[rhn-users] mount: /dev/md0: can't read superblock

[Doctor Khumalo]

Using fdisk, I create new disk partitions using the “Linux raid auto” type.

I then create and define RAID device using mdadm. (mdadm -C /dev/md0 -l 5 -n 
10 /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf /dev/sdg /dev/sdh /dev/sdi 
/dev/sdj /dev/sdk)

Then I format the RAID device as an ext3 file system. In the example below 
we use 4Kb block size and a chunk-size of 64Kb:

mke2fs –j –b 4096 –R stride=16 /dev/md0

I reboot and found that I get the message:

mount: /dev/md0: can't read superblock

What am I missing?

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