[linux-lvm] "umount" LVM stuff

[David Corbin]

I have created a RAID1 drive.  I've created an LVM setup on top of it so 
I can easily repartition it "at will".  However, I need to do something 
to adjust the RAID device, and I cannot because it is "busy".  What is 
the correct way to "unmount" all the LVM stuff so that nothing is 
currently running on top of /dev/md0, without permanently changing any 
of my LVM configuration?

Thanks
David