Steam OS UEFI Workaround Method 2
Download Non-UEFI bootable ISO with manual partitioning!
Huge thanks /u/GamePad64 for this method. This is hand-made iso, that has no UEFI dependency with manual partitioning enabled.
- External Torrent Magnet link
- My Public BitTorrent Sync (Read Only) – “BWSL4QC5J7E5HSLNHNR4BSIBA47E6DOZB”
SteamOS is an early alpha and you install it on your own risk!
Installation (2 methods in this scenario)
- Warning: You must use Win32 Disc Imager from Windows to burn this iso to a USB drive per the original posters instructions ( you can reference the manual steps here). GamePas64 (author of method) states, “Do not use UNetBootin, it starts to think, that this is Debian installation, but it isn’t.”
- (Preferred option) Burning the image to a DVD works very well (I have tested this option)
What is it?
*So, basically this ISO was built from original SteamOSInstaller.zip from Valve. *grub-efi was replaced by grub-pc to drop UEFI dependency and apt-cdrom reposory had been rebuilt (Packages.gz and Release files). *default.preseed file was edited to enable manual partitioning *The ISO image was created using grub-mkrescue (it uses xorriso inside) with original grub.cfg.
This image had been tested in VirtualBox with EFI disabled and on real hardware.
- These steps are VERY important, as this installation method is of the type Valve considers a “Custom Installation.”
- After installation is complete, log onto the resulting system (using the Gnome session) with the predefined “steam” account. The username is “desktop” and the password is “desktop”
- Open the “Home” folder and run the file “post_logon.sh” Choose to “Run in Terminal.” This is paramount for big picture mode.
- Enter your sudo password of “desktop”
- Installation will commence and reboot the PC.
- Note: if for some reason the reboot fails to find the kernel, hit “return” and choose the 1st default GRUB boot entry. The OS will then load.
- After picking “Gnome” and logging on with the Steam account (password “steam), hit the “Return to Steam” shortcut on the desktop.
- If you receive a black screen after booting up, likely this is some odd Nvidia issue
- Switch to virtual console 2, a.k.a. tty2, with CTRL+ALT+F2
- Login as “desktop” (password for sudo commands is “desktop)
- Some have suggested the following:
sudo apt-get purge ".*nvidia.*" rm /usr/share/X11/xorg.conf.d/55-nvidia.conf dpkg-reconfigure xserver-xorg sudo reboot
- I myself still received a black screen, so what I did was remove my HDMI cable to my low-profile Nvidia card, and reboot using the DVI cable with no other cables hooked into the monitor I was using. This seemed to do the trick and presented me with the EULA page.
- Accept the EULA
- Boot (hopefully) into SteamOS.