On 17.09.2025 19:30 Uhr Richmond wrote: > I had Debian 12 and Opensuse dual booting, with Debian 12 having its > own Grub, and opensuse having its own grub, so I could choose which > system from the UEFI ? firmware settings on grub.
Were they on the same EFI system partition? If so, they have their own directories in this partition with unique names. > Then I installed a new system running Debian 13. During the > installation it installed grub, but afterwards I could not find > Debian 12 anymore. Most likely you overwrote the grub of Debian 12. It uses the same name "debian" as the other version. I recommend creating a separate ESP for the 2nd Debian installation to avoid problems here. -- kind regards Marco Send spam to [email protected]
