[Bug 1246102] Re: Fatal error on upgrading from Raring Ringtail To Saucy Salemander. Saving snapshot to BTFRS partion failed.

[Brian Murray]

2013-10-29 12:10:04,262 DEBUG apt btrfs snapshots supported: True
2013-10-29 12:10:06,649 ERROR not handled exception:
Traceback (most recent call last):

  File "/tmp/ubuntu-release-upgrader-pou8qt/saucy", line 10, in <module>
    sys.exit(main())

  File "/tmp/ubuntu-release-upgrader-pou8qt/DistUpgrade/DistUpgradeMain.py", line 243, in main
    if app.run():

  File "/tmp/ubuntu-release-upgrader-pou8qt/DistUpgrade/DistUpgradeController.py", line 1791, in run
    return self.fullUpgrade()

  File "/tmp/ubuntu-release-upgrader-pou8qt/DistUpgrade/DistUpgradeController.py", line 1756, in fullUpgrade
    if not self.doDistUpgrade():

  File "/tmp/ubuntu-release-upgrader-pou8qt/DistUpgrade/DistUpgradeController.py", line 1123, in doDistUpgrade
    self._maybe_create_apt_btrfs_snapshot()

  File "/tmp/ubuntu-release-upgrader-pou8qt/DistUpgrade/DistUpgradeController.py", line 1105, in _maybe_create_apt_btrfs_snapshot
    res = apt_btrfs.create_btrfs_root_snapshot(prefix)

  File "/tmp/ubuntu-release-upgrader-pou8qt/apt_btrfs_snapshot.py", line 169, in create_btrfs_root_snapshot
    self.umount_btrfs_root_volume()

  File "/tmp/ubuntu-release-upgrader-pou8qt/apt_btrfs_snapshot.py", line 155, in umount_btrfs_root_volume
    os.rmdir(self._btrfs_root_mountpoint)

OSError: [Errno 16] Device or resource busy: '/tmp/apt-btrfs-snapshot-
mp-msPOk_'


** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: New => Triaged

** Changed in: ubuntu-release-upgrader (Ubuntu)
   Importance: Undecided => Medium

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https://bugs.launchpad.net/bugs/1246102

Title:
  Fatal error on upgrading from Raring Ringtail To Saucy Salemander.
  Saving snapshot to BTFRS partion failed.

Status in “ubuntu-release-upgrader” package in Ubuntu:
  Triaged

Bug description:
  The upgraded from Raring to Saucy appears to have failed at the point
  where it attempts to save a snapshot. This resulted in a fatal error
  and the output told me to report this as a bug.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: ubuntu-release-upgrader-core 1:0.192.13
  ProcVersionSignature: Ubuntu 3.8.0-32.47-generic 3.8.13.10
  Uname: Linux 3.8.0-32-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.9.2-0ubuntu8.5
  Architecture: amd64
  CrashDB: ubuntu
  Date: Tue Oct 29 14:38:27 2013
  InstallationDate: Installed on 2013-02-21 (250 days ago)
  InstallationMedia: Kubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.1)
  MarkForUpload: True
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  Symptom: dist-upgrade
  UpgradeStatus: Upgraded to raring on 2013-10-29 (0 days ago)

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