[Bug 1250109] Re: Please use dpkg-triggers for update-grub when installing or removing kernel packages

[Julian Andres Klode]

update-initramfs -c call by kernel postinst hook is not covered, but we
need to make sure the initramfs is there at kernel configuration point
because we need it to be there when updating boot loaders.

e.g. if we triggered both in that case, update-grub could run before
update-initramfs.

if we included an initramfs-tools hook to run update-grub, update-grub
could be run twice but update-initramfs only once.

I propose we keep this bug for grub2 change to match upstream, but it
may be worth revisiting how we can merge update-initramfs -c and update-
initramfs -u calls when updating kernels and other packages touching
initramfs in one session.

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https://bugs.launchpad.net/bugs/1250109

Title:
  Please use dpkg-triggers for update-grub when installing or removing
  kernel packages

Status in grub2 package in Ubuntu:
  In Progress
Status in initramfs-tools package in Ubuntu:
  Fix Released
Status in linux package in Ubuntu:
  Invalid
Status in grub2 package in Debian:
  Won't Fix

Bug description:
  Currently the kernel package runs update-grub every time one is
  installed or removed.  This results in it being run a dozen times
  during a dist-upgrade, and this is rather time consuming and annoying.
  Please use a dpkg trigger to cause update-grub to be run only once.

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