Re: [SLUG] Error in Time() command
On Sun, May 23, 2010 at 2:02 AM, tenz...@iinet.net.au tenz...@iinet.net.au wrote: I'm seeking a preferably citeable reference to the amount of error in the returned result from a Time() command. I want to be able to quote the level of error in timing the execution speed of my project. A reference that probably doesn't apply to you wouldn't really convince me; I would think simply showing a sane standard deviation over a reasonable number of runs would be better. You could find a lot of papers that wouldn't even give this. [1] is an example of a paper written with several timing-based results with what I think is quite readable stats (IMHO:) -i [1] ftp://ftp.cse.unsw.edu.au/pub/doc/papers/UNSW/0307.pdf -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Issues creating/imporing vms with ESXi
On Wed, Apr 15, 2009 at 10:13:42AM +0800, Hongduc Nguyen wrote: By any chance has anyone encountered the error message 'A general system error occurred - Internal error' during the creation/import of a VM via the VMware infastructure client? This type of question is best asked on the VMware community forums, see: http://communities.vmware.com Thanks, -i -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Ubuntu gcc version problem
On Mon, Oct 27, 2008 at 11:38:15PM +1100, david wrote: When I run vmware-config.pl I get the following warning message: Your kernel was built with gcc version 4.2.3, while you are trying to use /usr/bin/gcc version 4.2.4. What version am I running? Should I care? vmware-config.pl gives dire warnings about impending crashes, although I've found two posts on the net suggesting that I can bypass the warning. It's warning you because different versions of gcc *might* do things like layout structures differently, meaning the newly built modules *might* get a wrong offset and end-up poking around where they're not supposed to (i.e. ABI compatability). The results could be from nothing at all to all hell breaking loose. However, for a minor version bump like this it is very unlikely anything like that changed in gcc, so you should be fine. If you want to be really sure, re-compile your kernel with the gcc on your system now. -i -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [Fwd: Re: [SLUG] IOWait definition]
On Fri, Oct 10, 2008 at 05:50:52AM +0800, Adrian Chadd wrote: I've never seen IOWAIT for NFS client traffic (ie, traffic from an NFS client talking to an NFS server) but who knows, this is linux.. I would say this doesn't count to iowait either; see fs/nfs/pagelist.c:nfs_wait_on_request() -- it appears to put itself out of action without doing anything required to update iowait times (see kernel/sched.c:io_schedule()). I rekon Shehjar would know though... :) -i -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] olympics viewing
On Tue, Aug 12, 2008 at 2:52 PM, Luke Vanderfluit [EMAIL PROTECTED] wrote: Does anyone know of a site where I can watch the olympics using a linux (non-windows) codec? As much as flash is a Linux codec, you could try the instructions for viewing on Youtube at [1] [1] http://valleywag.com/5034896/how-to-crack-youtubes-olympics-channel -i -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Filesystem which allows online fsck?
On Wed, Jun 11, 2008 at 8:24 PM, Erik de Castro Lopo [EMAIL PROTECTED] wrote: Does anyone know of a Linux filesystem which allows online fsck on a disk that is currently mounted read/write? I remember ChunkFS talking about this: http://www.valhenson.org/chunkfs/ Maybe you could take a LVM snapshot and run fsck on that. But if the file system is hosed, do you really want to be writing more to it? -i -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] USB speakers play everything but web served files
On Tue, Mar 04, 2008 at 08:13:41PM +1100, Mark wrote: I assume I am missing some iceweasel plug in, but everything seems to be there any pointers? If you see the video then you've got the flash plugin installed OK. You might like to try installing the pulseaudio sound server (if it's not already running; apt-get install pulseaudio, read /usr/share/doc/pulseaudio/README.Debian) and using the libflashsupport library from http://www.pulseaudio.org/wiki/FlashPlayer9Solution This works pretty good for me. -i -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Tuesday afternoon shell command optimisation party!
On Thu, Dec 20, 2007 at 09:22:49PM +1100, Jamie Wilkinson wrote: I love Ians posts only because he includes L1 and L2 cache hits in every one. If only you would share the command that gave you these numbers. The numbers come from the CPU performance counters. I use the perfmon tools [1] to get at these. This project should (one day) make it into the standard kernel as the interface to performance management units provided by current CPUs. One extremely compelling reason to use Itanium is the excellent HP Caliper [2]. It monitors a range of useful metrics and presents them in a report, which is much easier than measuring them all by hand and manually correlating. AFAIK there isn't anything like this for x86 so far, so you're left to get familiar with [3]. -i [1] http://perfmon2.sourceforge.net/ [2] http://www.hp.com/go/caliper [3] http://www.intel.com/design/processor/manuals/253669.pdf -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Tuesday afternoon shell command optimisation party!
On Wed, Dec 19, 2007 at 12:34:02AM +1100, Rick Welykochy wrote:
No sir! But shell usually wins.
On my 1 GHz / 1 GB powerbook, the python one-liner
I just submitted runs 5 x faster than the original.
I think C usually wins, the version below is 25 times faster than the
python version (from disk cache).
[EMAIL PROTECTED]:~$ ls -lh /tmp/randomcommas
-rw-r--r-- 1 ianw ianw 65M 2007-12-19 14:30 /tmp/randomcommas
[EMAIL PROTECTED]:~$ /usr/bin/time ./comma /tmp/randomcommas
commas: 1287100
0.07user 0.04system 0:00.11elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+126minor)pagefaults 0swaps
[EMAIL PROTECTED]:~$ /usr/bin/time python -Sc import sys; print
sum(l.count(',') for l in sys.stdin) /tmp/randomcommas
1287100
2.68user 0.13system 0:02.84elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+8659minor)pagefaults 0swaps
I'd guess the Python version is spending that time doing some extra
copying because it causes a lot of page faults is really cache
unfriendly.
Python
Instructions retired per L1 data cache access: 11.03
Instructions retired per L2 data cache access: 24.16
C
Instructions retired per L1 data cache access: 6.01
Instructions retired per L2 data cache access: 366.92
-i
#include stdio.h
#include stdlib.h
#include sys/types.h
#include sys/stat.h
#include fcntl.h
#include string.h
#include errno.h
#include unistd.h
#define CHUNK 16384
char buf[CHUNK];
int main(int argc, char *argv[])
{
unsigned long count = 0;
ssize_t len;
int fd = 0;
if (argc != 1)
fd = open(argv[1], O_RDONLY);
if (fd == -1) {
printf(blah: %s\n, strerror(errno));
exit(-1);
}
while ( (len = read(fd, buf, CHUNK)) != 0 )
{
int i;
for (i=0; i len; i++)
if (buf[i] == ',') count++;
}
printf(commas: %lu\n, count);
return 0;
}
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Re: [SLUG] Tuesday afternoon shell command optimisation party!
On Wed, Dec 19, 2007 at 02:51:34PM +1100, Matthew Hannigan wrote: Here's one in lex; ripped off from the flex info page. I'd be interested in its performance compared to straight C. No doubt worse, just curious how much worse. Similar to the Python version [EMAIL PROTECTED]:/tmp$ /usr/bin/time ./count ./randomcommas # of commas = 1287100 2.57user 0.02system 0:02.60elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+138minor)pagefaults 0swaps I'm not even going to guess at what that version is actually doing! A quick look says this one is CPU bound, compared to Python which is memory bound. Lex % Cycles lost due to GR/load dependency stalls (lower is better): 0.31 Python % Cycles lost due to GR/load dependency stalls (lower is better): 46.25 The Python spends a lot of time sitting around waiting for data to come from the cache/memory (load dependency stalls). The Lex version doesn't so the extra time can be attributed to CPU work. -i -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] switching debian architecture in place?
On Thu, Nov 15, 2007 at 05:47:11PM +1100, Amos Shapira wrote: Is there a way to switch over to amd64 system without re-installing the system from scratch? I'm happy to be proved wrong but I think a re-install would be much easier. If I had to do it, I would probably use debootstrap to create a chroot x86-64 environment then use a static shell like sash to copy this newly created chroot over the existing install. Then probably spend a few hours fixing all the things I didn't think of that broke :) -i -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] tidy/lint for Apache httpd.conf?
On Wed, Oct 31, 2007 at 02:51:24PM +1100, Sonia Hamilton wrote: Anyone seen a 'tidy/lint' like program similar to tidy [1] for cleaning up/indenting Apache httpd.conf files? Try opening it in emacs apache mode (if it doesn't already, type M-x apache-mode) then indent all lines with M-C-\ -i -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Help with strace - WinDev HyperFile Server
On Mon, May 21, 2007 at 10:45:08AM +1000, Simon Wong wrote: Can anyone shed a glimmer of light on what the strace trace means? clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0xb7da9928) = 19927 --- SIGCHLD (Child exited) @ 0 (0) --- exit_group(0) = ? It forked a child process and then quit. Try strace with the -f flag to see what the child does. -i -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] AMD based computers.
