the first thing that I did has been installing these new packages : fakechroot_2.19-3_all.deb and libfakechroot_2.19-3_arm64.deb
on ubuntu 18.04 but they didn't fix the problem. Having installed the packages that u have suggested have fixed the PAM problem,but now there is another bug,as u can see. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1913629 Title: adduser: \/usr/bin/chfn -f systemd Time Synchronization systemd- timesync' returned error code 1. Exiting.` To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pam/+bug/1913629/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs