On 9/30/21 12:41, Chris Murphy wrote:
Seems likely to me some service is not quitting properly, preventing
/
from being unmounted
If that were the case, there might be information about an exit failure
in the log. On the next boot, "journalctl -b -1" might have useful info.
I also wonder if enabling sysrq and using sysrq+'t' would help determine
which process is stuck:
https://www.kernel.org/doc/html/latest/admin-guide/sysrq.html