Bug#1107685: grub-efi-amd64: "GRUB_CMDLINE_LINUX_DEFAULT="quiet" incorrectly added to /etc/default/grub during upgrade

[Felix Zielcke]

Am Donnerstag, dem 12.06.2025 um 13:47 +1000 schrieb Dutchy:
> -- debconf information:
> * grub2/linux_cmdline_default: quiet
>   grub2/enable_os_prober: false
> * grub2/linux_cmdline: mitigations=off nosmt
> * grub2/gnumach_cmdline:
>   grub2/kfreebsd_cmdline_default: quiet
>   grub2/update_nvram: true
>   grub2/kfreebsd_cmdline:
> * grub2/force_efi_extra_removable: true

Ah sorry.
The problem seems to be that you have set in debconf
grub2/linux_cmdline_default: quiet

Please run
sudo dpkg-reconfigure -p low grub-efi-amd64
and remove the quiet in the debconf prompt.