[Bug 672177] Re: libc6 upgrade causes umount to fail on shutdown because init cannot be restarted

[Colin Watson]

James' patch appears to have been applied in natty now, so I'm closing
this bug task.  Please reopen if this was incorrect.

sysvinit (2.87dsf-4ubuntu20) natty; urgency=low

  [ Michael Vogt ]
  * debian/patches/100_fix_ftbfs_enoioctlcmd.patch: 
    - cherry pick upstream fix for missing ENOIOCTLCMD, this 
      fixes a FTBFS

  [ James Hunt ]
  * debian/initscripts/etc/init.d/umountroot: Improve handling of
    respawn of init: we now wait for inits map file to change. If this
    doesn't happen within 5 seconds, we unmount forcibly.

 -- Michael Vogt <michael.vogt at ubuntu.com>  Fri, 04 Mar 2011 10:38:34
+0100

** Changed in: sysvinit (Ubuntu Natty)
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/672177

Title:
  libc6 upgrade causes umount to fail on shutdown because init cannot be
  restarted

Status in Upstart:
  Invalid
Status in “eglibc” package in Ubuntu:
  Fix Released
Status in “sysvinit” package in Ubuntu:
  Fix Released
Status in “upstart” package in Ubuntu:
  Fix Released
Status in “eglibc” source package in Lucid:
  Fix Released
Status in “sysvinit” source package in Lucid:
  In Progress
Status in “upstart” source package in Lucid:
  Fix Released
Status in “eglibc” source package in Maverick:
  Fix Released
Status in “sysvinit” source package in Maverick:
  In Progress
Status in “upstart” source package in Maverick:
  Fix Released
Status in “eglibc” source package in Natty:
  Fix Released
Status in “sysvinit” source package in Natty:
  Fix Released
Status in “upstart” source package in Natty:
  Fix Released

Bug description:
  On a clean install of Ubuntu 10.04.1, after upgrading the offer libc6
  upgrade, on the next reboot the root fs can't be properly unmounted
  (mount: / is busy). This causes fsck to run on boot and of course some
  minor issues with the filesystem. This might not be a problem with
  libc6 itself, but a side effect of upgrading in combination with some
  other package (I suspect the init process, so I guess upstart).

  The fsck run, and the orphaned inodes it finds are holding me back
  from installing this on a new server - especially since this already
  happens on a clean install of 10.04.1!

  paul at ubuntu:~$ lsb_release -rd
  Description:    Ubuntu 10.04.1 LTS
  Release:        10.04

  ii  libc6                           2.11.1-0ubuntu7.2
  Embedded GNU C Library: Shared libraries

  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: libc6 2.11.1-0ubuntu7.2
  ProcVersionSignature: Ubuntu 2.6.32-24.39-server 2.6.32.15+drm33.5
  Uname: Linux 2.6.32-24-server x86_64
  Architecture: amd64
  Date: Sun Nov  7 16:17:07 2010
  InstallationMedia: Ubuntu-Server 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.2)
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: eglibc