[CentOS] new install and software raid

Gordon Messmer yinyang at eburg.com
Tue Apr 28 17:59:29 UTC 2009

Jerry Geis wrote:
> Is there a reason why after a software raid install (from kickstart)
> that md1 is always unclean. md0 seems fine.
> boot screen says md1 is dirty and
> cat /proc/mdstat show md1 as being rebuilt.

Immediately after they're constructed, all RAID arrays are dirty and 
need to be rebuilt.  Most likely, md0 completes its rebuild during your 
installation, but md1 does not.  After reboot, md1's rebuild needs to 

What you're seeing sounds perfectly normal.

More information about the CentOS mailing list