On Wed, 2012-08-22 at 08:40 +0100, Roger Leigh wrote: > On Tue, Aug 21, 2012 at 06:46:35PM -0700, Ross Boylan wrote: > > I setup a chroot on a snapshot. Part of the setup was > > mount --rbind /dev /mnt/chrtest/dev > > > > I have exited the chroot and, I believe, ended the processes I started. > > umount /mnt/chrtest/dev > > gives umount: /mnt/chrtest/dev: device is busy > > > > How can I get this to work? > > All the answers have been good ones. > > I just wanted to mention that if you want to do this regularly, > the schroot program can automatically snapshot your chroot with > LVM and mount the /dev (and other) filesystems. It then > subsequently umounts the filesystems and deletes the snapshot. > That sounds a lot like what I'm trying to do, including the snapshot. Does schroot do any special tricks to umount dev?
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