Discuss April 2006

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257 participants
318 discussions

DUP! on ping reply
by Matt Arnilo S. Baluyos (Mailing Lists) 09 Apr '06

09 Apr '06

Hello List, I'm running a ping command to monitor our connection to the Internet. Around yesterday, I was getting a lot of (DUP!) text on the replies. Would anyone know what that means? -- Stand before it and there is no beginning. Follow it and there is no end. Stay with the ancient Tao, Move with the present.

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Several problems upgrading CentOS 4.1 to 4.3
by Ale Feltes Quenhan 09 Apr '06

09 Apr '06

I had a CentOS 4.1 installation (LVM over RAID1), and tried to do an update to the 4.3 release. Nothing too fancy, I did all the partitions with the graphical installer for the 4.1 Version. First, the installer did not find the previos installation, then I tried with the "upgradeany" option to the kernel, and from there the update ran apparently with no problem. When the boot loader section came, the setup was not able to find the previous working grub configuration, and the "update boot loader" option was disabled, so I marked the "new boot loader configuration" (don't remember the exact string. Then the installation process ended, and I did reboot. The "classic" "Error 15: File not found", from grub came. The description line was indeed, for the 2.6.9-34 (centos 4.3's relase), but I could not boot the system. I went into the "linux rescue" and from there, I started to find out some more weird stuff. First, the kernel package was not installed correctly, the files. /boot/* and /lib/modules/* weren't there, there was no entry on the rpm database, in fact the only probe that the kernel was "installed" was the grub entry. I tried to rebuild my old grub configuration, and boot with the previous kernel version I had. (The rescue disk, did not let me mount the cdrom, and I was without Internet to find out how to enable de /dev entry to acomplish the task). With the old kernel config, I could start my server, but I could not login from the console (tty*). Then I had to reboot in single mode, and from there perform the kernel installation from the 4.3's cdrom. /var/log/messages had this line for every login attempt: login [1234]: Module unknown. As this is a production server, I checked for all the services (ldap, samba, mysql, apache, etc.) and there where all working fine. I could log in from sshd without any problem (besides the bunch I'm writing here of course). Finally, when I checked on all the services and the console login problem, the rest was working as before. I went then to the "yum check-update", and found some "pam-*" update, so I did the corresponding "yum update". After pam's update, I could login again from the console, by the way "crond" tasks weren't working either, when console login was not working. That is not the end of this Crypt's Tale :( Now I have the system, running 4.3, yum does not report any update, but I have several duplicated rpm installed. :( I'm willing to try all this again, in a VMware, just to convince myself that I'm not crazy, and that ghosts does not exist :) upgrade.log has several lines like this: Upgrading kernel-2.6.9-34.EL.i686. error: %pre(kernel-2.6.9-34.EL.i686) scriptlet failed, exit status 255 error: install: %pre scriptlet failed (2), skipping kernel-2.6.9-34.EL Upgrading kernel-smp-2.6.9-34.EL.i686. error: %pre(kernel-smp-2.6.9-34.EL.i686) scriptlet failed, exit status 255 error: install: %pre scriptlet failed (2), skipping kernel-smp-2.6.9-34.EL where the pre-install script fail, but how come the installer did not reported any problem during installation? I'm not a newbie, I have quite a while working with linux, and I just want to aware people who are going to perform an update, skipping some version in between or perhaps moving to 4.3 to be very carefull in the process. I think this was a experience that was worth telling and researching to find out what really happend. Best Regards Ale

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Some quick mrtg help
by Joe Klemmer 09 Apr '06

09 Apr '06

Ok, I'm having a major brain hemorrhage or something. I just can't get mrtg setup on my box. I've done it before and it's not like it's brain surgery but there's a mental block or something that I just can't get around. All I want to do is have a nice, simple graph of the traffic on the box and the gateway in the standard day/week/month/year thing. I've got the mrtg rpm installed and it's all there. Could someone just give me a quick kickstart on this? Just something to dislodge the blockage. I'd be forever in your debt. Thank you, Joe

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Webcam software
by Thomas E Dukes 09 Apr '06

09 Apr '06

Hello, I have a wireless webcam, Linksys WVC11B, that has its own internal network ip address. Is there any CentOS/Linux software that will allow me to capture the image and view it from the outside? TIA

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Updated Yum Docs
by Mike Stankovic 08 Apr '06

08 Apr '06

The docs in http://mirror.centos.org/centos/4/docs/ do not reflect yum of today ie the yum plugins. Where can updated yum docs be found? By browsing lists such as fedora-devel, centos one can see how the plugins have "stumbled in" but newbies/anyone wanting to pickup on the new features has nothing to read. Note there are yumex docs at the above location but my query relates to yum $ grep yum /var/log/rpmpkgs centos-yumconf-4-4.5.noarch.rpm yum-2.4.2-2.centos4.noarch.rpm yum-plugin-fastestmirror-0.2.4-3.c4.noarch.rpm yum-plugin-protectbase-1.1-1.c4.noarch.rpm yum-utils-0.5-1.c4.noarch.rpm yumex-0.99.11-1.0.c4.noarch.rpm ----------------------------------------------- Improve the mailing list by performing a simple search before posting and reading the faq/etiquette. Thank you!! __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

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SELINUX?
by Chris Peikert 08 Apr '06

08 Apr '06

While downloading almost all the guilds I came across a SELINUX Guide. Whats that for?