On Tue, Mar 13, 2007 at 11:54:08AM +1100, Visser, Martin wrote: Having two near equal sized competitors in the CPU market ensures that progress is aggressively pursued. If by size you mean performance, maybe, but IIRC Intel still produces something close to 80% of the x86 market. -i -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] dns lookup with host works, other apps doesn't.
On Wed, Feb 21, 2007 at 01:24:01PM +1100, Erik de Castro Lopo wrote: Anybody have any explanation for this weird behaviour? No, but I bet the strace/ltrace output would give a good clue as to where the problem was happening. -i -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Error in executing mount command
On Wed, Nov 29, 2006 at 01:18:41PM +1100, Leslie Katz wrote: mount -o loop /home/leslie/Desktop/sdb.img /mnt/directory mount: you must specify the filesystem type The file system probably starts after the partition table in your dump of the disk. Try mounting it with an one block offset, e.g. mount -o loop,offset=512 ... -i -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] NSLU2 USB Power/Serial Port Board
Hi, A few of the smart cookies at ERTOS/UNSW have designed a great little add-on board for the Linksys NSLU2 (also known as a Slug -- http://www.nslu2-linux.org/). It gives you a serial port, a remote reset and allows the device to be powered over USB -- and it all fits inside the standard case! This means you can carry around a whole ARM development platform running Linux, or L4, or something you wrote yourself, all in your pocket. It is such fun I'm investigating how we can get these out to others. If you're interested, please go to http://www.netux.com.au/nslu2/ and tell me (there's also some photos). The price will be ~$20AU, but as with any electronics things vary wildly based on the quantities you buy (which is why I'm asking). We'll probably release the plans, but the genius of it is the small size of the board, which most people can't (easily) make at home. Thanks -i -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] apt- bittorrent
On Wed, Nov 08, 2006 at 01:02:07AM +1100, Ken Foskey wrote: I am sure someone has thought about this. Yes, I know Shehjar (cc'd) has thought about it an implemented a version; I'm sure he'd love to talk about it :) -i -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Creating a really really simple .deb package
On Sat, Nov 04, 2006 at 11:09:34PM +1100, Jeremy Visser wrote:
I would like to know how to create a Debian package that consists of one
file, not generated by source. I have tried using a Makefile that just
copies files and running it with CheckInstall, but have failed to get it
to recognise any changes.
I'm not sure what CheckInstall does, but this should be a fairly easy.
That said, building your first package has a bit of a learning curve
no matter what.
Firstly, write your Makefile to do what it needs to do; but make sure
you allow for a prefix variable correctly; e.g.
---
prefix := /usr
install:
cp file ${prefix}/share/blah
---
This allows you to easily put it in whatever package (deb, rpm, blah)
you want. automake makes it easy, if you want to learn it. Put it in
a tarball and use dh_make to get the initial framework for the
package.
Then, your debian/rules file, using CDBS, can be as simple as
---
#!/usr/bin/make -f
include /usr/share/cdbs/1/class/makefile.mk
include /usr/share/cdbs/1/rules/debhelper.mk
DEB_MAKE_CLEAN_TARGET:= clean
DEB_MAKE_BUILD_TARGET:= all
DEB_MAKE_INSTALL_TARGET := install prefix=$(CURDIR)/debian/tmp/usr
---
dpkg-buildpackage -rfakeroot and you're done.
However, if you are really interested in learning about Debian
packaging, don't use CDBS but build it up by going through the new
maintainers guide [1] to actually learn what CDBS does.
[1] http://www.debian.org/doc/maint-guide/
-i
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Re: [SLUG] Some Thoughts Regarding Spam
On Mon, Nov 06, 2006 at 11:40:14AM +1100, Robert Thorsby wrote: There is also another new one (which is present on a number of mailing lists) that commences with an image. The only ones spamassassin has missed for me lately is a bunch of stock scam image based ones with random text. I heartily recommend the FuzzyOcr [1] plugin, which passes images through gocr and picks out scam words. A quick grep shows it has helped flag 200 of the 1100 spams I've received over the past 2 weeks. I sometimes wonder if smart spammers don't mind these arms wars, because as we cull each new threat we do the work of reducing their competition for them ... -i [1] http://wiki.apache.org/spamassassin/FuzzyOcrPlugin -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] NSLU2 Stories
On Wed, Oct 25, 2006 at 04:22:27PM +1000, Simon Males wrote: It's been brought to my attention that the Linksys NSLU2 runs Linux and that there are projects in existence creating custom firmware. It also runs L4 quite nicley; if you're looking for a challenge you could shadow the advanced operating systems course from UNSW [1] or play with some of the ERTOS stuff [2]. You'll want a serial header which is fun to hardware hack, but careful you don't fry it if you don't have JTAG equipment; I speak from experience :(. [1] http://cgi.cse.unsw.edu.au/~cs9242/06/ [2] http://www.ertos.nicta.com.au/ -i -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Microtouch USB touch screen X/Y axis swapped
On Tue, Oct 24, 2006 at 03:33:33PM +0930, Glen Turner wrote: If that still sucks you'll need to swap the axises in X11 as the input layer doesn't allow such niceness. I've found the evtest program (download latest from) http://linuxconsole.cvs.sourceforge.net/linuxconsole/ruby/utils/evtest.c?view=log very useful in tracking down X/Y problems with input drivers. -i -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Re-running X autoconfiguration on Ubuntu
On Mon, Oct 09, 2006 at 07:43:52PM +1000, Mary Gardiner wrote: 2. dpkg-reconfigure xorg-server at any time, if you want to semi-manually configure things and answer a lot of semi-compehensible questions Up the priority so you only see things you have to answer, e.g. dpkg-reconfigure --priority=high xorg-server By default reconfigure by hand sets priority to low. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] How to force which device is eth0?
On Mon, Aug 21, 2006 at 09:19:13AM +1000, Simon Wong wrote: Can anyone offer any advice on how to force which hardware is eth0? I think you have two options; firstly is the ifrename package, which reads /etc/iftab. The other option is you can give your cards static names with udev, and then refer to those for your interfaces; see http://www.debianhelp.co.uk/udev.htm -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] DHCP client vs sendmail
On Wed, Aug 09, 2006 at 11:58:45AM +1000, Peter Miller wrote: In my case, the value of YOUR_ISP_UPSTREAM_MAILSERVER depends on which firewall I'm behind, since all the ISPs in question gate client connections as being from their own customers' IP addresses, not the whole Internet. So one size definitely doesn't fit all. Does you ISP not provide you with a secure SMTP server you can authenticate to? If they don't, switch ISPs or use the Gmail one. For example, I have exim on my laptop setup via a ssl tunnel to Internode's secure SMTP server. Exim authenticates for for me and it just works. I'm sure sendmail can do similar. Therefore no matter where I am there's no need to switch anything (as long as I pay my ISP bills :) -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Re: Thread distribution on an SMP box
On Tue, Jun 27, 2006 at 05:05:43PM +1000, David Hart wrote: AMD has taken out some very interesting patents whereby certain process scheduling operations are moved from the OS into silicon From reading that patent and a related paper [1] it seems that the speculative execution on another processor (or processor thread) is kicked off on a particular instruction and speculatively executes instructions from the current thread; the particular patent deals with getting things out the other end in the right order. It seems this is very effective for loop based code, where the compiler can find a lot of other things to do. But have a look at the figures for IPC on less helpful code; it doesn't seem there is enough work being found to make it effective. The authors argue that it is simpler hardware, so you could increase clock rate. You're essentially turning two superscalar processors into one with speculative execution (Itanium anyone?). We know that even finding enough instructions to keep the units on a standard superscalar busy is almost impossible, so, unless you make the compiler much smarter there is still a bottle neck of finding enough to do (Itanium anyone?). Personally, I think we're all going to have to bite the bullet and learn to write parallelisable code. For a good discussion on this, see The problem with threads from May's IEEE Computer [2]. http://1url.org/go/1USP6574725 A great site I have found is www.pat2pdf.org which puts these in a little more readable form. [1] http://citeseer.ist.psu.edu/krishnan99chipmultiprocessor.html [2] http://www.computer.org/portal/site/computer/index.jsp?pageID=computer_level1_articleTheCat=1005path=computer/homepage/0506file=cover.xmlxsl=article.xsl -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Thread distribution on an SMP box
On Mon, Jun 26, 2006 at 01:55:16PM +1000, Carlo Sogono wrote: I would like to find out how Linux distributes processes in an SMP-enabled box with n CPUs. Will the kernel move a process from one CPU to another if another CPU is idle? It may do. Keeping processes close to where they last run is called CPU affinity, and is obviously better for the cache. See the man pages for sched_[set|get]affinity for the Linux interface for binding to CPUs. On a larger machine you also need to control node locality, for that you can use libnuma and numactl, which should come with your distribution. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Ubuntu : bypassing fsck when booting on battery
On Wed, Jun 14, 2006 at 01:19:59PM +1000, Martin Pool wrote: I think this is caused by the fact that fsck runs from rcS and acpid is started from rc0 (i.e. later), and so the acpi modules are not loaded in time to tell fsck to hold off. Loading the acpi module manually before the on_ac_power check might fix it (in a rather kludgy way). This is also consistent with it working just fine for me, since I have very little built as modules. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] CRAMFS little vs big endian...
