Public bug reported:
#GRUB_TIMEOUT_STYLE=hidden
has been default setting for at least a decade, also here on my various
machines with multiple OSes. It did work in a reasonable manner:
(wiki.ubuntuusers.de/GRUB_2/Konfiguration) "Die Einstellung hidden bzw.
countdown wird ignoriert und das GRUB-Menü immer angezeigt, wenn mehr als ein
Betriebssystem von GRUB verwaltet wird." (With more than one OSes being
bootable through grub, the setting 'hidden' will be ignored).
This made sense for single OSes (no need to show, and if, with Esc), as well as
with multiple OSes (showing the OS that is going to come up). With my recent
update (release), suddenly no more grub menu showed.
According to
https://askubuntu.com/questions/1526795/grub-menu-doesnt-show-any-longer one
had to set this grub variable to "menu". Immediately the grub menu popped up
again.
All the hassle around this would have been unnecessary without the changed
behaviour of grub with the identical variable. (While this change could be
questioned, this is not my concern here.)
It is an unnecessary bug behaviour to change items with the identical
parameter. For security and user convenience, either the grub default
ought to have been set to the 'safe' (no loss of OS) value of "menu", or
a new parameter introduced; keeping the behaviour of existing parameters
as such (and eventually only withdrawn after extended times of
deprecation, if at all).
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: grub2-common 2.12-1ubuntu7
ProcVersionSignature: Ubuntu 6.8.0-44.44-generic 6.8.12
Uname: Linux 6.8.0-44-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.1
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Sun Sep 15 18:27:31 2024
InstallationDate: Installed on 2021-08-07 (1135 days ago)
InstallationMedia: Kubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64
(20210209.1)
SourcePackage: grub2
UpgradeStatus: Upgraded to noble on 2024-08-30 (16 days ago)
mtime.conffile..etc.init.d.apport: 2024-07-22T16:59:07
** Affects: grub2 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble
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https://bugs.launchpad.net/bugs/2080785
Title:
Wrong defaults after (deprecated) changes: #GRUB_TIMEOUT_STYLE
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