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crond sometimes launches a child process?
by Rafał Radecki 16 Sep '13

16 Sep '13

Hi All. I monitor number of crond processes on my machines. On one of them I have 2 crond processes for a short period of time (few minutes) everyday. It is at the same time when one jobs starts to run - a sphinx indexer. What are the possible causes of crond running a child crond process? Best regards, Rafal.

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Final Term on CentOS
by Fabrizio Di Carlo 16 Sep '13

16 Sep '13

Hello to all, broswing on Internet I've found this very smart Terminal Emulator and I think that can be useful for someone of you. The address of the project is http://finalterm.org/ . Someone use it? Regards, Fabrizio -- "The intuitive mind is a sacred gift and the rational mind is a faithful servant. We have created a society that honors the servant and has forgotten the gift." (A. Einstein) "La mente intuitiva è un dono sacro e la mente razionale è un fedele servo. Noi abbiamo creato una società che onora il servo e ha dimenticato il dono." (A. Einstein) Fabrizio Di Carlo

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repo for revisor/pungi
by Rajagopal Swaminathan 16 Sep '13

16 Sep '13

Greetings, I am almost tearing my hear out searching for revisor for Centos 6. I am aware that SL6 has it. The question is safe to use it? It seems fedorahosted.org or fedora unity does not have it... http://files.revisor.fedoraunity.org/ return more or less a blank screen Any help is appreciated. -- Regards, Rajagopal

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grub command line
by Ahmad AlTwaijiry 15 Sep '13

15 Sep '13

Hello Everyone I have a remote CentOS 6.4 server (with KVM access), when I received the server it was running with LVM on single disk (sda) I managed to remove LVM and install raid 1 in sda and sdb disks the mirroring is working fine, my only issue now is that everytime I reboot the server I got the grub command line and I have manually boot using comand grub> configfile (hd1,0)/grub/grub.conf OR grub> configfile (hd0,0)/grub/grub.conf then it will boot fine without any error. Any idea how can I make it auto boot ? I tried almost everything I can find in the internet. Note: each disk (sda & sdb) is 2TB size, could this be the problem? . # df -h Filesystem Size Used Avail Use% Mounted on /dev/md2 1.8T 1.1G 1.7T 1% / tmpfs 16G 0 16G 0% /dev/shm /dev/md0 1.9G 69M 1.8G 4% /boot # cat /proc/mdstat Personalities : [raid1] md2 : active raid1 sda3[2] sdb3[0] 1940882240 blocks super 1.2 [2/2] [UU] md1 : active raid1 sdb2[0] sda2[2] 10482176 blocks super 1.2 [2/2] [UU] md0 : active raid1 sdb1[0] sda1[1] 2008000 blocks [2/2] [UU] unused devices: <none> # fdisk -l /dev/sda Disk /dev/sda: 2000.4 GB, 2000398934016 bytes 255 heads, 63 sectors/track, 243201 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000b0530 Device Boot Start End Blocks Id System /dev/sda1 * 1 250 2008093+ 83 Linux /dev/sda2 251 1556 10490445 82 Linux swap / Solaris /dev/sda3 1557 243201 1941013462+ fd Linux raid autodetect # fdisk -l /dev/sdb Disk /dev/sdb: 2000.4 GB, 2000398934016 bytes 255 heads, 63 sectors/track, 243201 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0xadb3bd62 Device Boot Start End Blocks Id System /dev/sdb1 * 1 250 2008093+ fd Linux raid autodetect /dev/sdb2 251 1556 10490445 82 Linux swap / Solaris /dev/sdb3 1557 243201 1941013462+ fd Linux raid autodetect # cat grub.conf # grub.conf generated by anaconda # # Note that you do not have to rerun grub after making changes to this file # NOTICE: You have a /boot partition. This means that # all kernel and initrd paths are relative to /boot/, eg. # root (hd0,0) # kernel /vmlinuz-version ro root=/dev/mapper/vg_srv6953-lv_root # initrd /initrd-[generic-]version.img #boot=/dev/sda default=0 timeout=5 splashimage=(hd1,0)/grub/splash.xpm.gz hiddenmenu title CentOS (2.6.32-358.18.1.el6.x86_64) root (hd1,0) kernel /vmlinuz-2.6.32-358.18.1.el6.x86_64 ro root=/dev/md2 KEYBOARDTYPE=pc KEYTABLE=us LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 crashkernel=auto rhgb quiet rd_retry=20 initrd /initramfs-2.6.32-358.18.1.el6.x86_64.img title CentOS (2.6.32-358.el6.x86_64) root (hd1,0) kernel /vmlinuz-2.6.32-358.el6.x86_64 ro root=/dev/md2 KEYBOARDTYPE=pc KEYTABLE=us LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 crashkernel=auto rhgb quiet initrd /initramfs-2.6.32-358.el6.x86_64.img

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viirt-who Problem or my mistake ?
by Günther J. Niederwimmer 15 Sep '13

15 Sep '13

Hello, I am new on centos and have installed a KVM Server, now on my host i have on a new start a Error from virt-who and virt-who never starts. root@bbs init.d]# service virt-who start virt-who starten: Traceback (most recent call last): File "/usr/share/virt-who/virt-who.py", line 33, in <module> from subscriptionmanager import SubscriptionManager, SubscriptionManagerError File "/usr/share/virt-who/subscriptionmanager.py", line 24, in <module> import rhsm.connection as rhsm_connection ImportError: No module named rhsm.connection [FEHLGESCHLAGEN] Is some missing or have I installed to much ;) -- mit freundlichen Grüßen / best Regards, Günther J. Niederwimmer

