Dear Colin,
Am 11.05.21 um 23:37 schrieb Colin Watson:
On Tue, May 11, 2021 at 09:19:28PM +0200, Paul Menzel wrote:I have a Debian installation on a disk, I carry around, and I want to boot on BIOS and (U)EFI systems. This would be possible with the switch `--target`. sudo grub-install --target=i386-pc --boot-directory=/boot /dev/sda and sudo grub-install --target=x86_64-efi /dev/sda Unfortunately I am unable to install both packages in parallel as they conflict (Replaces?) with each other. $ apt show grub-pc […] Replaces: grub, grub-common (<= 1.97~beta2-1), grub-coreboot, grub-efi-amd64, grub-efi-ia32, grub-ieee1275, grub-legacy, grub2 (<< 2.04-18)The purpose of grub-pc and grub-efi-amd64 is to own the system's boot process, and so only one of those may be installed at once; those Conflicts are deliberate. However, to support your use case, you can install grub-pc-bin and grub-efi-amd64-bin in parallel, and doing so gives you enough to be able to run the grub-install commands you're asking for.
As always thank you very much for the fast and helpful reply with the solution. Sorry for not thinking of that myself.
Kind regards, Paul
