[Bug 20949] mdadm cannot assemble array as cannot open drive with O_EXCL

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http://bugzilla.ubuntu.com/show_bug.cgi?id=20949
Ubuntu | kernel-package





------- Additional Comments From hvy4-idbo at dea.spamcon.org  2005-12-14 10:55 UTC -------
You're going to like this!

ioliver at tera:~ $ sudo losetup /dev/loop/0 /dev/sde
ioliver at tera:~ $ sudo losetup /dev/loop1 /dev/sdf
ioliver at tera:~ $ sudo losetup /dev/loop2 /dev/sdg
ioliver at tera:~ $ sudo losetup /dev/loop3 /dev/sdh

ioliver at tera:~ $ sudo mdadm --assemble /dev/md1 /dev/loop/0 /dev/loop1 /dev/loop2 /dev/loop3
mdadm: /dev/md1 has been started with 4 drives.

So, if I "hide" the drive behind a loop back, then mdadm is perfectly happy with it and will assemble the 
array.  Remember, my other four drives, on an identical controller, didn't require this treatment!

Now that I have a work-around, I'm happier to try rebooting with different kernels/patches etc.

Regards

Ian


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