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audio tagtool vs recent glibc update
by wwp 15 Sep '13

15 Sep '13

Hello there, is it me or a recent glibc update in CentOS6 did break audio tagtool? It now shows utf8 conversion errors and crashes. A rebuild from the sources didn't help. Regards, -- wwp

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Building CentOS 6.2 custom install media
by Daniel Drake 14 Sep '13

14 Sep '13

Hi, For the OLPC school server ("XS") we are planning to move from our dated F9 setup to CentOS 6.2. Thanks for all the effort involved in producing this distro. One important part of this project is a 'respin' of the install media - we need to add a handful of packages from external repositories, and maybe run a command late in the install. Are the scripts/configurations used to produce the CentOS official CD/DVDs available? I guess this would be our most reliable/sensible starting point. I am familiar with pungi, kickstart, anaconda, etc, so just a simple git link would be enough to get me started. Thanks, Daniel

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Dojo London 2013
by Julio Martinez 14 Sep '13

14 Sep '13

Thank you Karanbir and everyone who came to ITV for making CentOS Dojo a great success. It was a pleasure to have you all. Julio Martinez </PRE><a href="http://www.itv.com"><img src="https://lh5.googleusercontent.com/-YJsNOaY5C2A/UPOvkVzskII/AAAAAAAAAKU/3Vqc…"/></a> <br><br> </PRE><a href="http://www.itv.com"><img src="https://lh5.googleusercontent.com/-jry69XRAzXQ/UjL2Ymeg7nI/AAAAAAAAAj0/3x0M…"/></a> <br><br> <div style="font-size: x-small">ITV plc (Registration No. 4967001) (ITV) is incorporated in England and Wales with its registered office at The London Television Centre, Upper Ground, London SE1 9LT. Please visit the official ITV website at www.itv.com for the latest company news. The contents of this email and any attachments are confidential, may be privileged, may be subject to copyright and are intended solely for the use of the individual to whom they are addressed. If you have received this email and you are not the intended recipient please notifypostmaster(a)itv.com and delete this email and you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this email are strictly prohibited. Although ITV routinely screens for viruses, recipients should scan this email and any attachments for viruses. ITV makes no representation or warranty that this email or any of its attachments is free of viruses or defects and does not accept any responsibility for any damage caused by any virus or defect transmitted by this email. ITV reserves the right to monitor all e mails and the systems upon which such e mails are stored or circulated. This email does not conclude a binding agreement. Any views or opinions presented in this email are solely those of the author and do not necessarily represent those of ITV. Thank You

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Cloning CentOS workstations
by Glenn Eychaner 13 Sep '13

13 Sep '13

I manage a set of CentOS operations workstations which are all clones of each other (3 "live" and 1 "spare" kept powered down); each has a single drive with four partitions (/boot, /, /home, swap). I've already set up cron'd rsync jobs to copy the operations accounts between the workstations on a daily basis, so that when one fails, it is a simple, quick process to swap in the spare, restore the accounts from one of the others, and continue operations. This has been successfully tested in practice on more than one occasion. However, when I perform system updates (about once a month), I like to create a temporary "clone" of the system to an external drive before running the update, so that I can simply swap drives or clone back if something goes horribly wrong. I have been using "CloneZilla" to do this, but it can take a while since it blanks each partition before copying, and requires a system shutdown. Question 1: Would it be sufficient to simply use CloneZilla once to initialize the backup drive (or do it manually, but CloneZilla makes it easy-peasy), and then use "rsync -aHx --delete" (let me know if I missed an important rsync option) to update the clone partitions from then on? I am assuming that the MBR typically doesn't get rewritten during system updates, though "/etc/grub.conf" obviously does get changed. Suppose I want to store more than one workstation on a single drive (easy), and be able to boot into any of the stored configurations (hard). Here's what I thought of: 1) Create a small "master" partition which contains a bootloader (such as a CentOS rescue disk), and a single "swap" partition. 2) Create one partition "set" per workstation (/boot, /, /home, excluding swap). Obviously, these will all likely be logical, and each workstation must use unique labels for mounting partitions. 3) On the "master" partition, modify the bootloader menu to allow one to chainload the /boot partitions for each configuration. (This is the "Voila!" step that I haven't fully figured out.) Question 2: Is there a better way to do the above? How do I perform the "Voila!" step, i.e. what's the right chainload command for this? Also, the chainloaded partitions are logical; is this OK? I also have a single off-site NAS disk which contains clones of all the critical workstations on-site. Most of them are Macs, so I can use sparseimages on the NAS for the clones and get easy-peasy incremental clones. I also do this for the Linux box (backing it up incrementally to an HFS case-sensitive sparseimage via rsync), but it's (obviously) a bit of a kludge. Question 3: Is there a UNIX equivalent to the Mac sparseimage that I should be using for this? ("tar -u" can do it (duh), but then the backup file grows without bound.) Thanks, -G. -- Glenn Eychaner (geychaner(a)lco.cl) Telescope Systems Programmer, Las Campanas Observatory

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Re: [CentOS] Errors on NFS server
by Sajesh Singh 13 Sep '13

13 Sep '13

> -----Original Message----- > From: Barbara Krasovec [mailto:barbarak@arnes.si] > Sent: Friday, September 13, 2013 8:48 AM > To: Sajesh Singh > Subject: Re: [CentOS] Errors on NFS server > > We had similar errors, but installed 3.8.10 kernel from elrepo on the > machine (also HP Proliant DL380 G7). NFS seems to work much better on > that kernel. We see no such errors. > > Cheers, > Barbara Barbara, Thank you for the info. Did you have any issues running the HP drivers on the server after installing the 3.8.10 kernel? -Sajesh-

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