[Bug 1911239] [NEW] grub waits 30 sec on every boot

[Bernd Edlinger]

Public bug reported:

grub-common 2.04-1ubuntu26.7 installs two handlers which run in
parallel:

/lib/systemd/system/grub-initrd-fallback.service
which does:
ExecStart=/usr/bin/grub-editenv /boot/grub/grubenv unset initrdfail
ExecStart=/usr/bin/grub-editenv /boot/grub/grubenv unset prev_entry

and /etc/init.d/grub-common
which does:
grub-editenv /boot/grub/grubenv unset recordfail

But since both services are executed at exactly the same time after
a successful boot, the grubenv command fails to update the
file /boot/grub/grubenv due to overwriting each other.
In the end the recordfail environment stays set and the boot screen
is displayed for 30 seconds on each boot.

My workaround is renaming
/lib/systemd/system/grub-initrd-fallback.service
to
/lib/systemd/system/grub-initrd-fallback.service.bak

** Affects: grub2 (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1911239

Title:
  grub waits 30 sec on every boot

Status in grub2 package in Ubuntu:
  New

Bug description:
  grub-common 2.04-1ubuntu26.7 installs two handlers which run in
  parallel:

  /lib/systemd/system/grub-initrd-fallback.service
  which does:
  ExecStart=/usr/bin/grub-editenv /boot/grub/grubenv unset initrdfail
  ExecStart=/usr/bin/grub-editenv /boot/grub/grubenv unset prev_entry

  and /etc/init.d/grub-common
  which does:
  grub-editenv /boot/grub/grubenv unset recordfail

  But since both services are executed at exactly the same time after
  a successful boot, the grubenv command fails to update the
  file /boot/grub/grubenv due to overwriting each other.
  In the end the recordfail environment stays set and the boot screen
  is displayed for 30 seconds on each boot.

  My workaround is renaming
  /lib/systemd/system/grub-initrd-fallback.service
  to
  /lib/systemd/system/grub-initrd-fallback.service.bak

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