> Keep the device open. when the device is closed the in-core disklabel
> is cleared. So the new partition in-core table created by mbrlabel
> would be lost before you can run mount.

Maybe the kernel should sit on it itself for a while?
Actually it could do that for any disklabel...
System startup reads it about a dozen times :-)

	David

-- 
David Laight: david@l8s.co.uk