How to install SteamOS without EFI?

Question

Steam

How to install SteamOS without EFI and without automatic partitioning?

Answer 1

It describes how to deal with UEFI. The truth is in English, but I think you can handle it.
w3.reddit.com/r/SteamOS/comments/1su4t1/uefi_requi...

Answer 2

If you don't feel like reading, here's one for you:
1- Download syslinux.zip from here
2- Download the following files and move them to a flash drive in the "grub" folder:
www.l4d3.org/grub-pc_1.99-27+deb7u1+steamos3 +bsos1...
www.l4d3.org/grub-pc-bin_1.99-27+deb7u1+steamos3+b...
3- Unzip SteamOSInstaller.zip to a flash drive.
4- From the syslinux.zip downloaded above, extract the "bios/win32" and "bios/mbr" folders into the "syslinux" folder on the flash drive.
5- Open a command prompt as an administrator and enter the following command, where d is the letter of your flash drive:
d:\syslinux\win32\syslinux.exe --install --mbr --active d:
6- Create the file "syslinux. cfg" and copy the following text into it:
LABEL linux
kernel install.amd/vmlinuz
append initrd=install.amd/gtk/initrd.gz preseed/file=/cdrom/default.preseed DEBCONF_DEBUG=developer desktop=steamos auto=true priority=critical video=vesa:ywrap,mtrr vga \u003d 788 -- quiet
7- Insert the USB flash drive into the computer on which you are going to install the OS and run it. The installer should appear.
Installation will fail on grub because grub-pc is missing, hold Ctrl+Alt and press F2 to go to command prompt, press Enter to activate.
Enter the following command, do not select anything, just click OK and after "Yes":
chroot /target /bin/bash
apt-get install grub-common grub2-common
dpkg -i /media/cdrom/grub/grub-pc-bin_1. 99-27+deb7u1+steamos3+bsos1_amd64.deb
dpkg -i /media/cdrom/grub/grub-pc_1.99-27+deb7u1+steamos3+bsos1_amd64.deb
When done, hold down Ctrl+Alt and F5 to return to the interface.
8- Click "Continue" to continue, select "Yes" to install in MBR, installation will complete.
9- Next, follow the manual installation described above.

Answer 3

Or, right on Habré , a person gave a link to a modified installer image (for installation without UEFI and with the possibility of manual disk partitioning
)