Steam-Deck.Mount-External-Drive 3.5

Script to Auto-Mount NTFS, BTRFS & exFat SDCards, External USB Drives (or SSD Docks) & Internal Partitions (If you Dual-Boot) on the Steam Deck

NTFS & BTRFS Partitions containing a SteamLibrary at root level or in a folder named SteamLibrary will automatically be added to Steam, exFAT isn't supported as a SteamLibrary but will be Mounted for use with other Launchers or for Media/ROMs etc.

"This is cool! How can I thank you?"

Why not drop me a sub over on my youtube channel ;) Chinballs Gaming

Also Check out all these other things I'm making

Steam OS 3.5 Now supports Ext4 external Drives out the box so see Uninstall if thats all you need!

How does this work?

This script is basically a mirror of Valves own Auto-Mount script (which lives on SteamOS at /usr/lib/hwsupport/steamos-automount.sh ) adding in support for ntfs, btrfs & exFAT and adding rules for Internal Partitions.

Additional RegEx has been added to the rules to allow he mounting of "Full Disk" Formatted drives (eg ones that don't have a partitions table) so even drives that are eg sda or mmcblk0 as well as sda1 or mmcblk0p1 can be mounted.

SteamOS's rule for this lives at /usr/lib/udev/rules.d/99-steamos-automount.rules and because SteamOS has a Read-Only File System, files in /usr/ cannot be changed without removing the Read-Onlyness, however systemd rules can be overwritten due to how systemd prioritieses directories, so by adding a rule with the same name in /etc/udev/rules.d/ we can override the rule without making changes to SteamOS.

Looking for the old code? see https://github.com/scawp/Steam-Deck.Mount-External-Drive/tree/pre-3.5

a udev rule is added to /etc/udev/rules.d/99-steamos-automount.rules which takes priority over /usr/lib/udev/rules.d/99-steamos-automount.rules this then calls systemd /etc/systemd/system/external-drive-mount@[sda|sda1|sda2|sdd1|etc].service that then runs /home/deck/.local/share/scawp/SDMED/automount.sh to Auto Mount any supported SD/External USB/Internal Partitions.

/etc/fstab is not required for mounting in this way, (however if a Device has an fstab entry these scripts will still work)

Video Guide

https://www.youtube.com/watch?v=Yglf1EKBv2A

Operation

The Drive(s) will be Auto-Mounted to /run/media/deck/[LABEL] eg /run/media/deck/External-ssd/ if the Device has no label then the Devices UUID will be used eg /run/media/deck/a12332-12bf-a33ab-eef/

Installation

Via Curl (One Line Install)

In Konsole type curl -sSL https://raw.githubusercontent.com/scawp/Steam-Deck.Mount-External-Drive/main/curl_install.sh | bash

a sudo password is required (run passwd if required first)

Uninstall

sudo rm /etc/udev/rules.d/99-steamos-automount.rules

sudo rm /etc/systemd/system/external-drive-mount@.service

sudo rm -r /home/deck/.local/share/scawp/SDMED

sudo udevadm control --reload

sudo systemctl daemon-reload

WORK IN PROGRESS!

This will probably have bugs, so beware! log bugs under issues!