Discuss April 2010

discuss@lists.centos.org

265 participants
237 discussions

32-bit boot CD for 64-bit install using kickstart
by Carlos S 02 May '10

02 May '10

Hi, I am using kickstart method for CentOS installation. The install is done using mirror site URL and not CD/DVD ISOs. However, the system is initially booted from 32-bit CentOS CD. When the install process starts I get errors as: - package rpm not found - abort/continue? - package lvm2 not found - abort/continue? - package grub not found - abort/continue? - ... - ... If I change install URL to 32-bit ISOs then everything works fine. Do I need to use 64-bit boot CD for this install? -- CS.

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CentOS 5.4 off-center on SuperMicro console
by Rudi Ahlers 30 Apr '10

30 Apr '10

I have a weird situation with a new installation of CentOS 5.4 x64, on a SuperMicro X7SBI server. The server has a <a href=" http://www.supermicro.com/products/motherboard/Xeon3000/3210/X7SBi.cfm" target="_new">SuperMicro X7SBi motherboard</a>, board ATI ES1000 and Core2Quad Q9505 CPU. The kernel is When I login to the console, using a "17 CRT monitor (haven't tested others), the screen is off-center to the right. This happens as soon as the boot loaders gets to: "waiting for driver initialization" Below are asome photos to show what happens. http://blog.softdux.com//everything-todo-with-linux/centos-5-4-off-center-o… http://blog.softdux.com//everything-todo-with-linux/centos-5-4-off-center-o… http://blog.softdux.com//everything-todo-with-linux/centos-5-4-off-center-o… Other Linux distro's, including Fedora Core 11, FC 12, Ubuntu 9.10 and OpenFiler 2.3 works fine though. The only thing I can think of is the video driver, but I don't have X installed, so it can't be that. And I've reinstalled CentOS 3 times already thinking I did something wrong with the installation. It's not the monitor, since I have another CentOS 5.4 server, running on an Intel motherboard that looks normal with this setup. They're connected to the same monitor via a KVM switch. -- Kind Regards Rudi Ahlers SoftDux Website: http://www.SoftDux.com Technical Blog: http://Blog.SoftDux.com Office: 087 805 9573 Cell: 082 554 7532

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Reverse engineering USB devices
by Stephen Harris 30 Apr '10

30 Apr '10

I'm pretty sure this is the wrong list, but maybe some clever people here can redirect me... I have a "RCA RS2100 Bookshelf Audio System" http://www.woot.com/blog/viewentry.aspx?id=2744 This is radio/CD/mp3 player... PLUS it can stream audio wirelessly. You plug a USB device into your PC and you can remote control what gets played from the RS2100 remote control ("Wireless Musiclink"). BUT only with Windows Media Center. When I plugged the device in it appears to look like 3 devices; a HID, an audio device and something else I can't remember (I'm not at that machine at the moment). My feeling is that the HID is used to inject commands from the RS2100 (eg "play track <x>"), the audio device is for streaming and the third device is feedback for the remote display. The question I have... how can I reverse engineer the protocol used so that I can make this work on my CentOS machine? (I don't want to run a Windows instance just for remote audio!). Any hints, tips, pointers etc much appreciated. Thanks! -- rgds Stephen

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need help: about remove space
by adrian kok 30 Apr '10

30 Apr '10

Hi all I have big file as below and would like to know how many line eg: wc -l file but can't figure out how to know If I type wc -l file, I only get the 1023 but it includes the space When I use cat file | tr -d "\r \n". it gives me "adrian alice......" I need it as fileB and then wc -l fileB. Thank you so much file ==== adrian alice Patrick file B ====== adrian alice Patrick

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C5: correct place for routing scripts?
by Kimmo Koivisto 30 Apr '10

30 Apr '10

Hello I have several Centos 4 and Centos 5 servers. Because of the nature of the environment, there are some static arp entries made with arp command and then source routing made with "ip rule/ip route" -commands. Those commands are now placed at /etc/rc.d/rc.local which is bad: if server is rebooted, those commands will be done correctly but if administrator restarts network with "/etc/init.d/network restart", source routes will disappear. RedHat/Centos qualified admin knows only about network restart init script, so I try to avoid doing any hacks. I could edit the init script (/etc/init.d/network) but changes could disappear with updates. So, what is the correct place for different commands (arp, ip, whatever) that is executed (a) once when network started (b) once when network stopped (I don't need but nice to know) (c) once per every interface (I don't need but nice to know) Best Regards, Kimmo

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NFS automount failure
by Trevor Cooper 30 Apr '10

