[Bug 1821252] Please test proposed package

[Brian Murray]

Hello Steven, or anyone else affected,

Accepted friendly-recovery into bionic-proposed. The package will build
now and be available at https://launchpad.net/ubuntu/+source/friendly-
recovery/0.2.38ubuntu1.1 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 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: friendly-recovery (Ubuntu Xenial)
       Status: In Progress => Fix Committed

** Tags added: verification-needed-xenial

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https://bugs.launchpad.net/bugs/1821252

Title:
  systemctl set-default breaks recovery mode

Status in friendly-recovery package in Ubuntu:
  Fix Released
Status in friendly-recovery source package in Xenial:
  Fix Committed
Status in friendly-recovery source package in Bionic:
  Fix Committed
Status in friendly-recovery source package in Cosmic:
  Fix Committed
Status in friendly-recovery source package in Disco:
  Fix Committed
Status in friendly-recovery source package in Eoan:
  Fix Released

Bug description:
  [Impact]

   * A recovery mode boot is effectively a normal boot on any system
  that has ever had systemctl set-default run on it, i.e., the recovery
  kernel parameter does nothing. In particular, ubiquity calls systemctl
  set-default as part of the oem-config process, rendering recovery mode
  useless on any oem-configured machine.

   * This is a regression from previous behavior, where recovery mode
  would override a user-set default target.

   * This would also restore the intuitive behavior of this package. It
  is intended to be run by setting a kernel parameter for a one-time
  boot, and should therefore take priority over any other settings (such
  as configuring a different default target).

  [Test Case]

   * Run systemctl set-default multi-user.target

   * Use the GRUB menu to try to boot into recovery mode

   * Observe that you end up at a TTY, not in recovery mode

  [Regression Potential]

   * Possible regression if someone set recovery as a default kernel
  parameter, then relied on the default systemd target to override it.
  This seems like an unlikely use-case.

  [Original Description]

  Fresh Ubuntu 18.04.2 server install

  Try to boot to recovery mode from GRUB. Works correctly.

  Use systemctl to set a different default, say systemctl set-default
  multi-user.target

  Try to boot to recovery mode from GRUB. End up at getty and not the
  recovery menu.

  Delete /etc/systemd/system/default.target* and recovery mode works
  normally again.

  I believe this can be fixed by changing normaldir to earlydir in the
  generator.

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