[Bug 1099349] Re: mountall 2.36.3 hangs in recovery-menu (lvm; mountall 2.36 has no issue)

[Michael Wisheu]

Thank you to everyone who was involved in fixing this bug so quickly.

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https://bugs.launchpad.net/bugs/1099349

Title:
  mountall 2.36.3 hangs in recovery-menu (lvm; mountall 2.36 has no
  issue)

Status in “mountall” package in Ubuntu:
  Fix Released
Status in “mountall” source package in Precise:
  Fix Released
Status in “mountall” source package in Quantal:
  Fix Released
Status in “mountall” source package in Raring:
  Fix Released

Bug description:
  [Impact]
  Following the mountall SRUs for bug #643289, mountall --no-events does not work correctly; the lack of events causes mountall to not finish.  This breaks the recovery mode, which invokes mountall --no-events.

  [Test case]
  1. Boot Ubuntu using the 'recovery mode' option.
  2. Choose the 'Enable networking' option.
  3. Observe that mountall hangs.
  4. Reboot and install mountall from -proposed.
  5. Boot Ubuntu using the 'recovery mode' option.
  6. Choose the 'Enable networking' option.
  7. Confirm that mountall no longer hangs.

  [Regression potential]
  Minimal; the code changes should only have any effect when mountall is called with --no-events, which is only done in the recovery menu, and that's currently broken.

  
  Fresh Ubuntu 12.04.1 amd64 install with the following partition layout / lvm setup:
  $ lsblk
  NAME                            MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
  sr0                              11:0    1  1024M  0 rom
  sda                               8:0    0    20G  0 disk
  ├─sda1                            8:1    0   243M  0 part /boot
  ├─sda2                            8:2    0     1K  0 part
  └─sda5                            8:5    0  19.8G  0 part
    ├─u1204--64-swap_1 (dm-0)     252:0    0  1020M  0 lvm  [SWAP]
    ├─u1204--64-root (dm-1)       252:1    0   7.6G  0 lvm  /
    └─u1204--64-usr--local (dm-2) 252:2    0  11.1G  0 lvm  /usr/local

  The installation works as expected and there are no imminent issues during normal usage.
  The issue is with the recovery menu. If someone boots into a rescue entry in the boot menu the rescue menu appears as expected but all entries that remount the root volume rw will hang on mountall.

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