[Bug 2055294] Re: /usr/lib/grub/grub-multi-install fails on noble-daily

[Thiago Martins]

Hi! I was `do-release-upgrade -d` an Ubuntu 22.04 to Ubuntu 24.04 to
test and got bitten by this bug too! lol

The command `/usr/lib/grub/grub-multi-install --target=x86_64-efi`
returns 10, causing `dpkg --configure grub-efi-amd64-signed` to fail.

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to grub2 in Ubuntu.
https://bugs.launchpad.net/bugs/2055294

Title:
  /usr/lib/grub/grub-multi-install fails on noble-daily

Status in subiquity:
  Invalid
Status in grub2 package in Ubuntu:
  Fix Committed

Bug description:
  I am using subiquity to install the current noble daily ISO (server).

  Subiquity failed the step called "installing grub to target devices"
  and the logs show that /usr/lib/grub/grub-multi-install failed
  silently with exit status 10.

  When running the script with `set -x`, we see the following, which
  seem to indicate that the absence of a debconf selection variable is
  causing trouble:

  + set -e
  + . /usr/share/debconf/confmodule
  ++ '[' '!' '' ']'
  ++ PERL_DL_NONLAZY=1
  ++ export PERL_DL_NONLAZY
  ++ '[' '' ']'
  ++ exec /usr/share/debconf/frontend /usr/lib/grub/grub-multi-install
  + set -e
  + . /usr/share/debconf/confmodule
  ++ '[' '!' 1 ']'
  ++ '[' -z '' ']'
  ++ exec
  ++ '[' '' ']'
  ++ exec
  ++ DEBCONF_REDIR=1
  ++ export DEBCONF_REDIR
  ++ dpkg-query --control-path grub-common templates
  + db_x_loadtemplatefile /var/lib/dpkg/info/grub-common.templates grub-common
  + _db_cmd 'X_LOADTEMPLATEFILE /var/lib/dpkg/info/grub-common.templates' grub-common
  + _db_internal_IFS='     
  '
  + IFS=' '
  + printf '%s\n' 'X_LOADTEMPLATEFILE /var/lib/dpkg/info/grub-common.templates grub-common'
  + IFS='
  '
  + read -r _db_internal_line
  + IFS='     
  '
  + RET=0
  + case ${_db_internal_line%%[     ]*} in
  + return 0
  + cached_available_ids=
  + db_get grub-efi/cloud_style_installation
  + _db_cmd 'GET grub-efi/cloud_style_installation'
  + _db_internal_IFS='     
  '
  + IFS=' '
  + printf '%s\n' 'GET grub-efi/cloud_style_installation'
  + IFS='
  '
  + read -r _db_internal_line
  + IFS='     
  '
  + RET='10 grub-efi/cloud_style_installation doesn'\''t exist'
  + case ${_db_internal_line%%[     ]*} in
  + return 10

To manage notifications about this bug go to:
https://bugs.launchpad.net/subiquity/+bug/2055294/+subscriptions