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aadrien
May 10th, 2010, 11:36 AM
Well, I have a NTFS raid1 partition from before I installed Ubuntu 9.10.
It worked well.
Yesterday came an upgrade to 10.04. Why not?
All my 500Gb of work on my raid array cannot be mounted anymore.

Here is the situation


dmraid -r
/dev/sdd: jmicron, "jmicron_sauvegarde", mirror, ok, 976748544 sectors, data@ 0
/dev/sdc: jmicron, "jmicron_sauvegarde", mirror, ok, 976748544 sectors, data@ 0

ls -lh /dev/mapper
total 0
crw-rw---- 1 root root 10, 59 2010-05-10 11:29 control
brw-rw---- 1 root disk 252, 0 2010-05-10 12:05 jmicron_sauvegarde

fdisk -l /dev/mapper/jmicron_sauvegarde

Disk jmicron_sauvegarde: 500.1 GB, 500095254528 bytes
255 heads, 63 sectors/track, 60799 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk jmicron_sauvegarde doesn't contain a valid partition table

fdisk -l

Disk /dev/sda: 150.0 GB, 150039945216 bytes
255 heads, 63 sectors/track, 18241 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000a1b27

Device Boot Start End Blocks Id System
/dev/sda1 * 1 17495 140528556 83 Linux
/dev/sda2 17496 18241 5992245 5 Extended
/dev/sda5 17496 18241 5992213+ 82 Linux swap / Solaris

Disk /dev/sdb: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x2cd02cd0

Device Boot Start End Blocks Id System
/dev/sdb1 2 6374 51191122+ f W95 Ext'd (LBA)
/dev/sdb2 * 6375 19457 105089197+ 7 HPFS/NTFS
/dev/sdb5 2 6374 51191091 7 HPFS/NTFS

Disk /dev/sdc: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 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
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/sdd doesn't contain a valid partition table

RAID is /dev/sdc & /dev/sdd
and

partx -a /dev/mapper/jmicron_sauvegarde
does not do anything.

I have read a lot of stuff on the subject but nothing seems to work.

Any idea is welcome, I am stuck and even if I have a backup I have nowhere to restore it!

Thanks in advance

aadrien
May 11th, 2010, 01:20 PM
OK, I got it.:(

Know I really felt why a community will never be the same as a customer support.

Depending on your question, it can happen that nobody cares. That's life.

In case some would be later interested :

I paid a data recovery service to put my stuff on a new disk they sold me.
From now on I will never use software RAID anymore but an eSata RAID device seen by my system as a black box. No driver needed, will always work.