[linux-lvm] Converting the root filesystem to ReiserFS on LVM...

[linux-lvm] Converting the root filesystem to ReiserFS on LVM...

[Madison Kelly]

Hi all,

   I am officially stumped... I have tried two rescue discs (SysRescCD 
and PLD Rescue) as well and my Fedora Core 1 install disk using 'linux 
rescue' in an attempt to backup the FC1 root partition so that I can 
reformat it as ReiserFS and then restore it.

   When I use the FC1 cd I can't unmount '/mnt/sysimage' which is seen 
as the LVM device '/dev/VG00/LV00', it keeps saying the device or 
resource is busy (despite being out of the directory and running off the 
CD). When I try to boot off either rescue CD 'root' isn't mounted but 
then I can't find the darn LVM partitions (and yes I made sure that the 
rescue CDs supported LVM and ReiserFS).

   Under Fedora the devices I need to mount are on:

/dev/VG00/LV00 = '/' (currently ext3)
/dev/VG00/LV01 = '/backup' (reiserfs)
/dev/VG00/LV02 = '/snapshot' (reiserfs)

   Under the two rescue CDs though there is no '/dev/VG00...'. Where 
would I find those partitions? I tried looking under '/dev/' but the 
only thing relevant I could find was '/dev/ide/host0/bus0/target0/lun0/' 
and there was no sign of the LVM partitions (nor under variants like 
'bus1', etc.).

   Any help would be greatly appreciated!

Madison

Re: [linux-lvm] Converting the root filesystem to ReiserFS on LVM...

[David Johnston]

On Mon, 2004-04-05 at 10:42, Madison Kelly wrote:
> Hi all,
> 
> I am officially stumped... 
> When I use the FC1 cd I can't unmount '/mnt/sysimage' which is seen 
> as the LVM device '/dev/VG00/LV00', it keeps saying the device or 
> resource is busy
> Under Fedora the devices I need to mount are on:
> /dev/VG00/LV00 = '/' (currently ext3)
> /dev/VG00/LV01 = '/backup' (reiserfs)
> /dev/VG00/LV02 = '/snapshot' (reiserfs)

Madison,
do you by any chance have /mnt/sysimage/backup or /mnt/sysimage/snapshot
mounted when you get the "resource busy" error?
-- 
David Johnston <david@littlebald.com>
Little Bald Consulting, LLC

Re: [linux-lvm] Converting the root filesystem to ReiserFS on LVM...

[Madison Kelly]

David Johnston wrote:
> On Mon, 2004-04-05 at 10:42, Madison Kelly wrote:
> 
>>Hi all,
>>
>>I am officially stumped... 
>>When I use the FC1 cd I can't unmount '/mnt/sysimage' which is seen 
>>as the LVM device '/dev/VG00/LV00', it keeps saying the device or 
>>resource is busy
>>Under Fedora the devices I need to mount are on:
>>/dev/VG00/LV00 = '/' (currently ext3)
>>/dev/VG00/LV01 = '/backup' (reiserfs)
>>/dev/VG00/LV02 = '/snapshot' (reiserfs)
> 
> 
> Madison,
> do you by any chance have /mnt/sysimage/backup or /mnt/sysimage/snapshot
> mounted when you get the "resource busy" error?

Nope, I made sure to dismount anything mounted under /mnt/sysimage (inc. 
  boot/). I have since been able to copy the data by using the SysRescCD 
and then using EVMS to simply look at the partitions and then saving out 
and mounting /dev/evms/lvm/<vg>/<lv> but after restoring and rebooting 
it would kernel panic still thinking that '/' was ext3 despite editing 
'/etc/blkid.tab' and '/etc/fstab'.

I am trying now to figure out how to properly use 'chroot /mnt/sysimage' 
followed by 'lvcreate_initrd' to write a new boot loaded but despit 
double checking that the file name was right Grub still fails to find 
the file...

Quite an ordeal but I am making progress, slowly.

Thanks for your reply! Any other tips by chance?

Madison

PS - For the archives, this is a Fedora Core 1 install.

Re: [linux-lvm] Converting the root filesystem to ReiserFS on LVM...

[Michael Ossmann]

On Mon, Apr 05, 2004 at 10:42:42AM -0400, Madison Kelly wrote:
> 
> When I try to boot off either rescue CD 'root' isn't mounted but 
> then I can't find the darn LVM partitions (and yes I made sure that the 
> rescue CDs supported LVM and ReiserFS).

Did you try running vgscan?

mossmann

Re: [linux-lvm] Converting the root filesystem to ReiserFS on LVM...

[Michael Ossmann]

On Tue, Apr 06, 2004 at 10:15:30AM -0400, Madison Kelly wrote:
> 
> I am trying now to figure out how to properly use 'chroot /mnt/sysimage' 
> followed by 'lvcreate_initrd' to write a new boot loaded but despit 
> double checking that the file name was right Grub still fails to find 
> the file...

Can you post your grub.conf and an ls of your boot
filesystem?

mossmann