On Tue, Sep 08, 2015 at 04:55:14PM +0200, Frans Spiesschaert wrote: > I always use apt-get > and today I experienced for the first time the same problem as Simon > describes. > It happend after an 'apt-get update' on the tjener, which pulled in > quite a lot of packages. > When I thereafter ran 'LC_ALL=C TMP= TMPDIR= /usr/sbin/ltsp-chroot -m -a > i386 apt-get -y update' the update happend as expected, but the > execution of the command ended with the following message: > > umount: /opt/ltsp/i386/proc: target is busy > (In some cases useful info about processes that > use the device is found by lsof(8) or fuser(1).) > Couldn't unmount /opt/ltsp/i386/proc. > umount: /opt/ltsp/i386/dev: target is busy > (In some cases useful info about processes that > use the device is found by lsof(8) or fuser(1).) > Couldn't unmount /opt/ltsp/i386/dev. > > So I suppose the assertion of Simon (about failing to unmount) is > correct. > > I did not had the time yet to further investigate which package upgrade > could be the culprit. I'm unable to reproduce it in a Debian Edu VirtualBox network. Tested on a combi server installed yesterday using the recent USB ISO image and updating a combi server installed some time ago. No idea why it differs. Wolfgang
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