I created a second partition on my main drove to install steam games, that way they persist in case I want to reinstall Linux or access from a portable windows install, but wanted it to mount on boot.
In partition manager, for some dumb reason, I presumed that flagging it as ‘boot’ would mean just that.
Obviously this was wrong, and now I can’t unflag the drive for some reason. It says it applies the changes but just leaves it flagged.
Whatever you do never flag your drives as system important (except the one with the OS), I found out the hard way when one died.
Yeah it was pretty silly, I for some reason blanked on the fact that boot is an important flag. Thankfully booting the live media worked