So far I have tried the following on a EOS Live USB:
sudo mount /sdc2 /mnt
sudo mount /sdc1 /mnt/efi # <-- Seems to be where it's normally mounted according to my /etc/fstab
sudo arch-chroot /mnt
reinstall-kernals
# (...completes fine)
bootctl install
# (seems to run fine but warns me about accessible random seed)
Does not boot but has a Linux bootable option in my bios, when I try to boot nothing happens. Even selecting it in boot override in my bios just refuses to do anything not even an error screen.
I would normally expect to be put into a basic text menu (not grub) which I can select endevour-os, it’s fallback, or windows from. Windows is on a completely seperate drive but to boot into it I need to enable optane in the BIOS which might be messing with things (I have tried booting from it with that option on and off with no difference)
I did try installing grub at some point with the os prober but then realised I was using the default setup of bootctl so removed the /efi/EFI/Linux folder.
Sorry but I’m quite new to arch linux so any help with suggested sanity checks would be much appreciated. I did try the instructions on a few posts before this so this is my last hope before rescuing the files in my /home and reinstalling which would be a massive pain.