[Bug 1936442] Re: In-place upgrading from Pop!_OS to Kubuntu had a weird error

[Ubuntu Foundations Team Bug Bot]

Exception during installation:
Jul 15 18:24:55 kubuntu /plugininstall.py: Traceback (most recent call last):
Jul 15 18:24:55 kubuntu /plugininstall.py:   File "/usr/share/ubiquity/plugininstall.py", line 252, in run
Jul 15 18:24:55 kubuntu /plugininstall.py:     self.apt_clone_restore()
Jul 15 18:24:55 kubuntu /plugininstall.py:   File "/usr/share/ubiquity/plugininstall.py", line 1523, in apt_clone_restore
Jul 15 18:24:55 kubuntu /plugininstall.py:     subprocess.check_call(
Jul 15 18:24:55 kubuntu /plugininstall.py:   File "/usr/lib/python3.8/subprocess.py", line 364, in check_call
Jul 15 18:24:55 kubuntu /plugininstall.py:     raise CalledProcessError(retcode, cmd)
Jul 15 18:24:55 kubuntu /plugininstall.py: subprocess.CalledProcessError: Command '['apt-clone', 'restore-new-distro', '/target/ubiquity-apt-clone/apt-clone-state-kubuntu.tar.gz', 'focal', '--destination', '/target']' returned non-zero exit status 1.
Jul 15 18:24:55 kubuntu /plugininstall.py: 


** Tags added: installer-crash

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https://bugs.launchpad.net/bugs/1936442

Title:
  In-place upgrading from Pop!_OS to Kubuntu had a weird error

Status in ubiquity package in Ubuntu:
  New

Bug description:
  While in-place upgrading from Pop!_OS to Kubuntu, there was an error
  with re-installing my apps. And then the installer threw an error and
  asked me to debug it accordingly.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ubiquity 20.04.15.10 [modified: lib/partman/automatically_partition/question]
  ProcVersionSignature: Ubuntu 5.8.0-43.49~20.04.1-generic 5.8.18
  Uname: Linux 5.8.0-43-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.16
  Architecture: amd64
  CasperMD5CheckResult: skip
  CasperVersion: 1.445.1
  CurrentDesktop: KDE
  Date: Thu Jul 15 18:25:24 2021
  InstallCmdLine: persistent file=/cdrom/preseed/kubuntu.seed maybe-ubiquity initrd=/casper/initrd quiet splash --- maybe-ubiquity
  LiveMediaBuild: Kubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1)
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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