On Tue, Jun 13, 2006 at 06:05:09PM +1000, James Gray wrote: Anyone know how (if) it is possible to do the byte-reordering?? [of a cramfs file system] $ apt-get install cramfsswap -i -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] How to build a kernel on debian (with modules enabled)
On Sun, Jun 11, 2006 at 12:23:28PM +, Paul Davies wrote: Problem: I can't boot the kernel (2.6.15-1) with modules enabled (using DEBIAN) Reason: My ram disk boot image is not being recognised (not attached to an existing device). Paul, My suggestion is ditch the RAM disk; if you don't need it (and I doubt you do) it's just another thing to go wrong. Just make sure you build the important drivers into the kernel (IDE, file system, etc). You should be able to do $ make $ sudo make modules_install $ sudo make install $ sudo update-grub and it should just work -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Ubuntu : bypassing fsck when booting on battery
On Fri, Jun 09, 2006 at 08:50:59AM +1000, Erik de Castro Lopo wrote: I even tried rebooting and booting on battery and I get the same result, it still thinks is on AC power. This is a Dell Latittude X1, same as Rob's. FWIW, this works fine (i.e. I get the expected behaviour of no fsck on battery, even though it wants to) with my X1 and Debian. I of course figured this out after rebooting 30 times to try and get the SD card reader sleeping properly :) -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Ubuntu : bypassing fsck when booting on battery
On Fri, Jun 09, 2006 at 05:06:50PM +1000, Erik de Castro Lopo wrote: Did you install dapper straight up or install breezy and then dist-upgrade? I'm pretty sure I even installed the one before breezy, upgraded it to breezy and then upgraded again to dapper. I'm afraid I'm one of those uncool actual Debian users; if it helps it's initscripts 2.86.ds1-14.1 and some fairly recent kernel. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] citrix scroll bars do not go back up
On Fri, May 19, 2006 at 11:07:43AM +1000, Ken Foskey wrote: I have citrix installed and it has grey scroll bars, It uses the motif libraries. The problem I am getting is that I can scroll down but not back up using the scroll bars. I have seen this problem with another program as well, vnc I think. IIRC left click goes one way, right click goes the other. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Inatlling a compiled subversion and removing the packaged one - how to fix dependencies.
On Fri, May 05, 2006 at 11:32:18PM +1000, Mike Lake wrote: My machine has this: ~$ ls -l /dev/uran* cr--r--r-- 1 root root 1, 9 Jun 20 2002 /dev/urandom ~$ ls -l /dev/ran* crw-rw-rw- 1 root root 1, 8 Jun 20 2002 /dev/random Why is one writable by all and the other not ? I think both should be 666. IIRC, if you write to urandom, it gives the pseudo random generator a new seed. Your boot scripts might do something to it. If I do as root 'ln -s /dev/random /dev/urandom' what might it screw up? Nothing; random is a true random device, and the urandom a pseudo-random device. There is a small security issue when you don't use true random numbers, but this is largely theoretical. How can I go back again and create the character device? man mknod -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Inatlling a compiled subversion and removing the packaged one - how to fix dependencies.
On Fri, May 05, 2006 at 05:01:11PM +1000, Michael Lake wrote: The make install for the compiled subversion I think will go into /usr/local/ But I need to remove the subversion that was put on via apt-get which is in /usr/bin/ and /usr/lib etc otherwise there will be clashes and things will get confusing. /usr/local/bin should be in your path before /usr/bin, so your locally installed version will be called when you just call 'svn'. I'd just leave the old package there. If you have root, why not symlink /dev/random to /dev/urandom and avoid the need for entropy. I'm sure the security implications are minimal. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] LG LW 65 Laptop x.org screen res problems
Mon Mon, Apr 24, 2006 at 10:51:38AM +1000, Menno Schaaf wrote: I helped a friend install Ubuntu (5.10) on her laptop this weekend, but couldn't get X to display in the native resolution (1280x800). It's using the i810 driver, and defaults back to 1024x768. If it's anything like my Dell X1, try the 915resolution package which includes the utility and init scripts to re-write the bios to get the extended resolution. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] apt-get update and pgp keys
On Thu, Apr 13, 2006 at 11:10:10PM +1000, Steve Kowalik wrote: I doubt the key in question is on the keyservers. It's located at http://ftp-master.debian.org/ziyi_key_2006.asc Or just install the debian-archive-keyring package -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] software for screencasts
On Tue, Apr 11, 2006 at 03:57:46PM +1000, Julio Cesar Ody wrote: does anyone has a recommendation for a software to make screencasts (for GNU/Linux)? What I want is the hability to broadcast my desktop via GAIM/MSN. I think you might mean taking your screen and encoding it into some sort of video on the fly, which I have no idea about. But something I have heard about is http://vnccasts.com/ which seems to be doing a similar thing without the GAIM/MSN. Maybe there's something in that you could use? -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] [chat] NFS Shares.
On Tue, Mar 21, 2006 at 08:25:04PM +1100, cmyers wrote: Im mounting 5 drives (it takes between 5 - 10 minutes) to mount all the drives. Is there something else I should be looking at? or doing? to get them to mount quicker? Are you sure you're not loosing packets? I've seen issues where some magic box in the network decided to mostly drop/shape UDP packets, causing NFS to act very strage. Try mounting with TCP and see if that helps, or trace it using ethereal; you'll quickly see if it is sending a lot of retry packets. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Latex, layout of maths answer
On Tue, Mar 14, 2006 at 01:43:58PM +1100, Terry Collins wrote:
Okay, how do you layout an answer for something as simple as
sqrt(175)-17**2 in latex?
I'd do it something like
\begin{eqnarray*}
a = \sqrt{175} - 17^2 \\
= 13.22 - 289 \\
= -275.78. \\
\end{eqnarray*}
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[SLUG] Free AlphaPC 164
Free to good home * AlphaPC 164 * 433Mhz Alpha 21164 Processor * 128Mb RAM * 18Gig Quantum Atlas 10K SCSI drive * Pioneer SCSI CD * Archive 4326xx SCSI tape drive (DDS-2?) with a whole bunch of tapes * Inbuilt IDE controller - takes normal IDE disks. * IDE hard drive cage (modified slightly to fit into top slot * DC21030 video (runs X apparently, but never tried) * Tulip 10/100 PCI ethernet Running NetBSD currently. Only requirements are you're interested in using it for something and you come to Drummoyne to pick it up. Please reply off list. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Free AlphaPC 164
On Tue, Feb 28, 2006 at 12:12:20PM +1100, Ian Wienand wrote: Free to good home Thanks, it has found a new home :) -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] How to discover which modules unnecessary
On Fri, Feb 24, 2006 at 10:09:36AM +0800, [EMAIL PROTECTED] wrote: Actually this is mostly just a waste of effort. Config swap and let the system swap out all the bits it does not need. Ahh, what if you compile your SCSI driver as a module, and the pages containing its code are put onto a SCSI disk drive? Kernel memory isn't swappable. I do however agree it is a waste of effort :) -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Dell Latitude D510 with a hard drive that does morse code...
