Re: Timeout waiting for /dev/md/imsm0 ?

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On 8/17/22 04:04, David F. wrote:
What rules should be used?   I don't see a /dev/md directory, I
created one, stopped the raid (all the /dev/md* devices went away)
and tried to start the raid, same thing and only /dev/md127 gets
created, nothing in /dev/md/ directory and none of the md126 devices ?
  You then get the timeout.

Please check the device-mapper status.

My guess is that device-mapper gets in the way (as it probably will be activated from udev, too), and blocks the devices when mdadm is trying to access them.

Cheers,

Hannes
--
Dr. Hannes Reinecke                Kernel Storage Architect
hare@xxxxxxx                              +49 911 74053 688
SUSE Software Solutions GmbH, Maxfeldstr. 5, 90409 Nürnberg
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