mdadm RAID1 Recovery

KIA · 26 Mar 2011 at 15:33

Hi,

I had to break up a RAID1 array.

When it came to recreating it using mdadm, I accidentally used --create instead of --assemble.

The file system is ext3. When I try to mount the array:

root@debian:~# mount -t ext3 /dev/md2 /root/temp/
mount: wrong fs type, bad option, bad superblock on /dev/md2,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so

Am I screwed? Is my data gone?

KIA · 26 Mar 2011 at 16:15

tntcoder said:
Did you get it to assemble correctly?

Yes, it will still assemble although the array information refers to the current distro rather than the previous.

I will check out testdisk.

Thanks!

KIA · 26 Mar 2011 at 18:05

I'm not sure which is the best testdisk option to use. I have gone for the Analyse option. It's going to take a while as the drive is 1.5TB in size.

KIA · 26 Mar 2011 at 21:42

This app saved my life: https://www.runtime.org/nas-recovery.htm

I'll read the man entry before I use mdadm again.