[CentOS] Migration help please - moving OS to a different LVM
rgm at htt-consult.com
Tue Jun 19 18:28:44 UTC 2007
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
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
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
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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