30 Apr '10

I'm having a problem with automount (autofs) from a server running CentOS 5.4 to clients (example is CentOS 5.4). Client pulls automount maps from NIS. THIS particular server is also used for login so it is NIS bound as well (other servers are NOT). ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ NIS Server Side... (content shortened) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ $ ypcat -k auto.master | sort | grep auto.mdkm1 /storage/mdkm1 auto.mdkm1 --timeout=600 $ ypcat -k auto.mdkm1 | sort 1 137.110.179.254:/mdkm1/1 . . . 10 137.110.179:254:/mdkm1/10 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ NFS Server Side... (content shortened) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ $ cat /etc/exports /mdkm1/1 ###.###.172.0/25(rw,sync) ###.###.179.192/26(rw,async) . . . /mdkm1/10 ###.###.172.0/25(rw,sync) ###.###.179.192/26(rw,async) $ cat /etc/fstab /dev/MDKM1/MDKM1-1 /mdkm1/1 ext3 defaults 1 2 . . . /dev/MDKM1/MDKM1-10 /mdkm1/10 ext3 defaults 1 2 # mount /dev/mapper/MDKM1-MDKM1--1 on /mdkm1/1 type ext3 (rw) . . . /dev/mapper/MDKM1-MDKM1--10 on /mdkm1/10 type ext3 (rw) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ NIS/NFS Client Side... ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ $ cat /etc/auto.master | egrep -v "^#" /misc /etc/auto.misc /net -hosts +auto.master # service autofs status automount (pid 3714) is running... $ ls /storage/mdkm1/1 kmdev lost+found $ ls /storage/mdkm1/10 <--- wait here forever [CTRL-C] to abort ls: /storage/mdkm1/10: Interrupted system call *NOTE: Above command never completes and will hang the shell from multiple clients. # mkdir -p /mnt/mdkm1/10 # mount -t nfs ###.###.179.254:/mdkm1/10 /mnt/mdkm1/10 $ ls /mnt/mdkm1/10 kmdev lost+found # umount /mnt/mdkm1/10 NOTE: During mount/umount the NFS server logs show the requests for the automount of mdkm1/1 AND the manual mount of mdkm1/10. The server log never shows an attempt to mount mdkm1/10 in the 'stalled' automount attempt. For example... Apr 27 13:14:50 rilkm01 mountd[8002]: authenticated mount request from ###.###.172.70:730 for /mdkm1/1 (/mdkm1/1) Apr 27 13:15:24 rilkm01 mountd[8002]: authenticated unmount request from ###.###.172.70:771 for /mdkm1/1 (/mdkm1/1) Apr 27 13:16:17 rilkm01 mountd[8002]: authenticated mount request from ###.###.172.70:785 for /mdkm1/10 (/mdkm1/10) Apr 27 13:16:31 rilkm01 mountd[8002]: authenticated unmount request from ###.###.172.70:794 for /mdkm1/10 (/mdkm1/10) I've restarted the Server NFS services, Client autofs services AND the systems as a whole multiple times to no avail. Any ideas? Thanks, Trevor Cooper -- Trevor Cooper, M.Sc. Data Systems Programmer / System Administrator University of California, San Diego Multimodal Imaging Laboratory 8950 Villa La Jolla Dr., Suite C101 La Jolla, CA 92037 Phone: (858) 534-8259 Fax: (858) 534-1078

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Xenserver installation problem
by Georghy 29 Apr '10

29 Apr '10

Hi all, I'm trying to install xenserver on a 64bit processor server but I'm experiencing an error, take a look : http://img641.imageshack.us/i/capturebg.png/ what should I do ? -- Cordialement, / Greetings, Georghy FUSCO

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how to reroute all ADSL traffic via another server on the internet?
by Rudi Ahlers 29 Apr '10

29 Apr '10

Hi all, Does anyone know, if it's possible to reroute all (i.e. HTTP / FTP / DNS / SMTP / POP3 / IMAP / etc) from an ADSL connected machine via another server, which is currently hosted with IS and has full internet access? i.e. Can I setup another machine, on a different public IP than the dynamic ADSL IP as default gw? OR do I need todo something on that machine to work as a router for such a setup? Both servers in this case is CentOS linux, but I'm sure that won't make a big difference? -- Kind Regards Rudi Ahlers SoftDux Website: http://www.SoftDux.com Technical Blog: http://Blog.SoftDux.com Office: 087 805 9573 Cell: 082 554 7532

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vmware-server-console not installed
by Agnello George 28 Apr '10

28 Apr '10

I had installed the vmware server ( VMware-server-2.0.1-156745.i386 ) on my CentOS 5 box how ever i am not able to to find the command vmware-server-console . Do i need to install that RPM separately . Thanks -- Regards Agnello D'souza

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X11 problem with remote login via SSH
by fred smith 28 Apr '10

28 Apr '10

HI all! Strange problem that began occurring in last few weeks. Centos 5.4, up to date. I sometimes log in remotely via ssh using "ssh -X" and read mail via mutt. Now and then I want to use balsa instead. This has always worked (for years) though it's kinda slow... but in the last few weeks it has begun failing and spewing errors like this, repeatedly, apparently forever until I enter ^C: $ balsa Bonobo accessibility support initialized GTK Accessibility Module initialized X11 connection rejected because of wrong authentication. ** ERROR **: Accessibility app error: exception during registry activation from id: IDL:Bonobo/GeneralError:1.0 aborting... It happens from two different linux boxen (one running Fedora 12, the other running Centos 5.4) so I gather it's something weird on the host rather than the client. BTW, it works fine when I'm logged in to to the host's X11 GUI directly from the machine. I've got no clue, can any of you shed any light on this please? Thanks in advance! -- ------------------------------------------------------------------------------- .---- Fred Smith / ( /__ ,__. __ __ / __ : / / / / /__) / / /__) .+' Home: fredex(a)fcshome.stoneham.ma.us / / (__ (___ (__(_ (___ / :__ 781-438-5471 -------------------------------- Jude 1:24,25 ---------------------------------

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Discuss April 2010