this post was submitted on 12 Aug 2023
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Nix / NixOS

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I've tried to dual boot with Fedora, NixOS being installed first, but now GRUB menu shows only options for Fedora and I lost my precious NixOS installation. Already tried everything described on Fedora wiki and various Internet sources, but to no avail. Worth mentioning that both os-prober and grub2-mkconfig finds Nix installation but it is not added to grub config.

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[–] [email protected] 1 points 1 year ago

I recently dual booted NixOS with Linux Mint and mounted /boot partition of NixOS to /boot/efi partition of Linux Mint (since it says on the wiki that NixOS uses UEFI partition as /boot directory). I didn't have any issue since I was using systemd-boot. Did you mount the partitions correctly?