[Sorry if this is a duplicate, I couldn't figure out how to search.]

Just installed Solus 4.3 Budgie. First time I installed, Solus installer seemed to install okay onto SSD, but then system booted straight to BIOS every time.

Eventually I found that I had to change my SSD's interface from using 4KB LBA size to 512 byte LBA size (using "sudo nvme format /dev/nvme0n1 -l DESIREDLBAFID"). After that, everything worked.

I've been using 4KB LBA size on first EndeavourOS and then openSUSE Tumbleweed, it worked fine. But not on Solus (and also I tried to install ElementaryOS, also failed but in a different way, same cause).

Turns out to be a known bug on Elementary: https://github.com/elementary/installer/issues/620