[Bug 1640645] Re: subprocess installed post-installation script returned error exit status 2

[Brian Murray]

Looking further in the log files multiple linux-image-4.4* packages are
marked for upgrade e.g. "Unpacking linux-image-4.4.0-47-generic
(4.4.0-47.68) over (4.4.0-47.68~14.04.1)".  However, packages marked for
upgrade and not included when calculating the amount of free space
needed in boot so we have the following:

2016-11-09 18:57:31,611 DEBUG dir '/boot' needs '0' of
'<DistUpgrade.DistUpgradeCache.MyCache.checkFreeSpace.<locals>.FreeSpace
object at 0x7fe166fe1be0>' (    51766272.000000)

It's not clear to me if any free space is actually required in boot to
upgrade the kernel.

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https://bugs.launchpad.net/bugs/1640645

Title:
  subprocess installed post-installation script returned error exit
  status 2

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

Bug description:
  Could not install 'linux-image-4.4.0-45-generic'

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-release-upgrader-core 1:16.04.17
  ProcVersionSignature: Ubuntu 4.4.0-45.66~14.04.1-generic 4.4.21
  Uname: Linux 4.4.0-45-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Wed Nov  9 20:11:19 2016
  InstallationDate: Installed on 2015-05-24 (535 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_CA:en
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_CA.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  Symptom: release-upgrade
  UpgradeStatus: Upgraded to xenial on 2016-11-10 (0 days ago)
  VarLogDistupgradeAptclonesystemstate.tar.gz: Error: command ['pkexec', 'cat', '/var/log/dist-upgrade/apt-clone_system_state.tar.gz'] failed with exit code 127: Error creating textual authentication agent: Error opening current controlling terminal for the process (`/dev/tty'): No such device or address
  VarLogDistupgradeTermlog:

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