## Osservation

```
# systemctl --failed
  UNIT                       LOAD   ACTIVE SUB    DESCRIPTION                   
��� systemd-remount-fs.service loaded failed failed Remount Root and Kernel File
Systems

LOAD   = Reflects whether the unit definition was properly loaded.
ACTIVE = The high-level unit activation state, i.e. generalization of SUB.
SUB    = The low-level unit activation state, values depend on unit type.

1 loaded units listed. Pass --all to see loaded but inactive units, too.
To show all installed unit files use 'systemctl list-unit-files'.
# systemctl status systemd-remount-fs.service
��� systemd-remount-fs.service - Remount Root and Kernel File Systems
   Loaded: loaded (/usr/lib/systemd/system/systemd-remount-fs.service; static;
vendor preset: disabled)
   Active: failed (Result: exit-code) since Mon 2019-02-11 03:34:13 CET; 3h
49min ago
     Docs: man:systemd-remount-fs.service(8)
           https://www.freedesktop.org/wiki/Software/systemd/APIFileSystems
 Main PID: 761 (code=exited, status=1/FAILURE)

Feb 11 03:34:13 openqaworker4 systemd-remount-fs[761]: mount: /: mount point is
busy.
Feb 11 03:34:13 openqaworker4 systemd-remount-fs[761]: /usr/bin/mount for /
exited with exit status 32.
Feb 11 03:34:13 openqaworker4 systemd[1]: systemd-remount-fs.service: Main
process exited, code=exited, status=1/FAILURE
Feb 11 03:34:13 openqaworker4 systemd[1]: Failed to start Remount Root and
Kernel File Systems.
Feb 11 03:34:13 openqaworker4 systemd[1]: systemd-remount-fs.service: Unit
entered failed state.
Feb 11 03:34:13 openqaworker4 systemd[1]: systemd-remount-fs.service: Failed
with result 'exit-code'.
```