--> Falling back to /tmp/ for logging. Can't use /var/log/ceph/ceph-volume-systemd.log
--> [Errno 30] Read-only file system: '/var/log/ceph/ceph-volume-systemd.log'
Traceback (most recent call last):
  File "/usr/bin/ceph-volume-systemd", line 33, in <module>
    sys.exit(load_entry_point('ceph-volume==1.0.0', 'console_scripts', 'ceph-volume-systemd')())
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/ceph_volume/systemd/main.py", line 89, in main
    sub_command = parse_subcommand(suffix)
                  ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/ceph_volume/systemd/main.py", line 17, in parse_subcommand
    raise SuffixParsingError('subcommand', string)
ceph_volume.exceptions.SuffixParsingError: Unable to parse the --help from systemd suffix: subcommand