[Bug 1624835] VarLogDistupgradeApttermlog.txt

[Marius Gedminas]

apport information

** Attachment added: "VarLogDistupgradeApttermlog.txt"
   https://bugs.launchpad.net/bugs/1624835/+attachment/4743008/+files/VarLogDistupgradeApttermlog.txt

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https://bugs.launchpad.net/bugs/1624835

Title:
  14.04 LTS -> 16.04 LTS upgrade breaks in libc's preinst

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  I upgraded a VPS from Ubuntu 14.04 LTS to 16.04 LTS.  During the
  upgrade the libc6 preinst script showed this error:

      Checking for services that may need to be restarted...
      Checking init scripts...
      /var/lib/dpkg/tmp.ci/preinst: 355: /var/lib/dpkg/tmp.ci/preinst: runlevel: not found

  Then the upgrade process hung for, I think, unrelated reasons.

  /sbin/runlevel is part of the 'upstart' package in 14.04, but it was
  moved to systemd-sysv in 16.05.

  At this point in the upgrade upstart already upgraded to the xenial version, but systemd-sysv wasn't yet installed.
  --- 
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  CrashDB: ubuntu
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-release-upgrader (not installed)
  ProcEnviron:
   LC_CTYPE=lt_LT.UTF-8
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=lt_LT.UTF-8
   SHELL=/bin/bash
  Tags:  xenial dist-upgrade
  Uname: Linux 2.6.32-042stab116.2 x86_64
  UpgradeStatus: Upgraded to xenial on 2016-09-18 (0 days ago)
  UserGroups:
   
  _MarkForUpload: True

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