This can only happen if you or another program modified the original file. Josef Miegl On August 19, 2020 9:02:12 PM GMT+02:00, Manuel Reimer <mail+archgeneral@xxxxxxxxxxx> wrote: >Hello, > >I know that Arch is not for the "average user" and some background >knowledge is expected, but this was the first time I needed a boot >stick >since I think at least one year. > >Some minutes ago I did a regular system update and after that decided >to >reboot. After reboot I was unable to log into my system. After fiddling > >a bit I rebooted to an Arch boot stick to find the following message in > >pacman.log: > >[2020-08-19T20:42:55+0200] [ALPM] warning: /etc/pam.d/system-login >installed as >/etc/pam.d/system-login.pacnew > >As this seemed to be a candidate that may cause login problems, I >deleted "system-login" and moved the ".pacnew" into place. > >After reboot I'm now able to log in again... > >IMHO something like this should not happen... > >Maybe it's worth a note on the Arch homepage that it is important to >move this pacnew into place before reboot? > >Manuel