On Mon, Feb 13, 2006 at 07:43:54AM +1100, Anthony O'Hara wrote: Booting Gentoo results in an odd beeping noise coming from the hard drive.. It just sits there making a very quiet and subtle morse code noise over and over and over again. I don't think it is your hard drive, there was a period a while ago where a lot of people were complaining about noise, and it was apparently capacitors resonating due to changed timer frequency. See http://lkml.org/lkml/2004/10/7/69 as one example. Approaches include turning down the timer frequency and booting with APCI off. ISTR that it was fixed in later kernels, so maybe try 2.6.15. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] FTP directory synchronisation
On Mon, Feb 13, 2006 at 10:44:14AM +1100, Raphael Kraus wrote: I'm wanting to perform FTP synchronisation (similar to rsync) - i.e. a local and remote directory are made up to date at a set schedule. I use weex for just this; a poor man's rsync http://weex.sourceforge.net/ -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Re: pentium M series
On Tue, Dec 20, 2005 at 02:06:11AM +, Dave Airlie wrote: I've heard chat on lkml about using alternatives (the kernel ones) to do this.. basically at build time you construct a table of every spinlock call and patch them all up at CPU hotplug or kernel boot time... Sounds like magic to me... No more magic than a debugger inserting breakpoints, but the thin end of a fairly nasty wedge -- debugging the kernel is already hard enough without ever being able to ascertain exactly what is executing! -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Re: pentium M series
On Mon, Dec 19, 2005 at 12:34:33PM +1100, Visser, Martin wrote: I just googled for benchmark performance linux kernel i386 versus i686 and found nothing of any import. I am just wondering if anyone has bothered doing this. It would be nice to know what the tradeoff is between performance and convenience of not needing to know the CPU architecture. We certainly have an idea that the primitives that the operating system use can have vastly different implications on different x86 models; costs of things like locks and memory barriers flushing pipelines vary wildly. General approaches like RCU in the kernel have addressed those types of issues (in a general sense -- we know locks are expensive so avoid them). We have some students currently working on a very interesting paper measuring costs of things like atomic increments, locks and TLB fills on different architectures. Stay tuned for that. But (AFAIK) the 386 kernel doesn't take much account of these differences across sub-architectures. Mostly I think the sub-architecture is passed via different flags to gcc, which can try to optimise the code. Talking with people from SGI who look into that sort of thing, the benefits of even a much better compiler fall into noise compared to things like lock contention. For your general desktop user, I doubt they're really waiting much for the kernel no matter what version they run. If you want to know why I say that, I have a fairly concise example : [EMAIL PROTECTED]:~$ ldd /usr/bin/gnome-calculator linux-gate.so.1 = (0xa000) libgnomeui-2.so.0 = /usr/lib/libgnomeui-2.so.0 (0x20064000) libgnome-keyring.so.0 = /usr/lib/libgnome-keyring.so.0 (0x20214000) libjpeg.so.62 = /usr/lib/libjpeg.so.62 (0x2023c000) libbonoboui-2.so.0 = /usr/lib/libbonoboui-2.so.0 (0x20294000) libSM.so.6 = /usr/X11R6/lib/libSM.so.6 (0x2037c000) libICE.so.6 = /usr/X11R6/lib/libICE.so.6 (0x203a) libX11.so.6 = /usr/X11R6/lib/libX11.so.6 (0x203e8000) libgnomecanvas-2.so.0 = /usr/lib/libgnomecanvas-2.so.0 (0x2059) libgnome-2.so.0 = /usr/lib/libgnome-2.so.0 (0x205fc000) libesd.so.0 = /usr/lib/libesd.so.0 (0x20644000) libaudiofile.so.0 = /usr/lib/libaudiofile.so.0 (0x20664000) libart_lgpl_2.so.2 = /usr/lib/libart_lgpl_2.so.2 (0x206c) libgtk-x11-2.0.so.0 = /usr/lib/libgtk-x11-2.0.so.0 (0x206fc000) libgdk-x11-2.0.so.0 = /usr/lib/libgdk-x11-2.0.so.0 (0x20d14000) libatk-1.0.so.0 = /usr/lib/libatk-1.0.so.0 (0x20e28000) libgdk_pixbuf-2.0.so.0 = /usr/lib/libgdk_pixbuf-2.0.so.0 (0x20e7) libpangoxft-1.0.so.0 = /usr/lib/libpangoxft-1.0.so.0 (0x20eb) libpangox-1.0.so.0 = /usr/lib/libpangox-1.0.so.0 (0x20ed) libpangoft2-1.0.so.0 = /usr/lib/libpangoft2-1.0.so.0 (0x20ef8000) libpango-1.0.so.0 = /usr/lib/libpango-1.0.so.0 (0x20f6) libgnomevfs-2.so.0 = /usr/lib/libgnomevfs-2.so.0 (0x20fe) libxml2.so.2 = /usr/lib/libxml2.so.2 (0x210bc000) libgnutls.so.11 = /usr/lib/libgnutls.so.11 (0x21364000) libtasn1.so.2 = /usr/lib/libtasn1.so.2 (0x2145) libgcrypt.so.11 = /usr/lib/libgcrypt.so.11 (0x21484000) libnsl.so.1 = /lib/tls/libnsl.so.1 (0x2152c000) libgpg-error.so.0 = /usr/lib/libgpg-error.so.0 (0x21568000) libz.so.1 = /usr/lib/libz.so.1 (0x2157c000) libresolv.so.2 = /lib/tls/libresolv.so.2 (0x215b4000) librt.so.1 = /lib/tls/librt.so.1 (0x215ec000) libbonobo-2.so.0 = /usr/lib/libbonobo-2.so.0 (0x2160c000) libbonobo-activation.so.4 = /usr/lib/libbonobo-activation.so.4 (0x216e) libORBitCosNaming-2.so.0 = /usr/lib/libORBitCosNaming-2.so.0 (0x2171c000) libgconf-2.so.4 = /usr/lib/libgconf-2.so.4 (0x21734000) libORBit-2.so.0 = /usr/lib/libORBit-2.so.0 (0x217b4000) libpopt.so.0 = /lib/libpopt.so.0 (0x21874000) libgobject-2.0.so.0 = /usr/lib/libgobject-2.0.so.0 (0x21894000) libm.so.6.1 = /lib/tls/libm.so.6.1 (0x21928000) libgmodule-2.0.so.0 = /usr/lib/libgmodule-2.0.so.0 (0x219fc000) libdl.so.2 = /lib/tls/libdl.so.2 (0x21a14000) libgthread-2.0.so.0 = /usr/lib/libgthread-2.0.so.0 (0x21a2c000) libpthread.so.0 = /lib/tls/libpthread.so.0 (0x21a44000) libglib-2.0.so.0 = /usr/lib/libglib-2.0.so.0 (0x21a7c000) libc.so.6.1 = /lib/tls/libc.so.6.1 (0x21b8c000) libXrandr.so.2 = /usr/X11R6/lib/libXrandr.so.2 (0x21e18000) libXi.so.6 = /usr/X11R6/lib/libXi.so.6 (0x21e3)
Re: [SLUG] memcmp versus strncmp
On Mon, Dec 12, 2005 at 07:57:00PM +1100, Ken Foskey wrote: Enforcing standards with gcc -ansi is a bad idea it looks like :-( This draws in the gcc builtins and they do not perform as well. You are buliding with optimisation on right (-03 or similar)? If you want fast memcmp() do it on an architecture that doesn't have the register pressure of x86, like, oh, say, Itanium :) -i [EMAIL PROTECTED] http://www.gelato.unsw.edu.au signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] memcmp versus strncmp
On Fri, Dec 09, 2005 at 11:56:14PM +1100, Ken Foskey wrote:
This is an unexpected statistic...
Subroutine using massive number of matches:
strcmp(x,y) 1.87 seconds
strncmp(x,y,6) 1.63 seconds
memcmp(x,y,6) 5.85 seconds
Ignoring the other code it is a huge overhead for using memcmp on Ubuntu
I386 as opposed to strncmp.
I would not have expected this, any ideas?
I think chances are you've got the gcc builtin memcmp there, which
looks pretty slow compared to the highly optimised glibc one.
See below, where the gcc one comes down to repz cmpsb which is
notoriously slow. -fno-builtins turns it off.
e.g.
