catfishsushi: Switching from Grub/BIOS to systemd-boot/UEFI isn't easy. The most reliable way would be to reinstall Solus. Instructions below.
Looking at your disk you have both LTS and current installed. Are you actually using both? If not: remove them!
This is something like:
- List the kernels using
sudo clr-boot-manager list-kernels
- Remove the unwanted kernels using
sudo clr-boot-manager remove-kernel <name>
- Remove the
linux-current or linux-lts package (depending on which one you want to keep).
A different thing you can try is to get rid of the /boot partition. It is is only really needed if you are not using ext4, or if you are using LVM and/or LUKS. Process would be as follows, but make sure you have a Solus live USB laying around to perform boot recovery if it doesn't work:
- Edit
/etc/fstab and comment the line containing /boot
- Unmount
/boot: sudo umount /boot
- Update your bootloader:
sudo clr-boot-manager update
If that last command errors please uncomment the line in /etc/fstab, execute sudo mount /boot and sudo clr-boot-manager update again.
Lastly, to switch to UEFI you could try doing the following to switch, but I'm not sure if it works:
- Boot from the latest ISO (in UEFI mode) .
- Create a UEFI partition of at least 1GB using gparted (filesystem FAT32 and set the ESP flag) if you don't already have one.
- Perform boot recovery (skip 'repairing packages', 'correcting disks' and the system-wide configuration triggers).
