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Old 09-15-2012, 08:49 AM   #1
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Registered: Sep 2012
Posts: 1

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Trouble mounting RAID partition


Recently my server had one of its hard drives fail and they are mounted with a RAID 1. My server hosts have booted the server in to a recovery system from where I should be able to mount the drives and copy data to our backup server.

I was able to mount one part, this being md2 which is / but am having problems mounting /home (md3). cat /proc/mdstat show all md0-3 as active but when using 'mount /dev/md3 /mnt/main/home' I get the following error(below the mdstat).

mdstat shows the following:

Personalities : [raid1]
md3 : active raid1 sda4[0]
      1822442815 blocks super 1.2 [2/1] [U_]

md2 : active raid1 sda3[0]
      1073740664 blocks super 1.2 [2/1] [U_]

md1 : active raid1 sda2[0]
      524276 blocks super 1.2 [2/1] [U_]

md0 : active raid1 sda1[0]
      33553336 blocks super 1.2 [2/1] [U_]

mount: wrong fs type, bad option, bad superblock on /dev/md3,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so

Does anyone have a solution to fix this problem?

Thanks Rob
Old 09-19-2012, 06:01 PM   #2
Registered: Nov 2003
Location: Los Angeles
Distribution: debian
Posts: 548

Rep: Reputation: 72
Did you specify the file system type? For example, mount /dev/md3 /mnt/somedir -t ext3

What does fsck tell you about the partition?


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