[EMAIL PROTECTED]:/tmp$ cat test.c
#include string.h
extern int *i, *j;
int memcmptest(void)
{
return memcmp(i,j,1000);
}
[EMAIL PROTECTED]:/tmp$ gcc -c test.c
[EMAIL PROTECTED]:/tmp$ objdump --disassemble ./test.o
./test.o: file format elf32-i386
Disassembly of section .text:
memcmptest:
0: 55 push %ebp
1: 89 e5 mov%esp,%ebp
3: 57 push %edi
4: 56 push %esi
5: 83 ec 0csub$0xc,%esp
8: 8b 15 00 00 00 00 mov0x0,%edx
e: a1 00 00 00 00 mov0x0,%eax
13: 89 45 f4mov%eax,0xfff4(%ebp)
16: 89 55 f0mov%edx,0xfff0(%ebp)
19: c7 45 ec e8 03 00 00movl $0x3e8,0xffec(%ebp)
20: fc cld
21: 8b 75 f4mov0xfff4(%ebp),%esi
24: 8b 7d f0mov0xfff0(%ebp),%edi
27: 8b 4d ecmov0xffec(%ebp),%ecx
2a: f3 a6 repz cmpsb %es:(%edi),%ds:(%esi)
2c: 0f 97 c2seta %dl
2f: 0f 92 c0setb %al
32: 88 d1 mov%dl,%cl
34: 28 c1 sub%al,%cl
36: 88 c8 mov%cl,%al
38: 0f be c0movsbl %al,%eax
3b: 83 c4 0cadd$0xc,%esp
3e: 5e pop%esi
3f: 5f pop%edi
40: 5d pop%ebp
41: c3 ret
[EMAIL PROTECTED]:/tmp$ gcc -fno-builtin -c test.c
[EMAIL PROTECTED]:/tmp$ objdump --disassemble ./test.o
./test.o: file format elf32-i386
Disassembly of section .text:
memcmptest:
0: 55 push %ebp
1: 89 e5 mov%esp,%ebp
3: 83 ec 08sub$0x8,%esp
6: a1 00 00 00 00 mov0x0,%eax
b: 8b 15 00 00 00 00 mov0x0,%edx
11: 83 ec 04sub$0x4,%esp
14: 68 e8 03 00 00 push $0x3e8
19: 50 push %eax
1a: 52 push %edx
1b: e8 fc ff ff ff call 1c memcmptest+0x1c
20: 83 c4 10add$0x10,%esp
23: c9 leave
24: c3 ret
[EMAIL PROTECTED]:/tmp$
-i
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Re: [SLUG] Linux on a Dell Latitude X1
On Thu, Dec 08, 2005 at 11:17:51PM +1100, Erik de Castro Lopo wrote: Some might remember that I was looking at getting a new laptop recently. Well I ended up with a Dell Latitude X1, installed ubuntu Hoary, dist-upgraded to Breezy to get X working properly and I'm now running E17 But does it sleep (and, more importantly, wake back up)? -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] C Gurus
On Tue, Nov 22, 2005 at 10:12:07PM +1100, Crossfire wrote: IIRC, ANSI C[1] makes no guaranty as to the lifetime of literal strings when their enclosing scope finishes. I'm fairly sure ANSI C does, C99 definitely does And not all literal strings are 'static' as my code demonstrated. String literals are defined with static storage duration by definition. C99 6.4.5.5 The multibyte character sequence [string literal] is then used to initalize an array of static storage duration and length just sufficient to contain the sequence. Where static storage duration is defined in 6.2.4.3 Its lifetime is the entire execution of the program and its stored value is initalized only once, prior to program startup. So it seems quite valid (as you probably know anyway it will be put in some read only section which isn't going to go away). But the code in question will have an interesting alternative property that it will confuse every single programmer who looks at the code for the rest of eternity. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Via EPIA MII 1.2GHz Nehemiah + SUSE 10 ssh compatability issue
On Wed, Nov 16, 2005 at 03:11:18PM +1100, Grant Parnell - EverythingLinux wrote: Not sure if anyone else has used SuSE 9.3 or SuSE 10 on a Via EPIA MII with 1.2GHZ CPU but we have a machine here that's segfaulting when running ssh-keygen for example but runs fine otherwise. We have tried different RAM and hard disk and done a memtest86 for days. Is your kernel built for the Nehemiah processor? Looking at Kconfig there is an option config MVIAC3_2 bool VIA C3-2 (Nehemiah) help Select this for a VIA C3 Nehemiah. Selecting this enables usage of SSE and tells gcc to treat the CPU as a 686. Note, this kernel will not boot on older (pre model 9) C3s. What does /proc/cpuinfo say? I'd assume that doing something like ssh-keygen would try using SSE if it thought it could to speed things up and probably cause a segfault or SIGILL. Try running with LD_ASSUME_KERNEL=2.4.0 and that would bump you back to non-optimised libraries which might help. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Via EPIA MII 1.2GHz Nehemiah + SUSE 10 ssh compatability issue
On Thu, Nov 17, 2005 at 02:01:05PM +1100, Grant Parnell - EverythingLinux wrote: On Thu, 17 Nov 2005, Ian Wienand wrote: Try running with LD_ASSUME_KERNEL=2.4.0 and that would bump you back to non-optimised libraries which might help. No change. Oh well. Run it under gdb and find out what instruction it it barfing on, at least then you'll have an idea where to start. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Linux hosting in Australia?
On Sun, Nov 13, 2005 at 01:08:27PM +1100, Peter Chubb wrote: Or redwoodvirtual.com? I've *heard* that things can get a bit slow as the machines are loaded pretty high; however they certainly have good low end prices. When I looked into them around a month ago they were not accepting new sign-ups, so they must have completed expansion if they are accepting new customers now. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] latex question
On Tue, Oct 25, 2005 at 12:37:07PM +1000, Taryn East wrote:
I'm writing a template for an invoice that we will send to the customer.
It's in landscape format and has a lefthand section (with all the
details fo the order and price etc - which the customer keeps) and a
righthand section (which is a summary section that is torn off by the
customer and sent in with their payment).
I'm not sure about why the minipages overlap, but I had to do
something similar once and I used multicol to separate out the page.
It has some disadvantages (watch out putting images in, you need to
use a special float). You can see the original stuff at
http://www.gelato.unsw.edu.au/cgi-bin/viewcvs.cgi/cvs/gelato/posters/2005-SanJose/
but your example looks something like
---
\documentclass[10pt]{article}
\usepackage[a4paper,landscape,noheadfoot,margin={0.25in,0.25in}]{geometry}
\usepackage{nopageno}
\usepackage{multicol}
\begin{document}
\newcommand{\makerightpage}{
whatever\\
whatever\\
whatever\\
}
\newcommand{\makeleftpage}{
%%% Header section %%%
\begin{tabular}{lcr}
% customer details and address
Insured Name here\\
Customer name here\\
Street address here\\
Suburb, State PCD
Logo here
\begin{tabular}{ll} % policy identifiers
Date:policy date here\\
Invoice No: 0510abcdef\\
Policy No: NSW 0510 ghijkl \\
Amount: \$ AAA.aa\\
\end{tabular}
\\ %%% end of header section row %%%
\end{tabular}
}
\begin{multicols}{2}
\setlength{\columnseprule}{0.4mm}
\makeleftpage
\columnbreak
\makerightpage
\end{multicols}
\end{document}
---
try something like
$ pslatex test.tex
$ dvips -Ppdf -t landscape test.dvi
$ ps2pdf test.ps
-i
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Re: [SLUG] latex question
On Tue, Oct 25, 2005 at 02:04:40PM +1000, Taryn East wrote:
only now the column-widths are not controlled in th way they were for the
tabular environment :(
yes, multicol doesn't do column widths.
any other ideas?
Looking back at your original example, Latex is assuming you are using
a portrait page, which isn't wide enough to get all that stuff in.
Thus Latex then just shoves the boxes ontop of each other.
I think what you need to do is make sure you have something like
\usepackage[a4paper,landscape,noheadfoot,margin={0.25in,0.25in}]{geometry}
to setup landscape mode (and thus set \textwidth properly to something
nice and wide). Make sure you don't include anything like
\usepackage{a4} after it, because that will reset \textwidth.
You can check the width with the \showthe command (\showthe\textwidth)
to make sure it does look wide.
-i
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Re: [SLUG] Strange results from df
On Fri, Oct 14, 2005 at 10:54:05AM +1000, Roger Barnes wrote: [EMAIL PROTECTED]:~/$ df Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda1114879816 109103408 0 100% /mnt/seagate I can copy files onto the disk and the Used number goes up, but the Available and Use% counts have me baffled. Could this be something to do with sparse files? If so, how might I identify the culprit/s? No, you've by default got 5% of space reserved for root (so you don't fill your disks up and paint yourself into a corner). You can modify this with tune2fs. There's also an option when you're formatting. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Driver query
On Thu, Oct 06, 2005 at 08:53:39AM +0800, James wrote: Program_ 3(ABC TV Sydney AC3 , 545, 512, A660, 256) Totally unrelated to Linux, but ... I've never noticed these channels before. Does that AC3 refer to Dobly Digital, and does this mean those channels are actually broadcasting with full 5-channel surround sound? My set top box shows me an alternative digital audio stream for most channels, but when I put it through my speakers it's only ever the front two left/right. I've been wondering if they ever will broadcast the true surround sound signals. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Gentoo getting better
On Wed, Oct 05, 2005 at 10:45:33AM +1000, [EMAIL PROTECTED] wrote: We've got it running on AMD64, PIII, PIV and P-M all tuned and boy does it make a difference. Distros I've compared are Ubuntu on a PIV and Debian on AMD64. It is faster than both standard installs if compiled for the platform. Can you show us some numbers from your benchmarks? -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Your top-ten linux desktop apps
