Discuss June 2007

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280 participants
339 discussions

Re: [CentOS] Migration help please - moving OS to a different LVM partition
by Robert Moskowitz 20 Jun '07

20 Jun '07

Robert Story wrote: > On Tue, 19 Jun 2007 14:28:44 -0400 Robert wrote: > RM> I have set up a migration between two drives. fIrst I got Centos 5 > RM> working how I wanted on this drive, then set about copying it to another > RM> drive. > ... > RM> Still I cannot get the new drive to boot. > RM> > RM> If I boot with the latest kernel (which I copied to the new drive), I > RM> get a message finding the new LVM partition, could not find the old LVM > RM> partition then: > RM> ... > RM> Mount: could no find filesystem /dev/root > RM> ... > RM> fsck.ext3 Unable to resolve 'label=/boot' > > You need to rebuild you initrd image.. See the mkinitrd man page.. I kind of thought it would be something like that, but given that I could not boot up, I was not sure what to do. Last night I punted and did a clean, full, install on the new drive. Did the yum update, copied my data directory and I a now up with basic functions. I have also documented some of my starting setups, and am now ready to reboot and see if I got everything in for madwifi and sun's java jdk.... Lessons learned and all that stuff. One major thing is that an OS migration is NOT so cut and dry...

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Problem with yum after upgrading from 4.5 to 5.0
by Thomas Dukes 20 Jun '07

20 Jun '07

Hello, Have pretty much figured out I can't use plugins since upgrading. If I use yum update --noplugins to get the updates for 5.0, I get: Warning: rpmts_HdrFromFdno: Header V# DSA signature: NOKEY, key ID e8562897 Public key for samba-common-3.0.23c-2.el5.2.0.2.i386.rpm is not installed I looked back through the archives and think I may need a rpmforge-release key but have not been able to find it. Is this right? Anyone have a link for it? TIA

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web based vacation frontend
by Erick Perez 20 Jun '07

20 Jun '07

Hi, One customer has Centos 5 installed. He wants to have a web based frontend to the vacation program because he is in charge to enable the vacation msg for all the users in leave. I tried webmin but the webmin vacation module points to a nonexistant link. And the usermin module is very old and requires the user to do it by themselves. Suggestions? -- ------------------------------------------------------------ Erick Perez Panama Sistemas Integradores de Telefonia IP y Soluciones Para Centros de Datos Panama, Republica de Panama Cel Panama. +(507) 6694-4780 ------------------------------------------------------------

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antivirus
by Wayne 20 Jun '07

20 Jun '07

Hey Guys, We have a central server which runs centos, most of the client machines run on windows. Does anybody know of a solution whereby we can manage antivirus for all the clients from the centos server? I know there are management consoles for managing antivirus on windows but we dont want to run a windows server.. Anybody have any ideas? Or are we just screwed and need to have a windows server for this? Thanks, Wayne

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Disk errors on CentOS 5 - libata bug?
by Miguel Medalha 20 Jun '07

20 Jun '07

I just installed CentOS 5 on a computer. On boot, I get the a error message, related to 2 SATA disks. These errors did NOT appear on version 4.4 with the EXACT same hardware. Despite the error messages, the disks seem to be working with no problems. Could someone please tell me what these error are and if there is some known way to prevent them? I searched the Net for these errors and they seem to appear with a wide range of disks, controlers and chips set brands, even with different Linux distributions. The issue seems to be related to the last few kernel versions and is perhaps a bug or ill implemented "feature" of libata. My configuration: - 2 Hitachi SATA 120 GB Harddisks (first generation, no NCQ) - Intel P4 3GHz - Tyan Tomcat i875p motherboard, Intel ICH5 disk controler - 1 GB ECC RAM - 2 Intel Gb NICs - 1 Intel 10/100 NIC Error message follows: --------------------------------------------------------------------- ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 ata1.00: tag 0 cmd 0xb0 Emask 0x1 stat 0x51 err 0x4 (device error) ata1: EH complete ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 ata1.00: tag 0 cmd 0xb0 Emask 0x1 stat 0x51 err 0x4 (device error) ata1: EH complete ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 ata1.00: tag 0 cmd 0xb0 Emask 0x1 stat 0x51 err 0x4 (device error) ata1: EH complete ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 ata1.00: tag 0 cmd 0xb0 Emask 0x1 stat 0x51 err 0x4 (device error) ata1: EH complete ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 ata1.00: tag 0 cmd 0xb0 Emask 0x1 stat 0x51 err 0x4 (device error) ata1: EH complete ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 ata1.00: tag 0 cmd 0xb0 Emask 0x1 stat 0x51 err 0x4 (device error) ata1: EH complete SCSI device sda: 241254720 512-byte hdwr sectors (123522 MB) sda: Write Protect is off sda: Mode Sense: 00 3a 00 00 SCSI device sda: drive cache: write back SCSI device sda: 241254720 512-byte hdwr sectors (123522 MB) sda: Write Protect is off sda: Mode Sense: 00 3a 00 00 SCSI device sda: drive cache: write back ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 ata2.00: tag 0 cmd 0xb0 Emask 0x1 stat 0x51 err 0x4 (device error) ata2: EH complete ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 ata2.00: tag 0 cmd 0xb0 Emask 0x1 stat 0x51 err 0x4 (device error) ata2: EH complete ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 ata2.00: tag 0 cmd 0xb0 Emask 0x1 stat 0x51 err 0x4 (device error) ata2: EH complete ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 ata2.00: tag 0 cmd 0xb0 Emask 0x1 stat 0x51 err 0x4 (device error) ata2: EH complete ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 ata2.00: tag 0 cmd 0xb0 Emask 0x1 stat 0x51 err 0x4 (device error) ata2: EH complete ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 ata2.00: tag 0 cmd 0xb0 Emask 0x1 stat 0x51 err 0x4 (device error) ata2: EH complete SCSI device sdb: 241254720 512-byte hdwr sectors (123522 MB) sdb: Write Protect is off sdb: Mode Sense: 00 3a 00 00 SCSI device sdb: drive cache: write back SCSI device sdb: 241254720 512-byte hdwr sectors (123522 MB) sdb: Write Protect is off sdb: Mode Sense: 00 3a 00 00 SCSI device sdb: drive cache: write back --------------------------------------------------------------------- Thank you Miguel

