Extra steps for launching cage on boot with systemd

[dpellegr]

I have been following the wiki page --> https://github.com/cage-kiosk/cage/wiki/Starting-Cage-on-boot-with-systemd but I needed to take few extra actions to make it work and I thought reporting my experience here.

First of all I got rid of the offending line Alias=display-manager.service as suggested here: https://bbs.archlinux.org/viewtopic.php?id=145075 otherwise I was stuck on

# systemctl enable [email protected]
Failed to enable unit: Cannot alias [email protected] as display-manager.service

Then I needed to systemctl start seatd.service and add the cage user to the seat group usermod -a -G seat cage https://bbs.archlinux.org/viewtopic.php?id=274869

I am now up and running, thanks for the nice work!