On Thu, Sep 29, 2005 at 07:39:51PM +1000, O Plameras wrote: With C on 64-bit your number will not be a problem as an integer. C integer is size 8 bytes = 64 bits. So 2 exponent 64 less 1 can be handled. This isn't correct; there are two main models for 64 bit computing. LP64 where longs and pointers are 64 bits (Linux, most UNIX?) and the Windows model where only pointers are 64 bits. Many might suggest this is because so much Windows code would break if long suddenly became 64 bits, but I think the official reason is efficiency within the API. In both cases an int is 32 bits. In both models a long long will be 64 bits, no matter what your architecture. It's no wonder people use Python/Perl/OCaml/Haskell/Smalltalk so they don't have to worry about any of this. -i [EMAIL PROTECTED] http://www.gelato.unsw.edu.au signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Your top-ten linux desktop apps
On Thu, Sep 29, 2005 at 09:42:41PM +1000, O Plameras wrote: This should be 8 bytes = 64 bits. So 2 exponent (64-1) - 1 = max int size in 64 bit machine. I think you missed my point. An int is still only 32 bits on a 64 bit machine. On a 64 bit machine running Linux a long will be 64 bits, however on Windows a long is always 32 bits. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Your top-ten linux desktop apps
On Thu, Sep 29, 2005 at 09:59:26PM +1000, O Plameras wrote: It is easy to check if one has a 64-bit machine. I'm curious to know. Have a look at the AMD64 ABI, for example http://www.x86-64.org/documentation/abi.pdf Figure 3.1 gives you the size of types. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Your top-ten linux desktop apps
On Thu, Sep 29, 2005 at 10:40:47PM +1000, O Plameras wrote: The only change from 32-bit to 64-bit machine as far as data type sizes are concerned is 'long'. Changed from 4 to 8 bytes. This resolves the argument comprehensively. This means that there is going to be minimal improvements from a 32-bit to 64-bit PCs. I had wanted to buy a 64-bit CPU, but with this I will defer. I need to check that documentation re AMD64. When thinking about why things are as they are, it's always good to consider the alternative outcome. Imagine if the size of int did increase to 64 bits. Firstly a lot of code would break. That's a bug, and would eventually be fixed after some initial pain. Suddenly every int variable now takes up twice as much space, every array of ints is twice as big. This means binary sizes increase and, more importantly, you waste a lot of your cache. How often does a loop counter overflow a 32 bit variable? To be sane people would have to reduce the size of variables they know won't overflow. So maybe you could make a short a 32 bit variable on your 64 bit machine. But now when people try to move their code between machines might find their counter becomes 16 bits, which is much more realistically overflowed. Now programmers have to be concerned about sizeof(int) and sizeof(short) to maintain portability. It would be a debacle. 64 bits is mostly about addressing; the times we need to cater for 64 bit variables that aren't addresses are limited. I'd still consider an AMD64; there are a number of architectural enhancements over x86. Of course if you want a real 64 bit architecture, pick up an Itanium from somewhere :) -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Your top-ten linux desktop apps
On Fri, Sep 30, 2005 at 08:01:59AM +1000, [EMAIL PROTECTED] wrote: Actually, just checking one 64 bit machine would not be enough. If you stick to Linux and gcc then you get fairly consistent results but C is bigger than gcc (only slightly). I'd suggest it is the other way around; gcc implements *much* more than the C standard. C99 says that the minimum size of an integer is 2 bytes, but anything bigger is OK. The real reference is the relevant ABI for the architecture/operating system combination. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Output from 64 bit machine
On Fri, Sep 30, 2005 at 10:22:33AM +1000, Benno wrote: (Of course using printf then becomes a real bitch...) What's wrong with the PRI macros in inttypes.h? -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] great code to learn from - request
On Wed, Sep 21, 2005 at 03:55:06PM +1000, Benno wrote: On Wed Sep 21, 2005 at 13:09:52 +1000, Taryn East wrote: what nobody else is going to bite? :( I think this is because great code is code is due to the absence of suckiness rather than the presence of brilliance. At least IMHO.[1] Fools ignore complexity. Pragmatists suffer it. Some can avoid it. Geniuses remove it. From SIGPLAN Notices Vol. 17, No. 9, September 1982, pages 7-13. So the best code is code you look at and say is that it - I could have done that, even though you probably couldn't have. If you're interested in systems, I'd suggest starting with an intermediate step of some good books first, the obvious ones that spring to mind are Lions' Commentary on UNIX 6th Edition, with Source Code - John Lions Advanced Programming in the UNIX Environment - Stevens TCP/IP Illustrated - Stevens Linux Kernel Development - Robert Love (top levels of the kernel) IA-64 Linux Kernel - David Mosberger (how an architecture really works) Once you've got some idea jump in and start programming something. Follow Rusty's driver tutorial from LCA, write toolbars for Mozilla, fix that annoying bug in Gnome. You'll soon see how things hang together, and identify what is good and what isn't. It's like learning a musical instrument; you can read about guitar technique (and that's certainly part of it) but you really need to sit there and strum the thing to get any good. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Accidental mouse gestures in Firefox driving me insane.
On Wed, Sep 21, 2005 at 04:42:49PM +1000, Mike MacCana wrote: Firefox keeps randomly going back. It seems to be some kind of mouse gesture triggered by my trackpad. I'd like to disable gestures in FF completely. Do you have horizontal scrolling on your trackpad? The same thing happened to me when I switched over to a mouse with horizontal scrolling. This tip http://www.macosxhints.com/article.php?story=20050821141856688lsrc=osxh fixed it for me. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] MRTG Demo data source
On Mon, Sep 12, 2005 at 10:22:06PM +1000, Richard Hayes wrote: I need to do a demo of signal graphing, so I though I would use MRTG. ... What non-SNMP / MIB2 data sources are available? It's very easy to plug an arbitrary non SNMP data source into MRTG. The output just needs to be in the format Line 1 current state of the first variable, normally 'incoming bytes count' Line 2 current state of the second variable, normally 'outgoing bytes count' Line 3 string (in any human readable format), telling the uptime of the target. Line 4 string, telling the name of the target. As an example, openupsmart (openupsmart.sf.net) when running will give status output on a port like this : [EMAIL PROTECTED]:~$ /usr/pkg/sbin/nc localhost 8740 248.0 58.0 28 days, 21 hours, 46 minutes, 35 seconds OpenUPSmart This can be snarfed into MRTG with a target like Target[ups]: `/usr/pkg/sbin/nc localhost 8740` MaxBytes[ups]: 300 Title[ups]: UPS Statistics PageTop[ups]: H1UPS Statistics/H1 YLegend[ups]: Power Statistics ShortLegend[ups] : nbsp; LegendI[ups]: nbsp;Volts LegendO[ups]: nbsp;Load options[ups]: gauge, nopercent You could use openupsmart if you wanted; there is a UPS simulator included in the source which you could quite easily modify to return some sort of reasonable random variables to make it look real. (http://openupsmart.sourceforge.net/mrtg/ups.html is a sample of actual data) Probably easier to just write your own dummy device, though. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Lappies with preinstalled Linux (was Partitioning software)
On Thu, Sep 08, 2005 at 03:55:45PM +1000, Dean Hamstead wrote: oh well just thought i would reply on my ibook running only debian linux connected via aiport card. *shrug* You, like myself, probably hit the sweet spot with Apple laptops where we have the Ornico wireless (just Airport, rather than Extreme), a Radeon chip with decent support and working suspend to RAM. These days it's all Broadcom wireless, NVidia chips (no drivers for PowerPC) and only software suspend to disk, which seems to cause as many problems as it solves. That and if BenH ever got hit by a bus (touch wood) I really wonder who else would step in to keep Linux support even where it's at. As Erik has noticed strange things can start to happen and you haven't really any clues on how to start fixing it. I certainly couldn't recommend the current crop of Apple laptops to anyone wanting to run Linux on them. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] serial to ethernet
On Mon, Sep 05, 2005 at 11:48:09AM +1000, Richard Hayes wrote: I know there are connectors that will do it but I am trying to do it with software to reduce the need for hardware. I'm not sure exactly what you are after; it might just require netcat and a pipe to /dev/ttyS0. If it's for interaction (e.g. a console) have a look at conserver, packaged in Debian as conserver-server (and conserver-client for the other end). -i [EMAIL PROTECTED] http://www.gelato.unsw.edu.au signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Bash Question - Redirection of output determined by Variable name
On Thu, Aug 04, 2005 at 03:00:49PM +1000, [EMAIL PROTECTED] wrote: The $J substitution into the last command works fine but the $R bit, which attempts to redirect the output to a file, does not. Bash seems to interpret the bit as part of the command rather than a redirection instruction. Read about expansion in the bash manual. What you want to do is eval the command. e.g. #!/bin/bash output= /tmp/output eval ls $output -i [EMAIL PROTECTED] http://www.gelato.unsw.edu.au signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Increasing the number of Inodes?
