feat: add gdm user and group creation for gdm images

config/files/usr/etc/gdm/gdm-useradd

@@ -0,0 +1,4 @@
+#!/usr/bin/sh
+
+getent group gdm > /dev/null || groupadd -r gdm
+getent passwd gdm > /dev/null || useradd -r -g gdm -c "GDM Greeter Account" -d /var/lib/gdm -s /usr/sbin/nologin gdm

config/gdm-systemd.yml

@@ -0,0 +1,4 @@
+type: systemd
+system:
+  enabled:
+    - gdm-boot.service

config/recipe-hyprland-gdm.yml

@@ -24,3 +24,4 @@ modules:
   - from-file: common-scripts.yml
   - from-file: gdm-scripts.yml
   - type: signing
+  - from-file: gdm-systemd.yml

config/recipe-hyprland-nvidia-gdm.yml

@@ -25,3 +25,4 @@ modules:
   - from-file: common-scripts.yml
   - from-file: gdm-scripts.yml
   - type: signing
+  - from-file: gdm-systemd.yml

config/recipe-hyprland-nvidia.yml

@@ -25,4 +25,4 @@ modules:
   - from-file: common-scripts.yml
   - from-file: sddm-scripts.yml
   - type: signing
-  - from-file: common-systemd.yml
+  - from-file: sddm-systemd.yml

config/recipe-hyprland.yml

@@ -24,4 +24,4 @@ modules:
   - from-file: common-scripts.yml
   - from-file: sddm-scripts.yml
   - type: signing
-  - from-file: common-systemd.yml
+  - from-file: sddm-systemd.yml

config/recipe-river-gdm.yml

@@ -22,3 +22,4 @@ modules:
   - from-file: common-scripts.yml
   - from-file: gdm-scripts.yml
   - type: signing
+  - from-file: gdm-systemd.yml

config/recipe-river-nvidia-gdm.yml

@@ -22,3 +22,4 @@ modules:
   - from-file: common-scripts.yml
   - from-file: gdm-scripts.yml
   - type: signing
+  - from-file: gdm-systemd.yml

config/recipe-river-nvidia.yml

@@ -22,4 +22,4 @@ modules:
   - from-file: common-scripts.yml
   - from-file: sddm-scripts.yml
   - type: signing
-  - from-file: common-systemd.yml
+  - from-file: sddm-systemd.yml

config/recipe-river.yml

@@ -22,4 +22,4 @@ modules:
   - from-file: common-scripts.yml
   - from-file: sddm-scripts.yml
   - type: signing
-  - from-file: common-systemd.yml
+  - from-file: sddm-systemd.yml

config/recipe-sway-gdm.yml

@@ -17,3 +17,4 @@ modules:
   - from-file: common-scripts.yml
   - from-file: gdm-scripts.yml
   - type: signing
+  - from-file: gdm-systemd.yml

config/recipe-sway-nvidia-gdm.yml

@@ -18,3 +18,4 @@ modules:
   - from-file: common-scripts.yml
   - from-file: gdm-scripts.yml
   - type: signing
+  - from-file: gdm-systemd.yml

config/recipe-wayfire-gdm.yml

@@ -24,3 +24,4 @@ modules:
   - from-file: common-scripts.yml
   - from-file: gdm-scripts.yml
   - type: signing
+  - from-file: gdm-systemd.yml

config/recipe-wayfire-nvidia-gdm.yml

@@ -24,3 +24,4 @@ modules:
   - from-file: common-scripts.yml
   - from-file: gdm-scripts.yml
   - type: signing
+  - from-file: gdm-systemd.yml

config/recipe-wayfire-nvidia.yml

@@ -24,4 +24,4 @@ modules:
   - from-file: common-scripts.yml
   - from-file: sddm-scripts.yml
   - type: signing
-  - from-file: common-systemd.yml
+  - from-file: sddm-systemd.yml

config/recipe-wayfire.yml

@@ -24,4 +24,4 @@ modules:
   - from-file: common-scripts.yml
   - from-file: sddm-scripts.yml
   - type: signing
-  - from-file: common-systemd.yml
+  - from-file: sddm-systemd.yml

config/systemd/system/gdm-boot.service

@@ -0,0 +1,16 @@
+# Creates an GDM user before GDM runs.
+# See:
+# 	- https://github.com/ublue-os/cinnamon/blob/bf44562ddbed670cdd0d03a45ea08bdb8a6e96a7/system_files/usr/lib/systemd/system/ublue-lightdm-workaround.service#L4
+# 	- https://github.com/ublue-os/main/issues/224#issuecomment-1987851271
+
+[Unit]
+Description=Create GDM user on system boot
+Before=gdm.service
+
+[Service]
+Type=oneshot
+ExecStart=/usr/etc/gdm/gdm-useradd
+RemainAfterExit=yes
+
+[Install]
+WantedBy=multi-user.target

config/systemd/system/sddm-boot.service

@@ -9,7 +9,7 @@ Before=sddm.service
 
 [Service]
 Type=oneshot
-ExecStart=/etc/sddm/sddm-useradd
+ExecStart=/usr/etc/sddm/sddm-useradd
 RemainAfterExit=yes
 
 [Install]