Public bug reported: During a remote system upgrade (18.04 to 19.04) something went south and after reboot the machine is stuck at some place in its boot sequence. SSH works, but trying to log-in with a sudo-capable user results in: "System is booting up. Unprivileged users are not permitted to log in yet. Please come back later. For technical details, see pam_nologin(8)." As Ubuntu has moved away from full root users with passwords + allowing root logins over SSH, I'm totally locked out from my remote system.
There is a bug reported for pam_nologin requesting to provide separate exclusion mechanism but in the meantime it is possible to implement a workaround to exclude administrative users from nologin restriction. Here's the bug: https://github.com/linux-pam/linux-pam/issues/42 And here is the workaround that should be implemented in Ubuntu: https://github.com/linux-pam/linux-pam/issues/42#issuecomment-367450193 ** Affects: pam (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1847902 Title: pam_nologin should optionally exclude users of the "wheel" group from its access restrictions To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pam/+bug/1847902/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
