/usr/share/doc/systemd/README.Debian explains how to debug shutdown hangs. I suspect it's hanging on the relevant .mount unit? Can you "systemctl cat whatever.mount" it in the debug shell and copy that into a file, and attach that here? Would also be nice to capture "journalctl -b > journal.txt" in the debug shell while it's hanging, and attach that here.
/usr/share/ doc/systemd/ README. Debian explains how to debug shutdown hangs. I suspect it's hanging on the relevant .mount unit? Can you "systemctl cat whatever.mount" it in the debug shell and copy that into a file, and attach that here? Would also be nice to capture "journalctl -b > journal.txt" in the debug shell while it's hanging, and attach that here.
Thanks!