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-rw-r--r--nixos/modules/installer/cd-dvd/installation-cd-graphical-base.nix3
-rw-r--r--nixos/modules/installer/cd-dvd/iso-image.nix8
2 files changed, 8 insertions, 3 deletions
diff --git a/nixos/modules/installer/cd-dvd/installation-cd-graphical-base.nix b/nixos/modules/installer/cd-dvd/installation-cd-graphical-base.nix
index 1578e1547bc..719ba5ffb12 100644
--- a/nixos/modules/installer/cd-dvd/installation-cd-graphical-base.nix
+++ b/nixos/modules/installer/cd-dvd/installation-cd-graphical-base.nix
@@ -25,9 +25,6 @@ with lib;
   services.xserver = {
     enable = true;
 
-    # Don't start the X server by default.
-    autorun = mkForce false;
-
     # Automatically login as nixos.
     displayManager.slim = {
       enable = true;
diff --git a/nixos/modules/installer/cd-dvd/iso-image.nix b/nixos/modules/installer/cd-dvd/iso-image.nix
index 6595d0f30f9..009f1e2c543 100644
--- a/nixos/modules/installer/cd-dvd/iso-image.nix
+++ b/nixos/modules/installer/cd-dvd/iso-image.nix
@@ -290,6 +290,14 @@ let
         ${buildMenuAdditionalParamsGrub2 config "video=1920x1080@60"}
       }
 
+      # If we boot into a graphical environment where X is autoran
+      # and always crashes, it makes the media unusable. Allow the user
+      # to disable this.
+      submenu "Disable display-manager" --class quirk-disable-displaymanager {
+        ${grubMenuCfg}
+        ${buildMenuAdditionalParamsGrub2 config "systemd.mask=display-manager.service"}
+      }
+
       # Some laptop and convertibles have the panel installed in an
       # inconvenient way, rotated away from the keyboard.
       # Those entries makes it easier to use the installer.