[K12OSN] Server Clone

Paul Pianta pantz at lqt.ca
Tue Jun 1 18:37:33 UTC 2004

Les Mikesell wrote:

>On Tue, 2004-06-01 at 12:16, Jim Kronebusch wrote:
>>>Your problem is that you are using RAID on your master server 
>>>and trying to copy to plain disk partitions.  
>>I am using the PERC Raid Controller with Hardware RAID not Software
>>RAID.  The drive I want cloned is / made from a hardware mirrored raid
>>of 9GB SCSI's.  Both machines are already setup with the RAID in the
>>controller bios.  When I boot to load linux all I see is a single 9GB
>>drive on both machines known as /dev/sda and partitions into sda1 for
>>/boot sda2 for / and sda3 for swap.  Since this is at the hardware level
>>on both machines are your suggestions still relavant?  I don't really
>>even care about my /home directory on sdb for now, but those are also
>>hardware RAID5 seen as a single 205GB drive on one machine partitioned
>>into sdb1 /home, and a single 54GB drive on the other machine with the
>>same partitions scheme.  Everything is ext3.
>OK - everything will still work if you skip the setup of the
>software raid with 'mdadm'.  Probably all that has gone wrong
>with the things you have done so far is that /etc/fstab has
>the LABEL= notation and your cloned partitions don't have labels,
>and you don't have a boot loader installed.  If that is the
>case (or you can get to this point with the knoppix/tar method)
>boot the k12 install disk with 'linux rescue'.  It won't find
>your system if fstab is wrong, so make a directory in /tmp,
>mount /dev/sda2 there and fix it to use the partition names.
>You may need to comment out the /home entry with a leading '#'
>if you don't have a partition for it yet. Be careful to 'exit'
>to log out and reboot so the partition is unmounted cleanly or
>cd out of it and umount it yourself before rebooting.
>Once the real partitions match the fstab entries, booting
>with 'linux rescue' should mount everything under /mnt/sysinstall
>for you so you can chroot there and install the boot loader.
>  Les Mikesell
>   les at futuresource.com
If you want to re-setup the labels like they are on the original machine 
- the tool to use is 'e2label'.

Usage: e2label device [newlabel]
eg. e2label /dev/sda1 /boot

Sorry Mondo wasn't much help :/


Before you criticize someone, walk a mile in their shoes ...
That way when you do criticize them, you're a mile away and you have their shoes!

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