[Bug 2006589] Re: Anacron service and timer disabled after upgrading from 2.3-33

[Michael Hudson-Doyle]

I think your change looks good.

On the topic of where the units/symlinks are persisted, I don't really
understand quite what you are trying to say (possibly my problem).

I guess the situations where there is an unexpected delay between new-
preinst and new-postinst are when the system crashes or a maintainer
script in a different package fails (I think?). The risk here is that an
explicit systemctl disable anacron.service before "apt install -f" or
whatever gets run will be ignored. I think given the general edge-case-
y-ness of all this I'm OK with this?

The issue of persisting to /run or /var/lib is that the behaviour
depends on if the system is rebooted between preinst and postinst. This
frankly seems a bit surprising -- so I'd prefer you to change to
persisting in /var/lib.

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https://bugs.launchpad.net/bugs/2006589

Title:
  Anacron service and timer disabled after upgrading from 2.3-33

Status in anacron package in Ubuntu:
  Confirmed

Bug description:
  As hinted by https://lists.debian.org/debian-devel-
  announce/2022/11/msg00001.html , anacron 2.3-33's packaging has a bug
  which disables both the timer and service when its postrm script is
  invoked and that includes upgrades from this package.

  We need to work-around this issue since it is the version in kinetic.

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