I'm trying to install SteamOS from hard drive partition where I unzipped installer zip.
I was able to boot into installer with help of my other OS grub, but now I'm stuck at disk partitioning. In manual partitioning, I can only choose fat16, fat32, swap or none as a partition role. I can't choose extX and thus I can't specify my root file system. I'm afraid of using auto partitioning because it will ruin my main hwrd drive and/or overwrite partition with the installer. Please help.
UPD: This might be related to installer not able to find and load modules. Where should they reside? I guess the normal procedure was disrupted by booting from hdd. Specifically, extX module is nowhere to be found.