[Bug 1427264] Re: using ecryptfs, creating frameworks fail to bind mount issues

[Christian Dywan]

Once again wasted an hour for nothing downloading tons of packages, as
click very happily downloads the whole package set only to delete it and
fail afterall:

Processing triggers for ca-certificates (20141019ubuntu0.15.04.1) ... 
Updating certificates in /etc/ssl/certs... 
173 added, 0 removed; done. Running hooks in /etc/ca-certificates/update.d....
done. 
Processing triggers for sgml-base (1.26+nmu4ubuntu1) ... 
E: 10mount: umount: /var/lib/schroot/mount/click-ubuntu-sdk-15.04-armhf-78d6d7ed-d487-40f3-827e-3cfe9cba6089/home/maple: 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).) 
E: click-ubuntu-sdk-15.04-armhf-78d6d7ed-d487-40f3-827e-3cfe9cba6089: Chroot setup failed: stage=setup-stop 
umount: /var/lib/schroot/mount/click-ubuntu-sdk-15.04-armhf-78d6d7ed-d487-40f3-827e-3cfe9cba6089/home/maple: target is busy (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1).) 
[...]
Unmount failed... trying to force Unmounting /var/lib/schroot/mount/click-ubuntu-sdk-15.04-armhf-78d6d7ed-d487-40f3-827e-3cfe9cba6089/home/maple failed Deleting /etc/schroot/chroot.d/click-ubuntu-sdk-15.04-armhf Deleting /var/lib/schroot/chroots/click-ubuntu-sdk-15.04-armhf click target was removed successfully 
umount: /var/lib/schroot/mount/click-ubuntu-sdk-15.04-armhf-78d6d7ed-d487-40f3-827e-3cfe9cba6089/home/maple: mountpoint not found umount: /var/lib/schroot/mount/click-ubuntu-sdk-15.04-armhf-78d6d7ed-d487-40f3-827e-3cfe9cba6089/home/maple: mountpoint not found 
---Click exited with errors, please check the output---

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https://bugs.launchpad.net/bugs/1427264

Title:
  using ecryptfs, creating frameworks fail to bind mount issues

Status in click package in Ubuntu:
  Triaged
Status in schroot package in Ubuntu:
  In Progress
Status in schroot package in Debian:
  Confirmed

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

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