[Bug 1984203] Re: /var/run/reboot-required not created after installing new kernel

[Jonathan Kamens]

Perhaps relevant. On the system where reboot-required was created, I
have this in /etc/default/grub:

GRUB_DEFAULT=0

On the system where reboot-required was not created, I have this
instead:

#GRUB_DEFAULT=
#GRUB_DEFAULT=0

It seems to me that in both of these cases the behavior should be the
same?

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Title:
  /var/run/reboot-required not created after installing new kernel

Status in dpkg package in Ubuntu:
  New

Bug description:
  I just ran `apt-get dist-upgrade -y` on two Jammy systems. On one of
  them, this resulted in /var/run/reboot-required and /var/run/reboot-
  required.pkgs being created:

  jik at jik-x1:~$ ls -l /var/run/reboot-required*
  -rw-r--r-- 1 root root 32 Aug 10 10:09 /var/run/reboot-required
  -rw-r--r-- 1 root root 41 Aug 10 10:09 /var/run/reboot-required.pkgs
  jik at jik-x1:~$ cat /var/run/reboot-required.pkgs
  linux-image-5.15.0-46-generic
  linux-base
  jik at jik-x1:~$ 

  On the other one (the one on which I ran `ubuntu-bug /usr/bin/dpkg` to
  create this issue) the same kernel package was installed during the
  `apt-get dist-upgrade -y` run, but /var/run/reboot-required and
  /var/run/reboot-required.pkgs were NOT created.

  This seems... problematic.

  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: dpkg 1.21.1ubuntu2.1
  ProcVersionSignature: Ubuntu 5.15.0-43.46-generic 5.15.39
  Uname: Linux 5.15.0-43-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.11-0ubuntu82.1
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: ubuntu:GNOME
  Date: Wed Aug 10 10:17:55 2022
  InstallationDate: Installed on 2019-01-02 (1315 days ago)
  InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3)
  SourcePackage: dpkg
  UpgradeStatus: Upgraded to jammy on 2022-02-20 (170 days ago)
  modified.conffile..etc.apport.crashdb.conf: [modified]
  mtime.conffile..etc.apport.crashdb.conf: 2022-08-03T12:55:49.044540

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