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List:       opensuse
Subject:    SPAM: Re: [opensuse] Changing the root partition to a different LVM
From:       Kenneth Schneider <suse-list3 () bout-tyme ! net>
Date:       2006-10-15 15:52:55
Message-ID: 1160927575.1330.2.camel () pc5 ! bout-tyme ! net
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On Sun, 2006-10-15 at 22:24 +1300, David Harrison wrote:
> Hello,
> I am running OpenSUSE 10 with an LVM root partition named /dev/sys/ 
> system.
> I want to change my root partition from the /dev/sys/system volume  
> to /dev/sys/primary.
> 
> The /dev/sys/primary partition is all setup and the required files  
> exist on it.
> I have edited grub so the entry looks like the following:
> 
> title SUSE LINUX 10.0
>      root (hd0,0)
>      kernel /vmlinuz root=/dev/sys/primary selinux=0 splash=silent  
> showopts
>      initrd /initrd
> 
> On rebooting I receive a kernel panic saying "could not find record  
> for sys/primary in database".
> This is strange because the message just beforehand states that the  
> volume group sys has been activated and the correct number of volumes  
> (6) found.
> 
> I am guessing it is an issue with the initrd file.
> I have rebuilt the initrd file using the command:
> mkinitrd -k vmlinuz-2.6.13-15.12-default -i initrd-2.6.13-15.12- 
> default -d /dev/sys/primary
> 
> The rebuild had no effect, the system will happily boot into /dev/sys/ 
> system if asked to but will not recognize /dev/sys/primary.
> 
> I'm sure that I'm missing out a step or mkinitrd switch, can anyone  
> help?
> 
This is just a long shot as I don't use LVM. Try using:

chroot /dev/sys/primary

before issuing the mkinitrd command. There may be other underlying files
that have to be modified as well.

-- 
Ken Schneider
UNIX  since 1989, linux since 1994, SuSE  since 1998

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