Created attachment 1850413 [details] Logs of a failed boot. Contain artifacts of an attempt to reboot hard (SysRq+S,U,B) towards the end. Description of problem: After updating to the systemd-249.8-1.fc35 testing update, booting didn't complete but dropped me into an emergency shell. Version-Release number of selected component (if applicable): systemd-249.8-1.fc35 How reproducible: Reproducible Steps to Reproduce: 0. Install that version of systemd. 1. Reboot Actual results: I got dropped into an emergency shell. In this shell, attempting to start units with systemctl blocked completely (couldn't Ctrl+C out of it), the dbus system bus would sometimes become unavailable making even an orderly reboot impossible. Expected results: Booting works. 😃 Additional info: Downgrading to systemd-249.7-2.fc35.x86_64 made my system bootable again.
I can confirm the issue. For me pressing Ctrl+D while in emergency mode allows me to continue booting. In my journalctl -xb output I noticed that some systemd services failed to start (start-limit-hit)
Created attachment 1850425 [details] journalctl -xb output
*** Bug 2039900 has been marked as a duplicate of this bug. ***
It looks like the patches for #1956022 were the problem. I'll rebuild with them reverted.
I can also confirm this on two of my DELL Precision machines....
Versions 249.9 solved the issue it looks like.
With version 249.9 the system boots as expected.