dx-packages team mailing list archive

[Daniel van Vugt <1773859@xxxxxxxxxxxxxxxxxx>]

** Summary changed:

- upgrades to 18.04 fail
+ Upgrades to 18.04 fail due to systemd-shim

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https://bugs.launchpad.net/bugs/1773859

Title:
  Upgrades to 18.04 fail due to systemd-shim

Status in systemd package in Ubuntu:
  Fix Released
Status in systemd-shim package in Ubuntu:
  Won't Fix
Status in systemd source package in Bionic:
  Fix Released
Status in systemd-shim source package in Bionic:
  Won't Fix
Status in systemd source package in Cosmic:
  Fix Released
Status in systemd-shim source package in Cosmic:
  Won't Fix

Bug description:
  [Impact]

   * Some systems fail to upgrade due to conflicts between systemd and
  the (now removed from the archive) systemd-shim / upstart.

   * Instead of trying to work out what's the problem in ordering /
  removal of diverts, ensure that systemd is never unpacked whilst
  systemd-shim/upstart are still on disk. Thus declare conflicts against
  systemd-shim/upstart packages in systemd package.

  [Test Case]

   * monitor drop-off of upgrades with below reported problem

   * Check that it is possible to upgrade to bionic's libpam-systemd
  from xenial with systemd-shim installed on xenial, ie.

  lxc launch ubuntu-daily:xenial test-shim-upgrade
  lxc exec test-shim-upgrade
  apt update
  apt install systemd-shim
  wget https://deb.debian.org/debian/pool/main/s/systemd-shim/systemd-shim_10-3_amd64.deb
  apt install ./systemd-shim_10-3_amd64.deb 
  sed 's/xenial/bionic/' -i /etc/apt/sources.list
  apt update
  apt install systemd

  this currently passes, however, systemd-shim remains installed. It
  should be removed instead. Apt install systemd should have lines like
  this:

  The following packages will be REMOVED:
    systemd-shim
  ...
  Removing 'diversion of /usr/share/dbus-1/system-services/org.freedesktop.systemd1.service to /usr/share/dbus-1/system-services/org.freedesktop.systemd1.service.systemd by systemd-shim'
  ...

  
  [Regression Potential]

   * systemd-shim/upstart are both removed and not supported in bionic,
  thus forcing their removal via conflicts should bring the system into
  an expected state.

  [Other Info]

   * original bug report

  $ sudo apt upgrade
  Reading package lists... Done
  Building dependency tree
  Reading state information... Done
  Calculating upgrade... Done
  The following packages will be REMOVED:
    systemd-shim
  0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded.
  1 not fully installed or removed.
  After this operation, 71.7 kB disk space will be freed.
  Do you want to continue? [Y/n] y
  (Reading database ... 632222 files and directories currently installed.)
  Removing systemd-shim (9-1bzr4ubuntu1) ...
  Removing 'diversion of /usr/share/dbus-1/system-services/org.freedesktop.systemd1.service to /usr/share/dbus-1/system-services/org.freedesktop.systemd1.service.systemd by systemd-shim'
  dpkg-divert: error: rename involves overwriting '/usr/share/dbus-1/system-services/org.freedesktop.systemd1.service' with
    different file '/usr/share/dbus-1/system-services/org.freedesktop.systemd1.service.systemd', not allowed
  dpkg: error processing package systemd-shim (--remove):
   subprocess installed post-removal script returned error exit status 2
  Errors were encountered while processing:
   systemd-shim
  E: Sub-process /usr/bin/dpkg returned an error code (1)

  Commenting out the dpkg-divert in systemd-shim's postrm solved this
  for me and I was about to continue the upgrade.

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