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Old 03-30-2009, 09:24 AM   #1
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Question Software RAID Always Fails on Shutdown

I installed Debian and placed my / folder on a software RAID partition /dev/md0. Now when I shut-down the server, I notice I get an error that says:

Unmounting local filesystems...done.
Stopping MD array md0...failed (busy).
Anyone know what causes this or how to correct this? I am guessing this is a problem and something in my system config is not correct. When I install CentOS 5 on the same system with the same disk configuration as software RAID, I get a clean reboot/shutdown. This appears to be visible only in Debian.

Please help!
Old 04-06-2009, 03:46 PM   #2
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It may not actually be a problem. Some distros, Slackware included, have more than one "unmount and stop raid" sequence in their shutdown scripts. Looks like Debian is trying to shutdown the rootfs's raid before unmounting it. Should be harmless assuming it later unmounts the rootfs and turns off. Actually, I see this all the time, but there seems to be no ill effect.

Are you having any problems when you reboot the system, or is it just the message at shutdown that's bothering you? Does your array come up clean?

Last edited by mostlyharmless; 04-06-2009 at 03:49 PM.
Old 04-07-2009, 11:54 AM   #3
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Yes my array comes up clean after the reboot & it is just the message that bugs me. I don't like seeing errors or un-resolved issues on my machine at all. I guess that is the OCD in me. It appears this is a known issue...

I hope they get this fixed. CentOS / RHEL seem to have no problems...


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