Re: MD device id change

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On Thursday April 3, kisselev@mail.desy.de wrote:
> 
>   Here is the question: is there an easy way to change RAID device ID?
> If not, is the following sequence correct in my case (1-disk RAID linear):
> 
>   - stop device;
>   - 'dd' 4k RAID superblock from /dev/sda2 at offset 292021440;
>   - change 4-byte field at offset 11 (md_minor) to the desired number
>     (say '5' for md5);
>   - copy superblock back;
>   - reboot;

Sort of, but it is much easier to get mdadm to do this.
Get mdadm 1.2.0 and check out
   --assemble --update=super-minor

in the documentation.

NeilBrown
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