Re: Deleting mdadm RAID arrays

[Moshe Yudkowsky <moshe@pobox.com>]

Michael Tokarev wrote:
> Janek Kozicki wrote:
>> Marcin Krol said:     (by the date of Tue, 5 Feb 2008 11:42:19 +0100)
>>
>>> 2. How can I delete that damn array so it doesn't hang my server up in a loop?
>> dd if=/dev/zero of=/dev/sdb1 bs=1M count=10
> 
> This works provided the superblocks are at the beginning of the
> component devices.  Which is not the case by default (0.90
> superblocks, at the end of components), or with 1.0 superblocks.
> 
>   mdadm --zero-superblock /dev/sdb1

Would that work if even if he doesn't update his mdadm.conf inside the 
/boot image? Or would mdadm attempt to build the array according to the 
instructions in mdadm.conf? I expect that it might depend on whether the 
instructions are given in terms of UUID or in terms of devices.

-- 
Moshe Yudkowsky * moshe@pobox.com * www.pobox.com/~moshe
  "I think it a greater honour to have my head standing on the ports
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   King's bedchamber." -- Montrose, 20 May 1650