[Bug 1898729] Re: shim can end up being removed

[Łukasz Zemczak]

Hello Iain, or anyone else affected,

Accepted shim-signed into bionic-proposed. The package will build now
and be available at https://launchpad.net/ubuntu/+source/shim-
signed/1.37~18.04.9 in a few hours, and then in the -proposed
repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, what testing has been
performed on the package and change the tag from verification-needed-
bionic to verification-done-bionic. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-bionic. In either case, without details of your testing we will
not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: shim-signed (Ubuntu Bionic)
       Status: New => Fix Committed

** Tags added: verification-needed-bionic

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https://bugs.launchpad.net/bugs/1898729

Title:
  shim can end up being removed

Status in shim-signed package in Ubuntu:
  Fix Released
Status in shim-signed source package in Bionic:
  Fix Committed
Status in shim-signed source package in Focal:
  Fix Committed
Status in shim-signed source package in Groovy:
  Fix Released

Bug description:
  [Impact]
  System unbootable because shim-signed was marked auto and removed during upgrade.

  [Test case]
  lxc launch ubuntu:focal shimtest
  lxc exec shimtest apt install shim-signed
  lxc exec shimtest apt-mark auto shim-signed
  lxc exec shimtest apt autoremove # check it's listed
  lxc exec shimtest mount -t tmpfs tmpfs /boot/efi # hack around check
  lxc exec shimtest do-release-upgrade -d
  lxc exec shimtest apt policy shim-signed # ensure shim is still there

  [Regression potential]
  Scripts removing shim-signed will fail and need to pass --allow-remove-essential now.

  [Original bug report]
  I just did a set of package updates in focal that ended up with shim shim-signed mokutil being autoremoved.

  I rebooted without noticing, and had to manually recover the system
  thereafter. :(

  Julian says there was a period of time where these were marked auto. I
  suppose that I installed during this window, and now some dependency
  change meant that as far as apt was concerned they weren't required
  any more.

  Can we please consider never proposing these packages for autoremoval?
  apt has NeverAutoRemove for this which could be used, or some other
  appropriate method.

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