On Fri, Jul 22, 2005 at 10:49:11AM +1000, Terry Collins wrote: I've googled, man tunefs others, read the HOWTOs but I am none the wiser as to how I can increase the umber of available inodes in a partition. You can't. From mke2fs -i bytes-per-inode Specify the bytes/inode ratio. mke2fs creates an inode for every bytes-per-inode bytes of space on the disk. The larger the bytes-per-inode ratio, the fewer inodes will be created. This value generally shouldn't be smaller than the block- size of the filesystem, since then too many inodes will be made. Be warned that is not possible to expand the number of inodes on a filesystem after it is created, so be careful deciding the correct value for this parameter. So you need to move the data somewhere and re-format. -i [EMAIL PROTECTED] http://www.gelato.unsw.edu.au signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Re: Why XML bites and why it is NOT a markup language
On Fri, Jun 10, 2005 at 10:17:16AM +0100, Rev Simon Rumble wrote: Actually, if the initial spec had said all HTML pages MUST be valid XML or the browser MUST give an error and make no attempt at rendering it and this had been honoured by NCSA and Nutscrape, the web would be in a much better state. Of course, that's cloud cuckoo land. XML didn't exist, and Nutscrape would have extended the spec. Since XML wasn't around, I think it is rather the case that if HTML had paid more attention to SGML than it's tags enclosed in signs we might have had true separation of data and presentation from day 1, and DSSSL might have been something people would put on their resume. But at least these days that's starting to happen with XML. XML is so useful because it provides such good abstractions. You can define it with a DTD, whack all your data in it, walk it with XPath and display it with XSLT and some CSS. -i [EMAIL PROTECTED] http://www.gelato.unsw.edu.au signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] gnome-panel gone in Debian-unstable/Metacity
On Thu, Jun 09, 2005 at 09:39:03PM +1200, Adam Bogacki wrote: Trying 'apt-get -f install gnome-panel' as root gives me a long string of unmet dependencies which won't cut'n paste from gnome-terminal. Is this something affecting other Debian unstable users at the moment, or just me ? There are some problems with a migration to 2.10, particularly the gnome-panel package. See http://oskuro.net/blog/freesoftware/gnome-2.10-unstable-2005-06-09-21-10 -i [EMAIL PROTECTED] http://www.gelato.unsw.edu.au signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Newlines in environment variables
On Mon, May 30, 2005 at 11:30:48AM +1000, Peter Hardy wrote: xmessage -nearmouse $message Now, running this script with bash compresses $message to a single line, while zsh keeps the newlines intact. So I'm wondering how to achieve the same thing with bash. Quote $message, as in $ xmessage -nearmouse $message -i [EMAIL PROTECTED] http://www.gelato.unsw.edu.au signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] error processing ndtpd
On Wed, May 25, 2005 at 09:42:00PM +1200, Adam Bogacki wrote: I've poked around and am still a bit confused. I've attached it to see if you can spot anything. Inspection isn't really going to help in this case. You need to run it (as root, since that's what dpkg does) on your machine with the -x flag and watch the output of each step, and then debug why it fails. e.g # bash -x [shell script] -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] error processing ndtpd
On Tue, May 24, 2005 at 09:20:42PM +1200, Adam Bogacki wrote: Hi, I keep getting the following error message. Setting up ndtpd (3.1.5-6.3) ... Ydpkg: error processing ndtpd (--configure): subprocess post-installation script returned error exit status 1 Errors were encountered while processing: ndtpd Try running /var/lib/dpkg/ntpd.post with bash -x and see where it's failing. -i [EMAIL PROTECTED] http://www.gelato.unsw.edu.au signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] error processing ndtpd
On Wed, May 25, 2005 at 11:22:22AM +1200, Adam Bogacki wrote: Ian Wienand wrote: Try running /var/lib/dpkg/ntpd.post with bash -x and see where it's failing. Thanks, but my /var/lib/dpkg does not include 'ntpd.post' Wow, I suck; two errors in the one line. What I really meant was /var/lib/dpkg/info/ntpd.postinst Anyway, the general concept is to find the script that is being run and trace it. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] error processing ndtpd
On Wed, May 25, 2005 at 03:27:44PM +1200, Adam Bogacki wrote: Anyway, the general concept is to find the script that is being run and trace it. Thanks again but I can't find the ntp daemon (presumably ntpd) in /var/lib/dpkg Alright, I just reread your message and noticed that you're installing *ndtpd* rather than *ntpd*, which appear to be completely different things. The file should therefore be called /var/lib/dpkg/info/ndtpd.postinst That (barring me misreading or typing anything else) is the script that is failing. In general, when you get an error about a post-installation script failing, you can head straight to /var/lib/dpkg/info/[package].postinst and start poking around that script to see why. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] automake
On Mon, Mar 07, 2005 at 10:50:38AM +1100, Ian Su wrote: I would like to get automake to install some .h files in $(top_srcdir)/include prior to compiling the objects for my project. However, there doesn't appear to be any way to do this elegantly. If I add the rules to all-local, it gets executed after everything is compiled, does anyone know how to get anything executed before? A priori this sounds like the wrong way to do things. You can specify as many -I flags to the compiler as you want to bring in your headers. Copying them around the build tree sounds like a bad idea because they're sure to end up out of sync somehow. If you absolutely have to copy for some obscure reason you need to setup your targets correctly; your program should depend on your header and your header target should do whatever copying is required. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Finding .so's path from inside the .so at runtime?
On Fri, Feb 25, 2005 at 11:17:48AM +1100, [EMAIL PROTECTED] wrote:
Is there a standard way for a .so file to find where it was loaded from?
from man dl_iterate_phdr
The info argument is a structure of the following type:
struct dl_phdr_info {
ElfW(Addr)dlpi_addr; /* Base address of object */
const char *dlpi_name; /* (Null-terminated) name of
object
const ElfW(Phdr) *dlpi_phdr; /* Pointer to array of
ELF program headers
for this object */
ElfW(Half)dlpi_phnum; /* # of items in 'dlpi_phdr' */
};
The dlpi_name field is a null-terminated string giving the path-name
from which the shared object was loaded.
-i
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Re: [SLUG] Howcome I Have suspicious headers?
On Thu, Feb 24, 2005 at 10:37:09AM +1100, Luke Skywalker wrote: I tried to send a post, but I got a message saying I have suspicious headers. This is not the list you are looking for ... this is not the list I'm looking for ... You will email [EMAIL PROTECTED] with these problems ... I will email [EMAIL PROTECTED] with these problems ... -i [EMAIL PROTECTED] http://www.gelato.unsw.edu.au signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Prblem with bash and rsync
On Thu, Feb 10, 2005 at 10:40:45AM +1100, Jobst Schmalenbach wrote: COMMAND=$RSYNC -rlptgoD --delete --delete-excluded --exclude .snapshot --exclude \Temporary Internet Files\ /$d/ $TARGET if [ $DEBUG == 1 ]; then $ECHO $COMMAND; fi $COMMAND Try using eval around this, e.g. eval $COMMAND You need bash to re-evaluate those quotes so it understands it should be one argument. -i [EMAIL PROTECTED] http://www.gelato.unsw.edu.au signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Controlling address space layout
On Tue, Jan 18, 2005 at 01:28:51PM +1100, Benno wrote: It would be convenient for my current project if there was some way to specify where in VM the dynamic libraries ended up. You can use prelink to put shared libraries to specific virtual addresses with the --reloc-only option. -i [EMAIL PROTECTED] http://www.gelato.unsw.edu.au signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Compile tutorial
On Sun, Nov 28, 2004 at 12:27:00AM +1100, Rod Butcher wrote: Sluggers, can somebody point me to a tutorial on the various components in software building (newbie-comprehensible) :- You'll need to understand the general concept of makefiles http://www.gnu.org/software/make/manual/make.html and then the best tutorial style reference is the autobook http://sources.redhat.com/autobook/autobook/autobook_toc.html There is a bit of a learning curve. I've been getting by by ./configure, make, make install but beyond that I'm lost... e.g I untarred a source package and copied latest updated source and Makefile.am files from CVS into it and then did my standard ./configure etc. dance, which leads to link errors, so I obviously don't know what I'm doing). I need to know how/why these files are generated etc. I'm not sure why you need to copy parts of a CVS tree into a source tarball; can't you just build the CVS tree? Usually there will be a script in the root directory of the CVS tree called autogen.sh or similar that will run the autoconf tools for you. You just need to ensure the tool versions you have match what the developers are using. -i [EMAIL PROTECTED] http://www.gelato.unsw.edu.au signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] mrtg logs
On Fri, Nov 19, 2004 at 07:05:56AM +1100, Ben Donohue wrote: I'm yet to find this by RTFM but what produces the log file that MRTG makes it's graphs from? MRTG produces the log file. You would usually have mrtg setup in a cron job that runs every so often, which polls the devices and re-writes all the graphs. It must be MRTG polling the router but why is not the router not responding on that particular interface. Nothing changed on the MRTG box (as far as I can tell) so i'm assuming the router is not sending out SNMP on that particular port perhaps? Probably. Can you try rebooting it? You can run mrtg by hand with debugging options, or check where the output of the process is piped to when run via cron; usually there is something useful in that. -i [EMAIL PROTECTED] http://www.gelato.unsw.edu.au signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] Stripping Recevied: Headers on bounce
Hi, I often bounce email from mutt to remote addresses and every now and then will get back some sort of too many hops or to many forwards message (especially from Hotmail). I want some way to strip the Received: headers when I bounce the message via mutt. Anyone done that before? My initial attempt was piping to formail, but I can't figure out how to get the message back into mutt for bouncing. -i [EMAIL PROTECTED] http://www.gelato.unsw.edu.au signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] Remote scp access
