Hi folks, x-session-manager=none on the kernel cmdline does no good if lightdm is installed in the live-image: Prior to checking the contents of /etc/X11/default-display-manager, /etc/init.d/lightdm has a check if that file exists in the first place. If it's not found, lightdm will just start.
To deactivate lightdm, one could specify "text" on the kernel commandline. However, live-config should aim for a consistent handling of DMs. So instead of just deleting the file, the contents of default-display-manager should be modified with sed instead, e.g. ----------8<--------- sed -i "s/\(.*\)/# deactivated by live-config: \1/;" -- /etc/X11/default-display-manager ----------8<--------- If nobody disagrees, I'll push a patch to debian-next. Looking forward to your opinions. Thanks Daniel