Re: unable to recover RAID 5 due to bad block

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On Thu, Nov 10, 2011 at 11:04 AM, Chris Purves <chris@xxxxxxxxxxxx> wrote:
> I can bring the array back up in degraded mode by running mdadm --assemble --force /dev/md1; however, I have been unable to build the fifth disk.  I would appreciate any help.

The best way to proceed would be with the array down, you can ddrescue
the semi-good disk to a new good disk, then start the array and
recover by adding a new disk to the array.
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