Bug#950175: grub-common: Grub delays 23 seconds to show the menu.

[Bernhard Übelacker]

Package: grub-common
Version: 2.04-5
Severity: wishlist


Dear Maintainer,
I noticed some moths ago a delay between Grub gets
started ("Welcome to GRUB!") and Grub shows the menu.
I switched a few days ago from stable to Bullseye/testing
at this device and tried to find out where this 23 seconds
delay is coming from.

After some tests I found that /etc/grub.d/05_debian_theme
is convinced that the root partition is readable by Grub.

Unfortunately this is not the case, as root is on a micro-sd card,
just boot is on the internal MMC. Also the EFI shell did
not recognize the partition table of that micro-sd, as far as I see.
The "search" command below takes these 23 seconds.

As a workaround I copied grub-16x9.png from
/usr/share/desktop-base/futureprototype-theme/grub
to /boot/grub/ and did "update-grub".

Now the delay is gone and the background image is shown by Grub.

I wonder why the background image is not
copied to the boot partition by default?

Kind regards,
Bernhard



-- /boot/grub/grub.cfg:
...
### BEGIN /etc/grub.d/05_debian_theme ###
insmod part_gpt
insmod ext2
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root  ...
else
...



-- System Information:
Debian Release: bullseye/sid
  APT prefers testing-debug
  APT policy: (500, 'testing-debug'), (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.4.0-3-amd64 (SMP w/4 CPU cores)
Kernel taint flags: TAINT_CRAP, TAINT_UNSIGNED_MODULE
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages grub-common depends on:
ii  gettext-base        0.19.8.1-10
ii  libc6               2.29-9
ii  libdevmapper1.02.1  2:1.02.167-1
ii  libefiboot1         37-2
ii  libefivar1          37-2
ii  libfreetype6        2.10.1-2
ii  libfuse2            2.9.9-2
ii  liblzma5            5.2.4-1+b1

Versions of packages grub-common recommends:
ii  os-prober  1.77

Versions of packages grub-common suggests:
ii  console-setup  1.194
ii  desktop-base   10.0.3
pn  grub-emu       <none>
pn  multiboot-doc  <none>
pn  xorriso        <none>

-- no debconf information