LVM restore / recovery Post: 302249229

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Special Forums Hardware Filesystems, Disks and Memory LVM restore / recovery Post 302249229 by Zburatorul on Tuesday 21st of October 2008 12:50:14 AM

10-21-2008

Registered User

I've made some progress. Here's a summary of my steps so far:

# Searched for lvm config

Code:

sudo dd if=/dev/sdb bs=512 count=255 skip=1 of=/temp.txt

# Filtered the output, saved the file to /etc/lvm/backup/data-raid
# Extracted the UID of pv0 (/dev/md0) and ran

Code:

pvcreate -ff -v -u JgOakP-gVVs-SfhX-lEXi-x4fQ-3gXz-3d17FN /dev/md0

# Restored lvm w/

Code:

vgcfgrestore -f /etc/lvm/backup/data-raid data-raid

# Imported the volume group with

Code:

vgimport data-raid

# Brought it up

Code:

vgchange -ay data-raid

Code:

# ls -l /dev/mapper
total 0
crw-rw---- 1 root root  10, 60 2008-10-11 20:16 control
brw-rw---- 1 root disk 253,  7 2008-10-19 10:12 data--raid-user
brw-rw---- 1 root disk 253,  4 2008-10-19 10:12 data--raid-media
brw-rw---- 1 root disk 253,  3 2008-10-19 10:12 data--raid-media-real
brw-rw---- 1 root disk 253,  6 2008-10-19 10:12 data--raid-snap--media
brw-rw---- 1 root disk 253,  5 2008-10-19 10:12 data--raid-snap--media-cow

# Tried mounting w/ following fstab conf

Code:

/dev/mapper/data--raid-media    /media/Pictures    reiserfs    defaults,noatime    0    0

it failed with

Code:

[630884.179103] ReiserFS: dm-3: warning: sh-2021: reiserfs_fill_super: can not find reiserfs on dm-3

There are supposed to be 2 volumes with data, data--raid-media a ReiserFS partition, and data--raid-user a LUKS encrypted one and a snapshot volume of the media partition.

Any ideas what could have gone wrong?

Zburatorul

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