[Bug 989585] Re: resolvconf failed to install/upgrade because /etc/resolv.conf immutable

Fri May 4 01:20:13 UTC 2012

This bug was fixed in the package resolvconf - 1.65ubuntu1

---------------
resolvconf (1.65ubuntu1) quantal; urgency=low

  * Merge from debian unstable. Remaining changes:
    - Make /etc/resolv.conf a relative symlink so that it works when
      setting up chroots.
    - Instead of throwing an error that aborts the upgrade when
      /etc/resolv.conf is immutable, pop a debconf error message to let the
      user know what's happening, then clear the immutable flag and continue
      with the installation.  LP: #989585.
    - debian/config, debian/templates, debian/postinst: if we don't know that
      /etc/resolv.conf was being dynamically managed before install (in at
      least some cases), link the original contents of /etc/resolv.conf to
      /etc/resolvconf/resolv.conf.d/tail so that any statically configured
      nameservers aren't lost.  LP: #923685.
    - Use an upstart job instead of sysvinit script.
    - Pre-Depend on the /run-providing version of initscripts instead of
      depending, so that the preinst does the right thing when creating
      /run/resolvconf/interfaces instead of getting clobbered later by a bind
      mount on initscripts upgrade.  LP: #922491.
    - Completely drop the standard_run_subdirs_created helper function from
      debian/postinst, since it serves no purpose here.
    - postinst: Set resolvconf/linkify-resolvconf to false after initial
      conversion, ensuring upgrades won't convert /etc/resolv.conf to
      a symlink if the user manually converted it back to plain text.
      (LP: #922677)
    - Make resolvconf exit 0 when /etc/resolv.conf isn't a symlink
      (instead of exit 1) and update the error message.
    - Move the #DEBHELPER# token in debian/postinst to after the resolv.conf
      symlink is set, so the init script can actually start (since it expects
      /etc/resolv.conf to be a symlink).
    - Eliminate all references to /etc/resolvconf/run.  This should all be done
      directly in /run, there is no reason to support making any of this
      configurable with a symlink since we already have a versioned dependency
      on the version of initscripts that introduces the /run transition.

resolvconf (1.65) unstable; urgency=low

  [ Thomas Hood ]
  * [3f0a1a1] Create /etc/resolvconf/run and its target and subdir
    in the postinst as well as in the preinst (Closes: #662724)
  * [ae16ea8] In postinst, as last resort, create /run/resolvconf/
     even if /run isn't a tmpfs.
  * [25711bf] ifupdown hook scripts: Don't return error to ifupdown
    (Addresses #661591 so far as resolvconf is concerned)
  * [8da29c3] Document that list-records doesn't list empty records.
    Add patterns for biosdevnames (See LP#949473)
  * [a998de3] Update default interface order patterns in list-records
  * [94baf61] resolvconf(8): Update ref to dhclient hook script
    (See LP#953257)

resolvconf (1.64) unstable; urgency=low

  [ Thomas Hood ]
  * [da2bfa4] Wipe more selectively (Closes: #657259)
  * [e5fbaef] Ubuntu backport: on enable-updates, exit with nonzero
    status if and only if updates could not be enabled (i.e., ignore
    update script errors).
  * [e1cb96e] Bump Standards-Version
 -- Stephane Graber <stgraber at ubuntu.com>   Thu, 03 May 2012 21:17:35 -0400

** Changed in: resolvconf (Ubuntu Quantal)
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/989585

Title:
  resolvconf failed to install/upgrade because /etc/resolv.conf
  immutable

Status in “resolvconf” package in Ubuntu:
  Fix Released
Status in “resolvconf” source package in Precise:
  Fix Committed
Status in “resolvconf” source package in Quantal:
  Fix Released

Bug description:
  [Impact] because Network Manager historically would overwrite users'
  local DNS resolver settings on the desktop, a fair number of users
  have marked this file immutable on the filesystem.  This causes an
  upgrade failure when going to 12.04, which makes resolvconf a non-
  optional part of the infrastructure for all users and requires
  /etc/resolv.conf to be replaced by a symlink.

  [Development Fix]
  resolvconf is arch: all and should be pocket-copied to quantal after SRU accept.

  [Test Case]
  1.  Install Ubuntu 11.10
  2.  run: sudo chattr +i /etc/resolv.conf
  3.  do a release upgrade to 12.04
  4.  verify that the upgrade fails with an error from the resolvconf package.
  5.  enable -proposed
  6.  attempt the release upgrade again
  7.  verify that the upgrade completes successfully, and that /etc/resolv.conf has been made a symlink.

  [Regression Potential]
  Since this overrides a filesystem bit that's been explicitly set by the admin, some users may be unhappy with this change.  But this is not a supported configuration, so this should not block the SRU.

  Failed to install during upgrade

  ProblemType: Package
  DistroRelease: Ubuntu 12.04
  Package: resolvconf 1.63ubuntu11
  ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
  Uname: Linux 3.2.0-23-generic x86_64
  ApportVersion: 2.0.1-0ubuntu5
  AptOrdering:
   unity-scope-musicstores: Install
   resolvconf: Configure
   ubuntu-minimal: Configure
   unity-scope-musicstores: Configure
  Architecture: amd64
  Date: Fri Apr 27 11:23:12 2012
  DuplicateSignature:
   Setting up resolvconf (1.63ubuntu11) ...
   resolvconf.postinst: Error: Cannot replace the current /etc/resolv.conf with a symbolic link because it is immutable. To correct this problem, gain root privileges in a terminal and run 'chattr -i /etc/resolv.conf' and then 'dpkg --configure resolvconf'. Aborting.
   dpkg: error processing resolvconf (--configure):
    subprocess installed post-installation script returned error exit status 1
  ErrorMessage: subprocess installed post-installation script returned error exit status 1
  PackageArchitecture: all
  SourcePackage: resolvconf
  Title: package resolvconf 1.63ubuntu11 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
  UpgradeStatus: Upgraded to precise on 2012-04-27 (0 days ago)

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