[pve-devel] [PATCH installer] grub: set debconf value to indicate --removable install

[Fabian Grünbichler]

else we risk that the fallback boot manager and the rest of the Grub components
in /boot run out of sync, which can break booting on systems that use that
fallback entry instead of the regular one..

this debconf variable is read by grub-efi-amd64 and shim(-signed) postinst
script, if set, `--force-extra-removable` gets passed to their grub-install
invocations.

Reported on the forum: https://forum.proxmox.com/threads/162989

Signed-off-by: Fabian Grünbichler <f.gruenbichler at proxmox.com>
---
Reproduced by installing using the 8.0 iso, switching over to grub-efi-amd64
and attempting to boot the fallback entry instead of the 'proxmox' one.

Setting the debconf value before installing grub-efi-amd64 makes it all work
as expected.

 Proxmox/Install.pm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Proxmox/Install.pm b/Proxmox/Install.pm
index c0a17b2..57fd899 100644
--- a/Proxmox/Install.pm
+++ b/Proxmox/Install.pm
@@ -1206,6 +1206,7 @@ postfix postfix/main_mailer_type select No configuration
 keyboard-configuration keyboard-configuration/xkb-keymap select $xkmap
 d-i debian-installer/locale select en_US.UTF-8
 grub-pc grub-pc/install_devices select $grub_install_devices_txt
+grub-efi-amd64 grub2/force_efi_extra_removable boolean true
 _EOD
 
 	my $pkg_count = 0;
-- 
2.39.5