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I have Suse Linux 12.1 and i am trying to mount a single RAID 1 disk, to explore the files in it. However when mounting it:

 # mount /dev/sdc1 /mnt/test
  mount: unknown filesystem type 'linux_raid_member' 

I started reading around and many advised to just force the filessystem type

  # mount -t ext4 /dev/sdc1 /mnt/test
  mount: /dev/sdc1 already mounted or /mnt/test busy

when trying

 umount /dev/sdc1                 
 umount: /dev/sdc1: not mounted

Could someone provide some advise?

I am running my machines insed an ESXI server and it is a virtual disk. However this should not play, as this disks are not used by any other machines

thaknks!

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can you please post the output of fdisk -l ? –  Feiticeir0 Apr 26 '12 at 10:52
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1 Answer

You should not mount it directly using mount. You need first to run mdadm to assemble the raid array. A command like this should do it:

$ mdadm --assemble --run /dev/md0 /dev/sdc1

If it refuses to run the array because it will be degraded, then you can use --force option. This is assuming you don't have /dev/md0 device. Otherwise, you need to change this name.

When this command is executed successfully, you can mount the created device normally using:

$ mount /dev/md0 /mnt/test
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Seems good! I'll check it out asap! –  user1092608 Apr 26 '12 at 15:19
    
Your answer is very useful! Thank you! –  user190255 Sep 17 '13 at 7:23
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protected by Tom O'Connor Sep 17 '13 at 7:43

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