this post was submitted on 20 Jun 2024
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As the title says, I'm trying to multiboot Fedora 40 and Ubuntu 24. The documentation and guides for this all seems pretty outdated through my searching and troubleshooting.

I currently have ubuntu installed. My drive partition table looks like this:

  • sda1 -- EFI (250MB)
  • sda2 -- /boot (ext4, 2GB)
  • sda3 -- empty (ext4, 2TB) <-- Fedora partition
  • sda4 -- Ubuntu 24 (LUKS encrypted, 2TB)

I'm trying to install Fedora now and it's giving me nothing but errors. The most useful guide I found for this specific setup just has you adding sda3 as the installation path (mounted at /) for Fedora and it's supposed to figure out the EFI and boot, but that doesn't happen. In fact, the EFI and /boot partitions show up under an "Unknown" tab in the Fedora custom partition window of the installation. They should be under a tab such as "Ubuntu 24 LTS". Fedora isn't recognizing the ubuntu installation (because it's encrypted?)

Am I wrong in assuming that both OS's should be sharing the EFI and /boot partitions? Maybe that's the issue?

Anybody out there successfully dual booting Linux distros with both distros encrypted?

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[–] lurch@sh.itjust.works 4 points 4 months ago

don't share /boot

it contains stuff from the distro for booting and configuring/installing a boot loader. if both garble their stuff in there it will likely break.