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/usr/sbin/logcheck: line 100: kill: (24333) - No such process
by Andreas Reschke 28 Jul '11

28 Jul '11

Hello I've installed a new mailserver with CentOS 6.0 x86_64. For the reporting I need logcheck. I've the same problem as https://bugzilla.redhat.com/show_bug.cgi?id=678436 Description of problem: I installed logcheck and now I get mails from cron with the following error message: Subject: Cron <logcheck@genius> if [ -x /usr/sbin/logcheck ]; then nice -n10 /usr/sbin/logcheck; fi [...] /usr/sbin/logcheck: line 100: kill: (24333) - No such process [root@mail ~]# rpm -qi logcheck Name : logcheck Relocations: (not relocatable) Version : 1.3.13 Vendor: Fedora Project Release : 2.el6 Build Date: Di 14 Sep 2010 10:53:25 CEST Install Date: Mi 27 Jul 2011 10:32:12 CEST Build Host: ppc05.phx2.fedoraproject.org Group : Applications/System Source RPM: logcheck-1.3.13-2.el6.src.rpm Size : 375904 License: GPLv2 Signature : RSA/8, Di 14 Sep 2010 17:50:20 CEST, Key ID 3b49df2a0608b895 Packager : Fedora Project URL : http://logcheck.org/ Summary : Analyzes log files and sends noticeable events as email [root@mail ~]# ls -l /var/log/maillog -rw-rw-rw- 1 root adm 1040633 28. Jul 11:19 /var/log/maillog [root@mail ~]# ls -l /var/log/secure -rw-r--r-- 1 root adm 10342 28. Jul 11:19 /var/log/secure [root@mail ~]# But the solution (chgrp adm /var/log/messages /var/log/secure) did't work for me. Thanks Andreas

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Booting CentOS 6 in VirtualBox on Ubuntu
by Cliff Pratt 28 Jul '11

28 Jul '11

I trying to try out CentOS 6 in an Oracle VirtualBox running on Ubuntu. Has anyone been able to get this configuration working? When I try to boot the "Live" ISO it starts to do the countdown but when it reaches zero it gets stuck - nothing else happens. No error messages and since the install never really gets going, no logs. I've checked the mailing list archive back a few months, but I've not seen anything related. Cheers, Cliff

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SOLVED Re: Booting CentOS 6 in VirtualBox on Ubuntu
by Cliff Pratt 28 Jul '11

28 Jul '11

On Wed, Jul 27, 2011 at 8:16 PM, John Hodrien <J.H.Hodrien(a)leeds.ac.uk> wrote: > On Wed, 27 Jul 2011, Cliff Pratt wrote: > >> I trying to try out CentOS 6 in an Oracle VirtualBox running on >> Ubuntu. Has anyone been able to get this configuration working? >> >> When I try to boot the "Live" ISO it starts to do the countdown but >> when it reaches zero it gets stuck - nothing else happens. No error >> messages and since the install never really gets going, no logs. >> >> I've checked the mailing list archive back a few months, but I've not >> seen anything related. > > I've installed off DVD1 and done kickstart installs off the netinstall CD on > VirtualBox 4 on CentOS5, and that works just fine. I can't see a reason why > Ubuntu would make any real difference. > > I've not tried the Live ISO. > It was a silly error. In the VirtualBox definition I hadn't enabled PAE. After that all went OK. Cheers, Cliff

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running X as root in centos 6
by Jerry Geis 27 Jul '11

27 Jul '11

When I run X as root in centos 6 I get a nice little message that "your currently trying to run as root super user" and are you sure you want to with a checkbox. I do this for a reason as a post install step, then the system reboots and it never happens again... I am trying to find how to set this checkbox which says "never ask me again" and move on... I was trying to find it in gconf-editor but have not found it. Does anyone know where it is? THanks, Jerry

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missing /dev/dsp
by David Bunt 27 Jul '11

27 Jul '11

Hey guys, If I needed to get /dev/dsp back on centos 6, how would I go about doing that. Note, I've already uninstalled pulseaudio. I've also edited /etc/modprobe.d/dist-oss.conf and uncommented: /sbin/modprobe --ignore-install snd-pcm && /sbin/modprobe snd-pcm-oss && /sbin/modprobe snd-seq-device && /sbin/modprobe snd-seq-oss But I'm getting: FATAL: Module snd_pcm_oss not found. Suggestions? -- Head Grunt

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libpri rpm version 1.4.12 for CentOS 5.6
by Kaushal Shriyan 27 Jul '11

27 Jul '11

Hi, Is libpri rpm version 1.4.12 for CentOS 5.6 made available ? [root@ ~]# rpm -qa | grep libpri libpri-1.4.11.5-1_centos5 [root@ ~]# cat /etc/redhat-release CentOS release 5.6 (Final) [root@ ~]# [root@ ~]# yum list updates | grep libpri [root@ ~]# Please suggest/guide further. Regards, Kaushal

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Package: virt-goodies - partly solved
by Victor Zele 27 Jul '11

