[Bug 1844634] Re: Removals keep removing dependencies if removal of a package fails

[Julian Andres Klode]

** Description changed:

  [Impact]
  
  Assuming packages A and B, with A depending on B. A has a failing prerm
  script.
  
  Expected behavior:
  - A fails to be removed, A and B stay unchanged
  Actual behavior:
  - A fails to be removed
  - B is still removed
  
+ This might crash their system (e.g. if A is systemd and B is
+ libsystemd0).
+ 
  [Test case]
- TBD
+ See Impact. An automated version of the test case (test-apt-get-remove-depends) is included and run on autopkgtest.
  
  [Regression potential]
  We now abort earlier in removal failures, that might be harder to recover from or not, nobody really knows.

** Bug watch added: Debian Bug tracker #935910
   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=935910

** Also affects: apt (Debian) via
   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=935910
   Importance: Unknown
       Status: Unknown

** Changed in: apt (Ubuntu)
   Importance: Undecided => High

** Changed in: apt (Ubuntu)
       Status: New => Fix Committed

** Changed in: apt (Ubuntu)
     Assignee: (unassigned) => Julian Andres Klode (juliank)

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https://bugs.launchpad.net/bugs/1844634

Title:
  Removals keep removing dependencies if removal of a package fails

Status in apt package in Ubuntu:
  Fix Committed
Status in apt package in Debian:
  Unknown

Bug description:
  [Impact]

  Assuming packages A and B, with A depending on B. A has a failing
  prerm script.

  Expected behavior:
  - A fails to be removed, A and B stay unchanged
  Actual behavior:
  - A fails to be removed
  - B is still removed

  This might crash their system (e.g. if A is systemd and B is
  libsystemd0).

  [Test case]
  See Impact. An automated version of the test case (test-apt-get-remove-depends) is included and run on autopkgtest.

  [Regression potential]
  We now abort earlier in removal failures, that might be harder to recover from or not, nobody really knows.

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