[ILUG] LVM import problem.

Conor Wynne weeboy at conorwynne.com
Wed Apr 6 21:14:00 IST 2005


Hi all,

Well I am trying to import a filesystem on the old disk so that I can
fsck it & consequently recover the data.

Here is what ubuntu sees, the disk (/dev/hda) is from a fedora
core3 install:

conor at charzard:~ $ sudo fdisk -l

Disk /dev/sda: 9105 MB, 9105023488 bytes
255 heads, 63 sectors/track, 1106 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1        1056     8482288+  83  Linux
/dev/sda2            1057        1106      401625    f  W95 Ext'd (LBA)
/dev/sda5            1057        1106      401593+  82  Linux swap

Disk /dev/hda: 81.9 GB, 81964302336 bytes
255 heads, 63 sectors/track, 9964 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/hda1   *           1          13      104391   83  Linux
/dev/hda2              14          78      522112+  82  Linux swap
/dev/hda3              79        9964    79409295   83  Linux

conor at charzard:~ $ sudo vgchange -an VolGroup00
  0 logical volume(s) in volume group "VolGroup00" now active

conor at charzard:~ $ sudo vgexport VolGroup00
  Volume group "VolGroup00" successfully exported

conor at charzard:~ $ sudo pvscan
  PV /dev/hda3   VG VolGroup00   lvm2 [75.72 GB / 32.00 MB free]
  Total: 1 [75.72 GB] / in use: 1 [75.72 GB] / in no VG: 0 [0   ]

conor at charzard:~ $ sudo vgimport VolGroup00
  Volume group "VolGroup00" successfully imported

All grand so far...

conor at charzard:~ $ sudo vgimport VolGroup00 /dev/hda3
  Volume group "VolGroup00" is not exported
  Unable to find exported volume group "hda3"

Hmm,

Do I need to be using LVM on my ubuntu disk, surely not?
Should /dev/hda3 not be seen as "type 8e" rather than "type 83"?
If so, should I do an fdisk on /dev/hda3 and change it?
Would that cause havoc? I think "possibly" not, as I would not be changing
the partition size.

As I do not yet have a backup (cough, splutter) I thought it prudent to
ask ye first :--)

-- 
Conor Wynne,
Dublin,
Irlande.



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