> On Tuesday 11 December 2012 04:52 PM, J. Roeleveld wrote:

<SNIP>

>> Which metadata version did you use for the software raid setup?
>>
>> Can you add "mdadm" to the boot-runlevel?
>>
>
> I'm using metadata version 1.2 for the raid0 array and the type is
> kernel based autodetect.

Ouch, auto-detect does not work with metadata 1.2.
Please read the man-page section:
===
--auto-detect
    Request that the kernel starts any auto-detected arrays. This can only
work if md is compiled into the kernel - not if it is a module. Arrays
can be auto-detected by the kernel if all the components are in
primary MS-DOS partitions with partition type FD, and all use v0.90
metadata. In-kernel autodetect is not recommended for new
installations. Using mdadm to detect and assemble arrays - possibly in
an initrd - is substantially more flexible and should be preferred.
===

> Earlier I went by the raid guide on gentoo.org, but I configured it to
> use kernel based autodetect.
> mdadm anyway was reporting nothing detected (when added to boot
> runlevel) so it's not there in the boot runlevel.
>
> Moreover, since lvm starts up successfully, it doesn't seem to be an
> issue because of mdadm. It's just the sequence that's messed up. :S

Please rebuild the raid-device using v0.90 metadata and try again.

Kind regards,

Joost Roeleveld


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