Please take time to read the following!
These scripts are written for, and developed on official Valve SteamOS installations. By using this repository, you accept all associated risk. If you are not comfortable using unofficial software and scripts, I do not suggest continuing.
Usage of these scripts is at your own risk! If you are at all concerned about the safety of your SteamOS installation, please have a recent or base root partition backup ready! This is typically captured when SteamOS is first installed. If you wish to update it, and feel ok doing so, please do so now. While this does not protect you from all things included, it will preserve and restore the vital parts of SteamOS.
This can be found in the grub boot menu when you first start your PC. Pressing Esc right after POST or before the SteamOS boot menu will half the process and present the boot menu itself to you. If the boot process dissappears too quickly for your tastes, change the GRUB_HIDDEN_TIMEOUT_QUIET to true and the GRUB_TIMEOUT settings to 3 or 4 seconds in /etc/default/grub. Please reference the example snippet below. You will then need to run sudo update-grub at a terminal window to update the grub boot file.
GRUB_DEFAULT=0
GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=false
GRUB_TIMEOUT=3
If any of this is foreign, or greek to you, it may be best to not proceed. However, a proper root backup should be fine if you do harm to your system. Please be advised that the root partition recovery will not touch the /home user partition. Any files contained within /home will be preserved. Besides the root partition, please take care to backup any files you are concerned about.
Apt-pinning is implemented in the configure-repos.sh script to ensure Steam and SteamOS release still take highest priority. LibreGeek / SteamOS-Tools packages follow suit in priority. Beneath this, Debian and Debian-Backports are given a lower priority. For details on current pin levels, please reference these lines of code. If the line number is off, the section is titled "# Create and add required text to preferences file".
Apt-pin preferences are subject to change. Ideally, the testing branch will be tested properly before hand, and package policy checked with apt-cache policy as well. Please submit any suggestions or corrections anyone feels should be made as a pull request.
Please pay careful attention while installing software lists, packages, or using any scripts that require software installation. I do my best to ensure no software list or singular package is going to remove or overwrite a Valve SteamOS/Steam package, but please be advised. If a software routine, or software install requires to remove* software, please read the output throughly before proceeding.
Removing software packages can be tricky, so while there is a "uninstall" option to several scripts, please excercise caution, or remove packages one by one to ensure they will not remove critical SteamOS packages. A listing of default SteamOS packages can be found on Distrowatch, as well as http://repo.steampowered.com.
If you disregard any of these points, I will not be responsible for damage done to your SteamOS installation. Please heed these warnings! Mistakes happen with packages, upgrades, and the like. If you experience any issues, please submit an issues ticket.