On Tue, Nov 09, 2004 at 10:07:20AM +1100, Michael Lake wrote: Michael Lake wrote: 4. Other ways ? What's the easist way to allow the new user to use windows scp but not browse the filesystem. Reading up on chroot jails it seems that they are not trivial to setup. I deleted the previous parts of this thread but this question got me interested; it is not hard to do this with scponly. http://www.sublimation.org/scponly/ I run it inside a separate chroot, although it has its own options to chroot itself. It's not that hard to setup. If you setup a ssh chroot following some vague instructions like http://www.gelato.unsw.edu.au/IA64wiki/DebianSSHChroot you can make each users shell scponly and feel just about as secure as you ever can having a publicly accessible box that allows uploading. -i [EMAIL PROTECTED] http://www.gelato.unsw.edu.au signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Re: Remote scp access
On Tue, Nov 09, 2004 at 04:13:11PM +1100, Michael Lake wrote: Also one problem with scponly is that to use the chroot features you have to make it suid and the authors warns of this. Which is why I installed it in a separate ssh chroot; but I have the luxury of having full access and carte-blanche control over what I do to the box. FWIW, I've even done some hacking on it and I didn't see anything that raised my alarm bells, and with a known, generally trusted user base (like people you work with) I'd be happy to run it suid. If you trust your users enough that you'd give them shell access if they asked, but are limiting them to scp more to protect themselves, you'd probably be fine running it with it's internal chroot too. If you're giving out a key to anyone who asks, wrap up ssh in an extra chroot to be sure. As has been mentioned far too often in the last few days, security is not a one-fits-all solution. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] updating gaim apt-get
On Wed, Oct 06, 2004 at 08:47:58AM +1000, Gareth Smith wrote: To use msn I need version 0.69 or greater, the only version of gaim I can get is 0.58 and I can't run msn on this version as they say on http://gaim.sourceforge.net/faq.php#q66 That looks like the version from Debian stable. You can either search around for a 'backport' of the latest gaim to work with your system, or just upgrade your whole system. Despite the name, 'unstable' really is quite stable, and has the latest stuff to boot. How do you update apt-get to get the lates updates? I've tryed apt-get update The 10 second guide to updating is 1) edit /etc/apt/sources.list to just have two lines something like deb ftp://mirror.cse.unsw.edu.au/debian/ unstable main non-free contrib deb-src ftp://mirror.cse.unsw.edu.au/debian/ unstable main non-free contrib (change the mirror.cse.unsw.edu.au to a mirror that is closer to you; your isp's if they have one otherwise ftp.au.debian.org is a safe bet) 2) run apt-get update 3) run apt-get dist-upgrade 4) wait (it will need to download a lot) Good luck, -i [EMAIL PROTECTED] http://www.gelato.unsw.edu.au signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] installing amsn error
On Tue, Oct 05, 2004 at 12:11:12PM +1000, Gareth Smith wrote: #apt-get install amsn Sorry, but the following packages have unmet dependencies: kde: Depends: kdebase-audiolibs but it is not going to be installed or kdebase3-audiolibs but it is not installable Often with big meta packages like kde things get broken in unstable, and the best strategy is usually to wait a few days as the developers are usually aware of it. But that said it seems to work for me; try running apt-get update to make sure you've got the latest packages files? Does it do something that gaim doesn't? -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Mutt and html messages
On Mon, Sep 20, 2004 at 05:12:01PM +1000, Alexander Samad wrote: I seem to recieve a lot of email from corporate users whos client send me text and html version of the email, is there any way to tell mutt that the text version is the prefered version, right now I have to go through and delete the html version, rather annoying! Try auto_view text/plain in .muttrc. Alternatively, I like to do something like add text/html; lynx -force_html -dump %s; copiousoutput to .mailcap, and set auto_view text/html in .muttrc and you can get a pretty good view of what's happening in the html mail. -i [EMAIL PROTECTED] http://www.gelato.unsw.edu.au signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Elementary symlink question
On Mon, Sep 13, 2004 at 04:04:43PM +1000, Matthew Davidson wrote: lrwxrwxrwx 1 mdavids mdavids 12 2004-09-13 15:52 application - version/0.3/ -rw-r--r-- 1 mdavids mdavids0 2004-09-13 15:43 file drwxr-sr-x 5 mdavids mdavids 4096 2004-09-13 15:51 version [EMAIL PROTECTED]:~/test$ cd application is the equivalent of doing cd version/0.3 [EMAIL PROTECTED]:~/test/application$ ls -l ../file ls: ../file: No such file or directory Your parent directory is now version, you probably want ../../file But bash even autocompletes the name file for me! Bash remembers your old parent directory and intercepts, giving you the tab completion. Try using 'ls' and you shouldn't see the same thing. For example, go into /tmp and create a symlink called test to, say, /usr/include. Then do 'cd test' and 'cd ..' in bash and you'll be back in /tmp. Do the same thing in something like csh and you (should be) in /usr, because it doesn't keep a directory history stack but just uses chdir(). -i [EMAIL PROTECTED] http://www.gelato.unsw.edu.au signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Elementary symlink question
On Tue, Sep 14, 2004 at 09:58:59AM +1000, Matthew Davidson wrote: Funny; I've always assumed that the system treated a directory symlink as a real directory that just happens to have exactly the same contents as some other directory. I suppose I'd never put myself in a situation to find out outherwise. However, I maintain that's the way it _should_ work! Sounds like what you really want is a hard link to a directory. This has never been allowed for various reasons, but has recently come up since reiser4 has the 'file as a directory' concept. For a nice overview (as always done by Jonathan Corbet) see http://lwn.net/Articles/99408/ But you might like to try a bind mount, in your previous example doing 'sudo mount --bind application/ version/0.3/' would give you the semantics you want (i.e. ls ../file will work). -i [EMAIL PROTECTED] http://www.gelato.unsw.edu.au signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Debian sarge on vmware
On Mon, Sep 13, 2004 at 10:17:30AM +1000, Robert Tillsley wrote: Now I installed xfree68, but there is no X in that folder. Can anyone give me an idea of where to start troubleshooting? Sounds like you missed a package; try apt-get install x-window-system -i [EMAIL PROTECTED] http://www.gelato.unsw.edu.au -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] start scripts on Debian
On Thu, Sep 09, 2004 at 10:38:22AM +1000, David wrote: * --enable-[redhat/suse/gentoo/cobalt/netbsd/fhs] This option helps netatalk to determine where to install the start scripts. Can anyone suggest which option out of these might work for Debian. Or any other suggestion. FHS sounds like as good a start as any ... Second question: Having done the usual configure/make/make-install, what's the approved way to remove everything that was installed? Unless they include a make uninstall type target, you're out of luck other than picking through by hand. That's why people invented packaging systems :) PS: apt-get is not an option because the latest version doesn't seem to be available. Why don't you apt-get source netatalk and try updating the existing package to your version (I or any number of others can help, but basically just try copying the /debian directory of the downloaded source to your new tarball and run dpkg-buildpackage and see if it works). If it hasn't changed significantly it's probably pretty easy to do, and depending on how active the maintainer is maybe someone can NMU it for you. -i [EMAIL PROTECTED] http://www.gelato.unsw.edu.au signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Rebuild hda
On Thu, Jul 29, 2004 at 12:52:19PM +1000, Simon Bryan wrote: I could of course just disconnect the second HDD until the first is re-built, but felt there had to be a more logical method. Nothing could be *more* logical that removing a drive with sensitive data during a re-install. Even if you know exactly what you're doing, all it takes is a slip of the finger. Once you're done, just plug it back in and add it to fstab ... -i [EMAIL PROTECTED] http://www.gelato.unsw.edu.au signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: Need to be root to install plugins. was Re: [SLUG] Firebird Googlesearch to do Australia?
On Thu, Jul 15, 2004 at 11:05:26AM +1000, Michael Lake wrote: I just installed Firefox yesterday on my PowerBook and when I go to install plugins it just crashes and exits. Firefox 0.8 has a problem on Power where installing any extension will just crash. Firefox 0.9 is in unstable now (assuming you use Debian) so install that and you'll be right. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Networking advice please.
On Wed, Jul 14, 2004 at 01:04:44PM +1000, bill wrote: I have 3 pc's networked to an ethernet switch, which is connected to the 'Net via a modem router. All works well. Is it a four port switch? Often those things have 5 ports, but only four can be active at the same time (the extra port can be used as an uplink port, disabling usually the number 1 port). Should I be using straight-through cable or crossover cable from the wall point to the ethernet switch (I asume straight-through)? Generally PC-switch is straight through, but most equipment these days is auto-sensing and will just figure it out. -i [EMAIL PROTECTED] http://www.gelato.unsw.edu.au signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] souces.list for packages stored locally
On Tue, Jun 15, 2004 at 12:05:43PM +1000, David wrote: What entry should I put in my sources.list for packages that are stored locally If it's just one or two debs you need to use dpkg-scanpackages to greate a Packages.gz file. Explained at http://www.debian.org/doc/manuals/repository-howto/repository-howto.html If you need something for a few more packages and some level of automation you can refer to http://www.gelato.unsw.edu.au/IA64wiki/SettingUpADebianRepository -i [EMAIL PROTECTED] http://www.gelato.unsw.edu.au signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
