Preparing system for backup...
Traceback (most recent call last):
  File "upgrade2bos.py", line 185, in
    main(args)
  File "upgrade2bos.py", line 90, in main
    if not platform.backup_firmware(args, ssh, backup_dir, mac):
  File "G:\braiins\braiins-os_am1-s9_ssh_2019-02-21-0-572dd48c\upgrade\platform.py", line 77, in backup_firmware
    ssh.run('/etc/init.d/bmminer.sh', 'stop')
  File "G:\braiins\braiins-os_am1-s9_ssh_2019-02-21-0-572dd48c\upgrade\ssh.py", line 228, in run
    self._check_exit_status(cmd, stdout, stderr)
  File "G:\braiins\braiins-os_am1-s9_ssh_2019-02-21-0-572dd48c\upgrade\ssh.py", line 159, in _check_exit_status
    raise CalledProcessError(returncode, cmd, stdout, stderr)
subprocess.CalledProcessError: Command '/etc/init.d/bmminer.sh stop' returned non-zero exit status 127.