This Saturday morning, news appeared on Habré about the release of SteamOS. Valve offers users 2 installment options: restore from an paradigm (2.4Gb) and utilise the Debian Installer (960Mb). There are also links to brief instructions for to each one installation method. In the same short article I neediness to tell how to instal SteamOS on a virtual machine.

We volition install using the Debian Installer. In fact, this method is not particularly difficult when using automatic installation.
First, we demand to download the installer itself and VirtualBox directly .
The installer needs to take out and make an ISO double from it. How - resolve for yourself, in this case it does not matter.
After that, we make up a virtual machine for 64-bit Debian:
In the settings you need to enable EFI and 3D acceleration. Apportion operational and video memory to your taste; I personally used 2GB of operational and 128MB of television. We install the installer look-alike into the essential automobile drive.

Settings in pictures for those World Health Organization are not familiar with virtualbox

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We start the essential machine, we do not pay attending to the error "prefix is not set". After a short delay, grub should head start, from which you fundament start the automatic installation. Before starting the installment, grub will down a bit, do not affright.
Installation really goes completely mechanically, so you can distract from the process awhile. Personally, it took me about 30 proceedings to install.

After initiation, we flush into the recovery and put VboxAdditions:

We join the attention deficit disorder-on phonograph record figure of speech (Host + D or through the menu. For those who are not in the know, the host key is written in the lower right corner of the virtual machine screen, by default - Accurate Ctrl)
Create a folder for mounting the disk: mkdir ~/vboxadds/
We look I.D. cd-rom'a: ls /dev/disk/by-Idaho/
Straightaway install: mount /dev/disk/aside-id/ata-[cdrom id] ~/vboxadds/.
Go to the vboxadds folder compact disk ~/vboxadds/and run the installation hand./VBoxLinuxAdditions.scarper
reboot: reboot

After rebooting the system, we see the Debian authority window: we enter the system through the "steam" account (login:, steampass:) steam clean, we use Dwarf as a shell.
Run steam through with the terminal (as because he refuses to streak the carte, at least for Maine) steam. Next, we accept the agreement and wait until steam is updated. We cristal into your steam account, indicating the verification code and remembering the computing device.
We close steam clean and expire (log out) from the report in the system, go to the background account (login: background pass:) desktop. Unsettled the terminal and execute the command ~/post_logon.sh.
After running the book, the system will mechanically boot and try to perform the Capture System Partition off. I don't have intercourse why this is necessary, but in any case this process volition fail and we will again fall under grub. From it, you can immediately boot into SteamOS recovery mode and reinstall VboxAdditions: you no longer need to create a folder, just unite the disk, mount it, run the script and reboot.
This clock full SteamOS will boot. When I offse started, for some reason I always had problems with the web, so if necessary, boot over again.

Some screenshots

Main screen:

Browser:

Desktop:

Also, after restarting the virtual machine, instead of chuck, the UEFI Interactive Shell leave boot. You can run grub from it with the control FS1:\EFI\steamos\grubx64(instead of FS1 information technology can exist FS0).