wanted fairly well. I
mangled the installation on my firewall a little bit, though...took out a
package (rpm?) to get it to all fit in 120 megs of disk and ended up with an
unmaintainable system. It shuffled packets properly, but would've been
difficult to upgrade.
I built up a replacement system for it with the Linux From Scratch FAQ as a
guide. The whole thing's compiled with 486 optimizations from the latest
stable source code, which has speeded things up a fair amount. The entire
system uses about 40% less disk space than SuSE had been using, too, so some
space was freed up to allow a small swap partition.
(The firewall machine's a real powerhouse...Cyrix 5x86-120, 16 megs of RAM,
120 megs of disk, a pair of RTL8139-based NICs, and monochrome display
adapter. It's fast enough to shuffle packets on a cable-modem connection,
and it ought to keep the skr1pt k1dd13s from screwing with the machines
behind it.)
It's not for everybody, but if compiling stuff doesn't scare you, you might
want to try rolling your own Linux system sometime. My next project is to
build up a K6-optimized system that might displace SuSE on the workstation
or the server. (Mandrake is Pentium-optimized, but nobody has ever done a
distro that's optimized for the K6. Maybe it's the result of gcc only
somewhat recently getting the ability to optimize code for the K6.)
_/_
/ v \
(IIGS( Scott Alfter (remove Voyager's hull number for email address)
\_^_/ http://salfter.dyndns.org
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------------------------------
From: [EMAIL PROTECTED] (Arthur Corliss)
Crossposted-To: comp.sys.sgi.admin
Subject: Re: opengl on sgi linux machines?
Date: Tue, 29 Aug 2000 16:05:20 GMT
Reply-To: [EMAIL PROTECTED]
On 29 Aug 2000 05:26:15 -0400, Thor Lancelot Simon <[EMAIL PROTECTED]> wrote:
>
>Sure. Unfortunately, I can buy about a dozen 800Mhz PIII systems for the
>cost of anything with that processor in it, or at least three OEM 21264
>machines.
Ahh, so here we change the argument. It's no longer "intel/amd smokes mips
in pure cpu performance" (which we all know is ludicrous) but all about price
per performance. Nice switch. BTW, 21264 are more kin of the MIPs than x86,
bringing them into an argument to defend "intel/amd smoking mips" is
intellectually dishonest.
Of course, I don't see you claiming that you've ever seen a 12-way x86 box
that actually scales as well MIPs boxes, eh? Did you forget to mention that
you don't have an OS on x86 that scales worth a damn? (And I'm a big Linux
users, too, but it's a waste on anything more than four processors)
>Except at the very high end, it's *awfully* hard to make the case for curvy
>blue hardware any more, which is a real shame.
Hello, isn't that *exactly* the market SGI has catered to all these years?
<Sheesh> And they do make a compelling case on the high end, don't they?
That's what I thought.
--Arthur Corliss
Programmer/Administrator
Gallant Technologies (http://www.gallanttech.com/)
------------------------------
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End of Linux-Misc Digest
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