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[gentoo-user] Re: Raid5 not assembled after boot

Francesco Talamona

2008-04-19

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On Saturday 19 April 2008, Roy Wright wrote:
> Looking thru dmesg and /var/log/messages, it looks like there are no
> attempts to start the array until I manually try.
>
> Any hints on what I'm missing?

Personal experience:

1) don't mix raidtools stuff with mdadm, use only the latter (I'm not
saying you used raidtools, but I found a lot of misleading
documentation lying around)

2) check carefully the UUID of *all* the partitions, I had exactly the
same issue, that I discovered to be caused by a leftover partition that
was part of a different raid set (spurious UUID). At some point in the
bootup the correct set were disassembled.

3) evms can badly intefere with mdadm (or it was LVM?): try to modify a
partition/raid setup and it always appears busy, preventing any
editing.

HTH
 Francesco

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CEST 2008
One 1GHz AMD Athlon 64 Processor, 2GB RAM, 2004.03 Bogomips Total
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