[Bug 1756862] Re: upgrade from 17.10 to 18.04 - apt-clone crashed with SystemError in commit(): installArchives() failed

[Brian Murray]

I think I was encountering a different problem yesterday as I was trying
to ubiquity upgrade an old (not up to date) version of artful. After
updating my artful system and then trying the upgrade I'm encountering
the error message:

"dpkg: error: cannot stat pathname '/tmp/apt-dpkg-install-7IdNNM': No
such file or directory"

This is the one the original reporter experienced.

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Title:
  upgrade from 17.10 to 18.04 - apt-clone crashed with SystemError in
  commit(): installArchives() failed

Status in apt-clone package in Ubuntu:
  Confirmed
Status in apt-clone source package in Bionic:
  Confirmed

Bug description:
  Test Case:
  1. Install 17.10 and apply all updates
  2. boot the ISO of Ubuntu Desktop 18.04
  3. Launch the install and in the partitioning step, select Upgrade from 17.10 to 18.04
  4. Proceed with the rest of the installation

  Expected result
  The system upgrades successfully to 18.04

  Actual result
  This crash

  ProblemType: Crash
  DistroRelease: Ubuntu 18.04
  Package: apt-clone 0.4.1ubuntu2
  ProcVersionSignature: Ubuntu 4.15.0-12.13-generic 4.15.7
  Uname: Linux 4.15.0-12-generic x86_64
  ApportVersion: 2.20.8-0ubuntu10
  Architecture: amd64
  CasperVersion: 1.389
  Date: Mon Mar 19 12:59:14 2018
  ExecutablePath: /usr/bin/apt-clone
  InterpreterPath: /usr/bin/python3.6
  LiveMediaBuild: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180317)
  PackageArchitecture: all
  ProcCmdline: /usr/bin/python3 /usr/bin/apt-clone restore-new-distro /target/ubiquity-apt-clone/apt-clone-state-hostname.tar.gz bionic --destination /target
  Python3Details: /usr/bin/python3.6, Python 3.6.5rc1, python3-minimal, 3.6.4-1
  PythonArgs: ['/usr/bin/apt-clone', 'restore-new-distro', '/target/ubiquity-apt-clone/apt-clone-state-hostname.tar.gz', 'bionic', '--destination', '/target']
  PythonDetails: /usr/bin/python2.7, Python 2.7.14+, python-minimal, 2.7.14-4
  SourcePackage: apt-clone
  Title: apt-clone crashed with SystemError in commit(): installArchives() failed
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

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