Trying to get machine-readable storage data on a live CD results in an unhandled exception:
vyos@vyos:~$ sudo ${vyos_op_scripts_dir}/storage.py show --raw
Traceback (most recent call last):
File "/usr/libexec/vyos/op_mode/storage.py", line 72, in <module>
res = vyos.opmode.run(sys.modules[__name__])
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3/dist-packages/vyos/opmode.py", line 263, in run
res = func(**args)
^^^^^^^^^^^^
File "/usr/libexec/vyos/op_mode/storage.py", line 65, in show
return _get_raw_data()
^^^^^^^^^^^^^^^
File "/usr/libexec/vyos/op_mode/storage.py", line 48, in _get_raw_data
out = _get_system_storage(only_persistent=True)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/libexec/vyos/op_mode/storage.py", line 40, in _get_system_storage
res = cmd(cmd_str)
^^^^^^^^^^^^
File "/usr/lib/python3/dist-packages/vyos/utils/process.py", line 155, in cmd
raise OSError(code, feedback)
PermissionError: [Errno 1] failed to run command: df -h -t ext4 --output=source,size,used,avail,pcent
returned:
exit code: 1An additional problem is that the raw output is different from the formatted version — the raw version only returns data for persistent storage, while the formatted version prints information about all filesystems, including tmpfs and the like.
I believe the command should not be available on live CD at all, and should always only show persistent FS information.