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My raid 10 - used for / - has failed for my Ubuntu box.

I replaced the bad disk and I am trying to reassemble the raid from the initramfs menu. I have tried starting the degraded Raid and using the recovery startup option

When I run the mdadm --assemble /dev/md1 (devices) command it tell me that the first devices is busy or not accessible. However I can run mdadm --examine on the device in question

any ideas?

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Please include the output of 'mdadm --detail /dev/md1'. Also, could it be that the array was assembled successfully, but wasn't started? If that happened, 'mdadm --run /dev/md1' may get the array online in degraded mode. – Slartibartfast Sep 9 '11 at 5:44
The output is /dev/md1 does not appear to be active. – ckliborn Sep 9 '11 at 17:01
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If you haven't figured this out already, you would almost certainly be better off booting off a livecd and repairing things. Initramfs provides a very limited environment. It is much easier to repair things from more complete system.

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