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Correct xen domains path
by Jordi Espasa Clofent 20 Jun '07

20 Jun '07

Hi all, Two questions 1. According to http://wiki.centos.org/HowTos/Xen/InstallingCentOSDomU?highlight=%28xen%29 it would be /srv/xen or even /var/lib/xen/images. ¿What is the correct absolute path to put into the xen domains files? 2. Moreover, if you want the domU(s) boot together dom0, you should put the domains files (images) into /etc/xen/auto. ¿A simple symlink will be enough in this case? -- Thanks, Jordi Espasa Clofent

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Migration help please - moving OS to a different LVM partition
by Robert Moskowitz 19 Jun '07

19 Jun '07

I have set up a migration between two drives. fIrst I got Centos 5 working how I wanted on this drive, then set about copying it to another drive. The Centos files on both drives are in sub-partitions in an LVM partition on their respective drives. I first did a minimum install on the new drive and saved all those files to a separate directory. The LVM partititons and sub-partitions all have unique names. Well it has been a bit of a struggle to say it nicely. Seems the LVM names are buried all over the place. Of course I had to change /boot/grub/grub.conf, /boot/grub/menu.lst, and /etc/fstab But more than that was the contents of /etc/lvm So for those I just restored what was created in the minimum install. Still I cannot get the new drive to boot. If I boot with the latest kernel (which I copied to the new drive), I get a message finding the new LVM partition, could not find the old LVM partition then: Mount: could no find filesystem /dev/root and a kernel panic. If I get the boot menu and select the kernel installed with the minimum install, it gets a little further. It still tries to find the old LVM partition, cannot find /lib/modules.dep in the /lib/modules directory for this kernel (forget the whole filename), and then: fsck.ext3 Unable to resolve 'label=/boot' and then get dropped into a maintenance mode with the file system mounted in readonly mode. So what Have I Missed? Or is this a lost cause and I should just do a full install on the new drive and proceed from there????

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Wireless networking with CentOS 4.4 on Dell laptop
by Andrew Allen 19 Jun '07

19 Jun '07

I have a (new) Dell laptop with CentOS 4.4 installed and am trying to get wireless networking. The list of drivers doesn't include a specific one for this card - Dell wireless 1390 Mini PCI network card 802.11b/g (according to the manufacturer's blurb). Any ideas as to where I can find the appropriate driver please? Andy

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Gnome Taskbar(s)
by fredex 19 Jun '07

19 Jun '07

Question: All the newer Gnome distributions seem to configure themselves with two small "taskbars" (panels, I guess) one at the top and one at the bottom. I prefer the older scheme with one larger one (usually) at the bottom. When I install Centos5 in the near future I'm going to want to be able to restore the old-style panels. Anybody know what I need to change to make it work in the old way? Thanks! -- ---- Fred Smith -- fredex(a)fcshome.stoneham.ma.us ----------------------------- I can do all things through Christ who strengthens me. ------------------------------ Philippians 4:13 -------------------------------

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CUPS driver for Panasonic DP-2330 printer?
by James B. Byrne 19 Jun '07

19 Jun '07

Can anyone point me to a possible source of a linux cups driver specifically for this machine or to a work-alike driver for a similar piece of equipment. Failing this, does anyone have any suggestions as to any open source software guys who might be willing to develop one for a fee? Regards, P.S. I have already googled, yahooed and sniveled on other venues in search of an answer. -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

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Discuss June 2007