Discuss

discuss@lists.centos.org

34753 discussions

Safe method to remove old kernels
by Scott Moseman 12 Oct '07

12 Oct '07

# rpm -qa | grep kernel-2 | sort kernel-2.6.9-42.0.10.EL kernel-2.6.9-42.0.2.EL kernel-2.6.9-42.0.3.EL kernel-2.6.9-42.0.8.EL kernel-2.6.9-42.EL kernel-2.6.9-55.0.2.EL kernel-2.6.9-55.0.6.EL kernel-2.6.9-55.0.9.EL kernel-2.6.9-55.EL I'm running the most recent kernel available, and I've never had a problem with any past kernels, so I don't believe there's any reason to keep all of them. I guess kernels get a fresh install instead of an upgrade? Can I safely rpm-e the old kernel packages? Should this be something I do through yum instead? Some of my CentOS servers have even more old kernels than this sample. Thanks, Scott

6 6

question(s) about LVM snapshots
by Tony Schreiner 12 Oct '07

12 Oct '07

I've recently begun to try out LVM snapshots and I have 2 things I'm wondering about My intention is to run backups off the snapshot. As a first iteration, I left 15% of the disk for the snapshot LV. 1. The HOWTO instructions suggest that the snapshot is in effect as long as the snapshot LV exists, and use lvremove to disable the snapshot. Is this the proper way? 2. I chose 15% because the disk is not that active and I think it will be plenty for the duration of the backup I'm doing. Is there a way to track how much space the snapshot is actually using? Cheers, Tony Schreiner Biology Department Boston College

3 4

Can't get XFS enabled on Centos 5.0
by Dan Carl 12 Oct '07

12 Oct '07

I anm trying to enable XFS with no success. I followed the instructions provided in http://wiki.centos.org/Repositories/CentOSPlus I installed the new kernel. Example: 2.6.18-8.1.14.el5.centos.plus I also installed these packages as described in a post I found yum install --enablerepo=centosplus xfsprogs xfsprogs-devel lsmod shows nothing about XFS I would image there are others out there running XFS on Centos boxes. Could you please help. ps. Just joined the list(switching over from Fedora). I recognised the name Scott Silva from the Mailscanner list I also belong to. Small world. Where does he find the time?

4 4

Asus P5B-VM DO board?
by David Mackintosh 12 Oct '07

12 Oct '07

Anyone had any success with or hints for a system based on the Asus P5B-VM DO board, or the Intel Q965 (with its associated Intel GMA 3000 VGA chip) in general? I had to put pci=nommconf in order to get the installer (CentOS 4.5) and the installed system to boot, but I can't get the graphics to work. Following the instructions at the Intel website http://www.intellinuxgraphics.org/install.html ends with a compilation error: # cd drm/linux-core/ # make make -C /lib/modules/2.6.9-55.0.9.ELsmp/source SUBDIRS=`pwd` DRMSRCDIR=`pwd` modules make[1]: Entering directory `/usr/src/kernels/2.6.9-55.0.9.EL-smp-x86_64' CC [M] /root/intel/drm/linux-core/drm_agpsupport.o In file included from /root/intel/drm/linux-core/drmP.h:168, from /root/intel/drm/linux-core/drm_agpsupport.c:34: /root/intel/drm/linux-core/drm_compat.h:114: warning: static declaration of 'kcalloc' follows non-static declaration include/linux/slab.h:103: warning: previous declaration of 'kcalloc' was here /root/intel/drm/linux-core/drm_agpsupport.c: In function `drm_agp_populate': /root/intel/drm/linux-core/drm_agpsupport.c:531: warning: implicit declaration of function `phys_to_gart' /root/intel/drm/linux-core/drm_agpsupport.c: In function `drm_agp_init_ttm': /root/intel/drm/linux-core/drm_agpsupport.c:643: error: structure has no member named `bridge' make[2]: *** [/root/intel/drm/linux-core/drm_agpsupport.o] Error 1 make[1]: *** [_module_/root/intel/drm/linux-core] Error 2 make[1]: Leaving directory `/usr/src/kernels/2.6.9-55.0.9.EL-smp-x86_64' make: *** [modules] Error 2 -- /\oo/\ / /()\ \ David Mackintosh | dave(a)xdroop.com | http://www.xdroop.com

2 2

RPMforge metadata problems
by Dag Wieers 12 Oct '07

12 Oct '07

Hi, Yesterday evening I added a TIMESTAMP to the root of my tree in order to follow up on the correctness of mirrors. And after 12 hours more than 50% of the mirrors do not have that TIMESTAMP file. It is possible that it is filtered out, so the test is not at all valid. I am going to reduce the number of mirrors and only add the ones that have a recent TIMESTAMP. However since information on why this happens (or when this happens) is scarce, I am not sure if reducing the mirrorlist will be effective. So hopefully, after this weekend the problems some of you have seen with Yum and the mirrorlist will be a problem of the past. -- -- dag wieers, dag(a)wieers.com, http://dag.wieers.com/ -- [Any errors in spelling, tact or fact are transmission errors]

