I tried installing the newest immutable Holo-ISO (1.1), but after the reboot after the install, the pc goes directly into BIOS. I have used a live-enviroment (kubuntu, since I had it lying around) to check on the disk of the installation, and everything seemed normal. All the partitions were there, so the installer did do something.
Your Issue:
Your device's full specs
Installer used to install?
OS version (/etc/holoiso-release):
(Only for SteamOS Session loading issues) Have you tried launching
gamescope-session
from terminal? If yes, provide a log.Did it work before?