>Date: Fri, 21 Dec 2001 10:29:43 -0600
>From: Greg Oster <oster@cs.usask.ca>
>
>maximum entropy writes:
>> [...]
>> Mounting all filesystems...
>> mount_ffs: /dev/raid0c on /export: Device busy
>> [...]
>
>The trick here is that raidctl is rebuilding raid0, and will still have 
>/dev/raid0c open, waiting for the rebuild to complete...  One doesn't see 
>this problem if a non-'entire disk' partition is used for mountable partitions. 

OK, that makes sense...I updated the disklabel and fstab to use
/dev/raid0e for the filesystem instead of (ab)using /dev/raid0c, and
now it can be mounted in parallel with the parity rebuild.  Thanks for
the tip!

--
entropy -- it's not just a good idea, it's the second law.