Serge - I've subscribed you to this bug in hopes that you could tell us if you expect any problems with making the change suggested at the bottom of comment #5 since I know you have a lot of experience in mount namespaces.
To summarize the problem, schroot doesn't handle /home/$USER being a mount point very well. If /home is recursively bound (rbind) into the schroot, then the recursive umount unmounts the /home/$USER outside of the schroot when tearing down the schroot session. I think recursively making /home a slave (rslave) fixes the problems but don't feel comfortable rolling out that change without getting another opinion. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to click in Ubuntu. https://bugs.launchpad.net/bugs/1427264 Title: using ecryptfs, creating frameworks fail to bind mount issues Status in click package in Ubuntu: Triaged Bug description: Using vivid creating framework fails for ecryptfs users, the issue is similar to bug #769595 The userdir is mounted in a way which makes unmounts fail "E: 10mount: umount: /var/lib/schroot/mount/click-ubuntu-sdk-14.10 -armhf-ec6aaf62-31e0-47e9-b2f8-73f0b038fb4d/home/user: target is busy E: 10mount: (In some cases useful info about processes that E: 10mount: use the device is found by lsof(8) or fuser(1).) " changing the fstab line to be "/home/user /home/user none rw,bind 0 0" workarounds the issue To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/click/+bug/1427264/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp

