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Background: I have an Iomega NAS that stopped working and I'm trying to recovery the data on it. Code: ubuntu:~$ sudo fdisk -l Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes 255 ...
  1. 07-12-2011 #1
    crazyeyes
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    How to mount Linux raid autodetect

    Background:

    I have an Iomega NAS that stopped working and I'm trying to recovery the data on it.

    Code:
    ubuntu:~$ sudo fdisk -l

Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 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: 0x0001cf00

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               4         515     4112640   fd  Linux raid autodetect
/dev/sdb2             516      121601   972623295   fd  Linux raid autodetect
/dev/sdb3               1           3       24097   da  Non-FS data
    I'm trying to get to /dev/sdb2, that's where all my files should be. I get this message when I tried to mount it:

    Code:
    ubuntu:~$ sudo mount /dev/sdb2 /home/ubuntu/asdf
mount: you must specify the filesystem type
    What do I need to do to get to it?

    Thanks!
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  2. 07-12-2011 #2
    HROAdmin26
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    A raid set implies 2+ disks - you seem to have 1. If this was not a mirror (RAID1), you will not get any data from it. The error thrown indicates the kernel was not able to "auto-detect" the filesystem based on the data from the disk. This would imply the raid set was not a mirror or that the filesystem is corrupt. You can Google for info on tools like foremost and scalpel if you *know* it was a mirror (and the filesystem is corrupt.)

    * It's also possible the Ubuntu install doesn't have support for the filesystem that the NAS used, but that would be unlikely.
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  3. 07-12-2011 #3
    crazyeyes
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    There was only one disk in the nas.

    This guy's issue is pretty much identical to mine.

    //ubuntuforums.org/showthread.php?t=1665035

    Can you help with what I need to do based on that post? Thanks!
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  4. 07-12-2011 #4
    HROAdmin26
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    You can run the blkid command to *see* if it will show the filesystem - in an attempt to confirm it's XFS.

    You can Google or read the man pages for xfs_check and xfs_repair.

    Code:
    man xfs_repair
    Code:
    xfs_check /dev/sdb2
    Depending on the issues found, you may lose all/some of the data.
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