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Re: How to query the new style mirrorlist ?
by Steven Shiau 08 Apr '06

08 Apr '06

Hi Karanbir: I suggest it's better to have releasever=4.3 work for the new mirrorlist, since releasever=4.3 is working with baseurl, i.e baseurl=http://mirror.centos.org/centos/4.3/os/i386/ It's better to be consistent that releasever=4.3 works with new mirrorlist, i.e. mirrorlist=http://mirrorlist.centos.org/?release=4.3&arch=i386&repo=os Thanks. -- Steven

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cheep laser printer recomendations
by rado 07 Apr '06

07 Apr '06

Hi! I would like to hear what printers go good w/our operating system. While back, I should have checked w/y'all like I'm doing now but I just went ahead and bought a Konica-Minolta PagePro 1350W. Now that W at the end of 1350 is a huge word that means WINDOWS! grrrr! It's a great printer 21pgs/min etc but it doesn't like linux at all and their tech spt will tell you as much. I googled round while back...there is some stuff there w/it and windows but I have had no luck. I got it sold for what I pd. 150 bucks and now I want something good that we know works really well w/linux.. Whatcha all think? thx John Rose

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RE: [CentOS] heartbeat, drbd init scripts and chkconfig
by Nielsen, Steve 07 Apr '06

07 Apr '06

(sorry to keep top posting... outlook sucks). Johnny, The approach we took was to use the yum plugin protectbase since we have our own internal repository. I noticed when we protected the repository the plugin prints out "protected N RPMs" but does not print out what it protected (even with higher debugging). I thought it would be useful to have it print the package names/repos on protected RPMs. So, I patched the protect base plugin to do that. I would like to submit the patch. Would that patch go to you or somewhere else? BTW, thanks for your help on this. Thanks, Steve -----Original Message----- From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On Behalf Of Johnny Hughes Sent: Friday, April 07, 2006 2:36 PM To: CentOS ML Subject: RE: [CentOS] heartbeat, drbd init scripts and chkconfig On Fri, 2006-04-07 at 14:57 -0400, Nielsen, Steve wrote: > Johnny, > > I applied the patch (by hand since it would not apply cleanly) to 4.3's > chkconfig and it appears to fix the issue I was having. > > Generally, what are the next steps with this type of situation ? Does > centos patch and release or wait for redhat to patch and release? We will wait for RH to patch this issue. You can use the older chkconfig and ntsysv from my 4.2 link or patch yourself. > > If we decide internally to patch chkconfig rpm ourselves what are the > best practices to prevent over ride of a new chkconfig from you guys > which may not have the patch applied? The best way to prevent overwriting is to exempt the package from updates until it is fixed...but I suspect that the patch will be in any new version. If you use yum for updates, edit /etc/yum.conf and add a line that says: exclude=chkconfig ntsysv OR if you use up2date, edit the file /etc/sysconfig/rhn/up2date and change this line: pkgSkipList=kernel*; to this: pkgSkipList=kernel*;chkconfig;ntsysv; Thanks, Johnny Hughes > > -----Original Message----- > From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On > Behalf Of Johnny Hughes > Sent: Friday, April 07, 2006 1:25 PM > To: CentOS ML > Subject: Re: [CentOS] heartbeat, drbd init scripts and chkconfig > > On Fri, 2006-04-07 at 13:17 -0400, Nielsen, Steve wrote: > > Hi, > > > > ... snip ... > > To re-create this problem just install the 2 packages (heartbeat and > > drbd) then chkconfig off one and chkconfig list both services. > > > > OK ... I can confirm this problem ... turning off one of these turns on > the other. > > No idea why. > > The older version of chkconfig and ntsysv (from 4.2) does not have this > problem: > > http://vault.centos.org/4.2/os/i386/CentOS/RPMS/ > > I suspect that this is also caused by this bug: > https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=182729 > > Thanks, > Johnny Hughes > _______________________________________________ > CentOS mailing list > CentOS(a)centos.org > http://lists.centos.org/mailman/listinfo/centos > >

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kernel panics on bootup
by Fong Vang 07 Apr '06

07 Apr '06

Is there a way to disable the auto reboot when the kernel panics during bootup? I tried passing "panic=0" using grub but it still reboots automatically. I need to at least pause it long enough to read the screen to determine the cause of the panic. Thanks for any help.

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Discuss April 2006