Packages in question:
https://github.com/Whonix?utf8=%E2%9C%93&query=grub-
The postinst script of these packages should call update-grub. Otherwise these packages have no effect before a kernel upgrade triggers or the user manually runs it.
Debian has no update-grub trigger yet:
https://bugs.debian.org/481542
Done for grub-screen-resolution package...
run update-grub during postinst so package takes effect right after installation - https://phabricator.whonix.org/T377:
https://github.com/Whonix/grub-screen-resolution/commit/b03aea8ff3a2ad28ec1bec7dba3d4a58e55cceda
Can be easily replicated for the grub-enable-apparmor and #grub-verbose-output package. Just waiting for potential comments on this.
Anyone has any suggestions on the error message when this fails? (@bnvk, @mfc, @MemoryLost)
echo "$DPKG_MAINTSCRIPT_PACKAGE $DPKG_MAINTSCRIPT_NAME ERROR: Running \ 'update-grub' failed with exit code $?. $DPKG_MAINTSCRIPT_PACKAGE is most \ likely only the trigger, not the cause. Unless you know this is not an issue, \ you should fix running 'update-grub', otherwise your system might no longer \ boot." >&2
(It fails open, i.e. package installation will succeed. It's just supposed to be a warning in case this fails.)
run update-grub during postinst so package takes effect right after installation - https://phabricator.whonix.org/T377:
https://github.com/Whonix/grub-output-verbose/commit/1b8e74d70cef051c9d239692a48db8a82f87b62f
https://github.com/Whonix/grub-enable-apparmor/commit/5d609e995fb3478700d53fb915cb3d807caa0ec8