27 Jul '11

For CentOS KVM migrations use the virt-v2v package part of base. See this link, http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Virtualiz… Am Freitag, 22. Juli 2011, 13:37:08 schrieb Timothy Kesten: > Hi Folks, > > is here someone who knows where to get the package "virt-goodies" for > CentOS6 64bit? > > I'd like to convert VMWare-images to KVM. No answers :-( I've found the sourcecode of "vmware2libvirt" (part of virt-goodies - a python-file) to convert .vmx file to .xm file for using in virt-manager. This programm works fine. Conversion of my VMWare-Image succeeded. For everything, which interests it. Bye Timothy

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HOWTO install CentOS 6 on low memory computer or virtual machine (even 192MB RAM)
by Tomasz Ostrowski 27 Jul '11

27 Jul '11

I've managed to install CentOS 6 on a 192MB virtual machine using LiveCD install-to-disk graphical method. This is not normally possible because of: - hard-coded minimum supported memory in Anaconda installer - it will show a message "You do not have enough RAM to install CentOS Linux on this machine" if you try or force you to use seriously crippled text installer; - a bug in Anaconda installer, which prevents it from using swap during installation. I think it would be useful to be able to install CentOS 6 (or Scientific Linux 6 or RedHat Enterprise Linux - RHEL 6) on low memory old computer or laptop, as it can be very capable firewall, home www server, proxy etc. So the procedure is as follows: 1. Boot to 32-bit CentOS LiveCD (CentOS-6.0-i386-LiveCD.iso) in graphical mode (if you have at least 256MB RAM) or text mode (if you have less than 256MB RAM). 2. Login as root. 3. Edit a file /usr/sbin/anaconda - using vim in text mode or gedit in graphical mode - search for "within" and modify function "within_available_memory" adding a line "return True" like this: def within_available_memory(needed_ram): return True # kernel binary code estimate that is # not reported in MemTotal by /proc/meminfo epsilon = 15360 # 15 MB return needed_ram < (iutil.memInstalled() + epsilon) This would get rid of artificial hard-coded memory requirement. 4. Edit a file /usr/lib/anaconda/storage/__init__.py - search for 4th occurrence of "swapoff" and modify a fragment of function "umountFilesystems" from: for device in devices: if not device.format.mountable and \ (device.format.type != "swap" or swapoff): continue to: for device in devices: if not (device.format.mountable and \ (device.format.type != "swap" or swapoff)): continue (add parentheses - left one after "if not" and right one after "or swapoff"). This would fix a bug in installer. 5. Run "liveinst" which should start graphical installer. 6. During installation create swap partition so that you have at least 1GB of available memory (RAM+swap) (default setup should suffice, but I personally do not recommend it as it used LVM, which AFAIK prevents disks from using barriers). The bug is reported upstream: https://bugzilla.redhat.com/show_bug.cgi?id=708966 but for Fedora Linux. Regards Tometzky -- ...although Eating Honey was a very good thing to do, there was a moment just before you began to eat it which was better than when you were... Winnie the Pooh

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really large file systems with centos
by John R Pierce 27 Jul '11

27 Jul '11

I've been asked for ideas on building a rather large archival storage system for inhouse use, on the order of 100-400TB. Probably using CentOS 6. The existing system this would replace is using Solaris 10 and ZFS, but I want to explore using Linux instead. We have our own tomcat based archiving software that would run on this storage server, along with NFS client and server. Its a write once, read almost never kind of application, storing compressed batches of archive files for a year or two. 400TB written over 2 years translates to about 200TB/year or about 7MB/second average write speed. The very rare and occasional read accesses are done by batches where a client makes a webservice call to get a specific set of files, then they are pushed as a batch to staging storage where the user can then browse them, this can take minutes without any problems. My general idea is a 2U server with 1-4 SAS cards connected to strings of about 48 SATA disks (4 x 12 or 3 x 16), all configured as JBOD, so there would potentially be 48 or 96 or 192 drives on this one server. I'm thinking they should be laid as as 4 or 8 or 16 seperate RAID6 sets of 10 disks each, then use LVM to put those into a larger volume. About 10% of the disks would be reserved as global hot spares. So, my questions... A) Can CentOS 6 handle that many JBOD disks in one system? is my upper size too big and I should plan for 2 or more servers? What happens with the device names when you've gone past /dev/sdz ? B) What is the status of large file system support in CentOS 6? I know XFS is frequently mentioned with such systems, but I/we have zero experience with it, its never been natively supported in EL up to 5, anyways. C) Is GFS suitable for this, or is it strictly for clustered storage systems? D) anything important I've neglected? -- john r pierce N 37, W 122 santa cruz ca mid-left coast

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Error updating CentOS 6 kernel
by Mark 26 Jul '11

26 Jul '11

I finally was able to create a VM in which to load and "play" with CentOS 6, and the first time I went to update the kernel I ran into this: Downloading Packages: kernel-2.6.32-71.29.1.el6.x86_64.rpm | 22 MB 01:11 Running rpm_check_debug Running Transaction Test Transaction Test Succeeded Running Transaction Installing : kernel-2.6.32-71.29.1.el6.x86_64 1/1 grubby fatal error: unable to find a suitable template What does that mean and how do I fix it?

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