2 1

How to enable my RAID again
by Theo Band 12 Oct '07

12 Oct '07

Hi I have setup software RAID two years ago using FC3 using the graphical installer (RAID1). In the mean time I installed CENTOS4.5 and everything is running fine. At least that was my perception. It now turns out that raid is not working and that LVS just finds 4 partitions from four disks and that's it.: /dev/sda2 VolGroup00 lvm2 a- 94.88G 0 /dev/sdb1 VolGroup00 lvm2 a- 94.94G 10.00G /dev/sdc1 VolGroup00 lvm2 a- 94.94G 74.94G /dev/sdd1 VolGroup00 lvm2 a- 94.94G 70.81G These are 4 disk of each 200GB, and the disks have these partitions: Using /dev/sda (parted) print Disk geometry for /dev/sda: 0.000-194481.000 megabytes Disk label type: msdos Minor Start End Type Filesystem Flags 1 0.031 101.975 primary ext3 boot 2 101.975 97284.243 primary lvm 3 97284.243 194474.355 primary raid Disk geometry for /dev/sdb: 0.000-194481.000 megabytes Disk label type: msdos Minor Start End Type Filesystem Flags 1 0.031 97237.177 primary boot, lvm 2 97237.178 194474.355 primary raid Disk geometry for /dev/sdc: 0.000-194481.000 megabytes Disk label type: msdos Minor Start End Type Filesystem Flags 1 0.031 97237.177 primary boot, lvm 2 97237.178 194474.355 primary raid Disk geometry for /dev/sdd: 0.000-194481.000 megabytes Disk label type: msdos Minor Start End Type Filesystem Flags 1 0.031 97237.177 primary boot, lvm 2 97237.178 194474.355 primary raid So my feeling is that I need to setup the RAID again, but I don't want to make any mistakes here, since this is a live system working fine. I tried to read the mdadm manual but it's not quit clear to me what to do. # mdadm -A --scan -v mdadm: No arrays found in config file Shows I have to do more. The previous fedora installation is still around, but is doesn't contain a /etc/mdadm.conf file. Can anyone help me with some steps to take to get it running again. I do have backups, but if things go wrong restoring takes several hours. Thanks, Theo PS. Send for the third time. Could it be that posting is limited to email addresses that are subscribed to the list?

3 6

xen in production servers
by Roberto Pereyra 12 Oct '07

12 Oct '07

Hello A simple question Is virtualization (Xen) in CentOS stable for big developments ? Somebody is using it for important servers ? Would have to wait for an update? Thanks in advance roberto -- Ing. Roberto Pereyra ContenidosOnline http://www.contenidosonline.com.ar Get secure managed email for your own domain with Hushmail Business - http://www.hushmail.com/business?l=503&a=3211

7 7

CentOS-announce Digest, Vol 32, Issue 8
by centos-announce-request＠centos.org 12 Oct '07

12 Oct '07

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit http://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. CESA-2007:0909 Moderate CentOS 4 x86_64 kdelibs - security update (Johnny Hughes) 2. CESA-2007:0909 Moderate CentOS 4 i386 kdelibs - security update (Johnny Hughes) 3. CESA-2007:0905 Moderate CentOS 4 x86_64 kdebase - security update (Johnny Hughes) 4. CESA-2007:0905 Moderate CentOS 4 i386 kdebase - security update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Thu, 11 Oct 2007 07:12:09 -0500 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CESA-2007:0909 Moderate CentOS 4 x86_64 kdelibs - security update To: CentOS-Announce <centos-announce(a)centos.org> Message-ID: <470E1319.4000908(a)centos.org> Content-Type: text/plain; charset="iso-8859-1" CentOS Errata and Security Advisory 2007:0909 https://rhn.redhat.com/errata/RHSA-2007-0909.html The following updated files have been uploaded and are currently syncing to the mirrors: x86_64: kdelibs-3.3.1-9.el4.i386.rpm kdelibs-3.3.1-9.el4.x86_64.rpm kdelibs-devel-3.3.1-9.el4.x86_64.rpm src: kdelibs-3.3.1-9.el4.src.rpm

1 0

apt-cacher for CentOS
by James A. Peltier 12 Oct '07

12 Oct '07

Hi All, Is there something similar to apt-cacher available for CentOS? I would like to ensure that an application is only downloaded once to the network and not hundreds of times. If there isn't an equivalent, would someone please point me in the direction of how I might accomplish this with CentOS? -- James A. Peltier Technical Director, RHCE SCIRF | GrUVi @ Simon Fraser University - Burnaby Campus Phone : 778-782-3610 Fax : 778-782-3045 Mobile : 778-840-6434 E-Mail : jpeltier(a)cs.sfu.ca Website : http://gruvi.cs.sfu.ca | http://scirf.cs.sfu.ca MSN : subatomic_spam(a)hotmail.com

10 19

CentOS 5 LiveCD better than the real one?
by Radu-Cristian FOTESCU 12 Oct '07

12 Oct '07

Folks, I am terribly puzzled by an issue reported as bug 2381 [http://bugs.centos.org/view.php?id=2381] definitely an upstream bug, as it does the same under X/OS 5 and StartCom 5. Simply put: Hibernation fails with horrendous I/O errors after swsusp starts dumping to swap. What bugs me is that hibernating from the CentOS 5 LiveCD *works*!!! (on the same hardware) How could I investigate to see what is the relevant difference between the LiveCD and the installed system, WRT suspend-to-disk? It has been said that "CentOS 5 i386 Live CD is based on the ADIOS Live CD Project", but also that "CentOS Project would like to thank Patrice Guay for the creation of this CD". Who is supposed to know better about this issue? Also, how could I check if upstream has a similar bug report? I don't have any RHN acct. It's a shame that RHEL5 && clones fail to work properly with a specific laptop (Acer Travelmate 5310/5320/5710/5720 have the same architectural design), but an ad-hoc LiveCD works! Thanks, R-C --------------------------------- Ask a question on any topic and get answers from real people. Go to Yahoo! Answers.

3 5

Jump to page:

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

Discuss