Using systemd-boot on Fedora 37

If doing a fresh install, start with an EFI system partition and an ext4 /boot/ partition.

1. Remove unnecessary packages.

   rm -rf /etc/dnf/protected.d/{grub,shim}*
   dnf remove grubby grub2\* shim\*

2. Convert /boot to a VFAT XBOOTLDR partition.

   device=$(findmnt --output=SOURCE --first-only --noheadings --mountpoint /boot)
   umount /boot
   mkfs.vfat -F32 $device
   gdisk /dev/${device%%p}
       # p
       # t <boot_partition_number>
       # ea00
       # w
   partprobe
   blkid
   nano /etc/fstab
       # update /boot filesystem and uuid
   systemctl daemon-reload
   mount /boot

3. Move ESP to /efi.

   umount /boot/efi
   sed -i 's:/boot/efi:/efi:' /etc/fstab
   systemctl daemon-reload
   mkdir /efi
   mount /efi
   rm -rf /efi/EFI/fedora

4. Disable kdumpctl (it needs grubby).

   sudo ln -s /dev/null /etc/kernel/install.d/60-kdump.install
   sudo ln -s /dev/null /etc/kernel/install.d/92-crashkernel.install

5. Make kernel-install use a machine-id subdir in boot.

   mkdir /boot/$(cat /etc/machine-id)

6. Reinstall the kernel.

   dnf reinstall kernel-core

7. Remove old efibootmgr entries with efibootmgr -Bb <entry_number>.

8. Install systemd-boot.

   bootctl install