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undelete logical volume

linux-lvm Andreas Unterkircher 2 participants 3 messages Jun 13, 2006

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#0 lore raw

Hi,

I made a big mistake and deleted a logical volume with some still needed data.

It was the only active lv and no other write access happened on the physical disks till yet. Also I have no backup of lvm's metadata.

Is there any way to recover the lost logical volume? (lvm2)

Andreas

#1 lore raw

Use RIP (R)ecovery (I)s (P)ossible! (v15.2) to boot up.
And use command hexdump /dev/hda1 to collect the old LVM config information. They are nearly 1200.
Use the information to create a metadata file.
Use cfgrestore to recover.
Then mount back the lost LogVol00.

Just my two cents.
"Andreas Unterkircher" <[email protected]> �b�l��
news:[email protected] �����g...

Quoted 3 lines

Hi,

I made a big mistake and deleted a logical volume with some still needed

data.

Quoted 2 lines

It was the only active lv and no other write access happened on the

physical

Quoted 13 lines

disks till yet. Also I have no backup of lvm's metadata.

Is there any way to recover the lost logical volume? (lvm2)

Andreas

_______________________________________________
linux-lvm mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

#2 lore raw

Thx for the hint. Also I found out that a metadata backup is created on a every command in /etc/lvm/archives.
The lv has been recovered, but it looks like the first xxx bytes of the lv have changed. Luks doesn't accept it
as luks partition anymore and so I can't mount the encrypted partition anymore. Data lost.... Backup is always
a good idea...

Andreas

Quoted 45 lines · Thomas

Use RIP (R)ecovery (I)s (P)ossible! (v15.2) to boot up.
And use command hexdump /dev/hda1 to collect the old LVM config information. They are nearly 1200.
Use the information to create a metadata file.
Use cfgrestore to recover.
Then mount back the lost LogVol00.

Just my two cents.
"Andreas Unterkircher" <[email protected]> �b�l��
news:[email protected] �����g...

Quoted 4 lines

Hi,

I made a big mistake and deleted a logical volume with some still needed

data.

Quoted 2 lines

It was the only active lv and no other write access happened on the

physical

Quoted 4 lines

disks till yet. Also I have no backup of lvm's metadata.

Is there any way to recover the lost logical volume? (lvm2)

Quoted 10 lines

Andreas

_______________________________________________
linux-lvm mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

_______________________________________________
linux-lvm mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/