OSError: [Errno 13] Permission denied when executed as snapbtr

[elumbella]

I followed the instructions to install the script. I am able to execute the script with sudo as my regular user but it won't work when logged in as snapbtr. The output is

[snapbtr@rob-thinkpad ~]$ sudo /bin/snapbtrex.py --path /mnt/.snapshots/ --snap /home
Traceback (most recent call last):
  File "/usr/bin/snapbtrex.py", line 922, in <module>
    sys.exit(main(sys.argv))
  File "/usr/bin/snapbtrex.py", line 892, in main
    operations.snap(path=pa.snap)
  File "/usr/bin/snapbtrex.py", line 313, in snap
    self.check_call(args)
  File "/usr/bin/snapbtrex.py", line 268, in check_call
    shell=shell)
  File "/usr/lib/python2.7/subprocess.py", line 394, in __init__
    errread, errwrite)
  File "/usr/lib/python2.7/subprocess.py", line 1047, in _execute_child
    raise child_exception
OSError: [Errno 13] Permission denied

I tried creating a snapshot using "btrfs subvolume create", which works fine, however "btrfs subvolume delete" doesn't, it also throws "Operation not permitted". Maybe this has something to do with it?

[yoshtec]

Hi this sounds like the sudoers file is not correct did you check if the line:
snapbtr ALL=(root:nobody) NOPASSWD:NOEXEC: /bin/btrfs subvolume*
does exist?
Please check where the btrfs tools are via which btrfs it may point to /sbin/btrfsthen you'll have to alter the sudoers file accordingly.

The script uses the snapshot subcommand sudo btrfs subvolume snapshot -r /home /mnt/.snapshot/TIMESTAMP

[elumbella]

I played around with it some more. I then realized, that running snapbtrex.py using sudo was the issue. Running it directly works fine. You might want to edit that in your readme. Thanks for your support!