| View previous topic :: View next topic |
| Author |
Message |
vermot
n00b
Joined: 26 Jun 2007
Posts: 18
|
 Posted: Thu Aug 27, 2009 3:33 pm Post subject: [Solved] Raid dissapeared |
 |
|
Hi,
This might be the wrong forum, but I thought I'd give it a go.
I've had a gentoo system installed for a while and decided to migrate to xubuntu for whatever reasons. I got the os on sda and have 3 disks, sdb, sdc, sdd which were a raid with lvm (not working 100% in gentoo, but all data was accessable).
I've run into two things, which non of them makes sense to me.
When installing xubuntu i only touched sda. But after having installed mdadm on the new system, my raid is nowhere. No superblock on any of the disks.
| Quote: | cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
unused devices: <none>
fdisk -l
Disk /dev/sdb: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0xf280f280
Disk /dev/sdb doesn't contain a valid partition table
Disk /dev/sdc: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00000000
Disk /dev/sdc doesn't contain a valid partition table
Disk /dev/sdd: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00000000
Disk /dev/sdd doesn't contain a valid partition table |
First question is, anyone has the brightest idea what's up with this?
Second question, when i booted gentoo live cd I can only find sda. xubuntu has no problem finding sdb/sdc/sdd though. Ideas?
Last edited by vermot on Mon Aug 31, 2009 9:59 am; edited 1 time in total |
|
| Back to top |
|
 |
Earthwings
Bodhisattva
Joined: 14 Apr 2003
Posts: 7753
Location: Germany
|
| Posted: Thu Aug 27, 2009 4:23 pm Post subject: |
|
|
I guess you used an Intel type partition table with one primary partition of type fd (linux raid auto-detect) on all three disks when settings them up, right? I'd give testdisk a go in that case to see whether the partition table got lost for some reason.
_________________
KDE |
|
| Back to top |
|
|
vermot
n00b
Joined: 26 Jun 2007
Posts: 18
|
| Posted: Mon Aug 31, 2009 9:49 am Post subject: |
|
|
My problem is solved.
I followed post #6 in http://ubuntuforums.org/showthread.php?t=1101748 and on the 6th attempt to re-create my raid it worked.
I had seriously given up all hope to get the data back. Today is a too good day to stay sober.
:D |
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
|
Other Things Gentoo
