cross-platform backup tool Traceback of failed backup

[Robert Nichols]

Can someone please make sense of this traceback from a rdiff-backup 2.0.5 
client backing up to a rdiff-backup 2.1.3b3 server.

The directory /usr/lib/modules/5.19.12-200.fc36.x86_64/extra is deleted since 
the previous backup. The entire /usr/lib/modules/5.19.12-200.fc36.x86_64 
subtree was deleted by the most recent kernel update. It exists and verifies OK 
in the previous backup.

Warning: Local version 2.0.5 does not match remote version 2.1.3b3.
Exception 'Either diff '<RORPath/140364064494144:
        Index=('usr', 'lib', 'modules', '5.19.12-200.fc36.x86_64', 'extra')
        Data={'type': None, 'filetype': 'snapshot'}>' or base 
'<RPath/140364064904528:
        
Path=/media/sysbk/lenovo-F36/usr/lib/modules/5.19.12-200.fc36.x86_64/extra
        Index=('usr', 'lib', 'modules', '5.19.12-200.fc36.x86_64', 'extra')
        Connection=LocalConnection
        Data={'type': None}>' must be a directory' raised of class '<class 
'AssertionError'>':
  File "/usr/lib64/python3.10/site-packages/rdiff_backup/Main.py", line 395, in 
error_check_Main
    Main(arglist)
  File "/usr/lib64/python3.10/site-packages/rdiff_backup/Main.py", line 417, in 
Main
    take_action(rps)
  File "/usr/lib64/python3.10/site-packages/rdiff_backup/Main.py", line 353, in 
take_action
    Backup(rps[0], rps[1])
  File "/usr/lib64/python3.10/site-packages/rdiff_backup/Main.py", line 439, in 
Backup
    backup.Mirror_and_increment(rpin, rpout, incdir)
  File "/usr/lib64/python3.10/site-packages/rdiff_backup/backup.py", line 55, 
in Mirror_and_increment
    DestS.patch_and_increment(dest_rpath, source_diffiter, inc_rpath)
  File "/usr/lib64/python3.10/site-packages/rdiff_backup/connection.py", line 
526, in __call__
    return self.connection.reval(*(self.name, ) + args)
  File "/usr/lib64/python3.10/site-packages/rdiff_backup/connection.py", line 
439, in reval
    raise result

Traceback (most recent call last):
  File "/usr/bin/rdiff-backup", line 32, in <module>
    rdiff_backup.Main.error_check_Main(sys.argv[1:])
  File "/usr/lib64/python3.10/site-packages/rdiff_backup/Main.py", line 395, in 
error_check_Main
    Main(arglist)
  File "/usr/lib64/python3.10/site-packages/rdiff_backup/Main.py", line 417, in 
Main
    take_action(rps)
  File "/usr/lib64/python3.10/site-packages/rdiff_backup/Main.py", line 353, in 
take_action
    Backup(rps[0], rps[1])
  File "/usr/lib64/python3.10/site-packages/rdiff_backup/Main.py", line 439, in 
Backup
    backup.Mirror_and_increment(rpin, rpout, incdir)
  File "/usr/lib64/python3.10/site-packages/rdiff_backup/backup.py", line 55, 
in Mirror_and_increment
    DestS.patch_and_increment(dest_rpath, source_diffiter, inc_rpath)
  File "/usr/lib64/python3.10/site-packages/rdiff_backup/connection.py", line 
526, in __call__
    return self.connection.reval(*(self.name, ) + args)
  File "/usr/lib64/python3.10/site-packages/rdiff_backup/connection.py", line 
439, in reval
    raise result
AssertionError: Either diff '<RORPath/140364064494144:
        Index=('usr', 'lib', 'modules', '5.19.12-200.fc36.x86_64', 'extra')
        Data={'type': None, 'filetype': 'snapshot'}>' or base 
'<RPath/140364064904528:
        
Path=/media/sysbk/lenovo-F36/usr/lib/modules/5.19.12-200.fc36.x86_64/extra
        Index=('usr', 'lib', 'modules', '5.19.12-200.fc36.x86_64', 'extra')
        Connection=LocalConnection
        Data={'type': None}>' must be a directory
WARNING: this command line interface is deprecated and will disappear, start 
using the new one as described with '--new --help'.
NOTE: Extended attributes not supported by filesystem at path 
/media/sysbk/lenovo-F36/rdiff-backup-data/rdiff-backup.tmp.0 due to exception 
'[Errno 95] Operation not supported'
Traceback (most recent call last):
  File "/usr/bin/rdiff-backup", line 11, in <module>
    load_entry_point('rdiff-backup==2.1.3b3', 'console_scripts', 
'rdiff-backup')()
  File "/usr/lib64/python3.6/site-packages/rdiffbackup/run.py", line 37, in main
    sys.exit(main_run(sys.argv[1:]))
  File "/usr/lib64/python3.6/site-packages/rdiffbackup/run.py", line 105, in 
main_run
    ret_val |= conn_act.run()
  File "/usr/lib64/python3.6/site-packages/rdiffbackup/actions/server.py", line 
66, in run
    sys.stdout.buffer).Server()
  File "/usr/lib64/python3.6/site-packages/rdiff_backup/connection.py", line 
404, in Server
    self._get_response(-1)
  File "/usr/lib64/python3.6/site-packages/rdiff_backup/connection.py", line 
448, in _get_response
    req_num, object = self._get()
  File "/usr/lib64/python3.6/site-packages/rdiff_backup/connection.py", line 
298, in _get
    hdr=header_string))
rdiff_backup.connection.ConnectionReadError: Truncated header <b''> (problem 
probably originated remotely)

--
Bob Nichols     "NOSPAM" is really part of my email address.
                Do NOT delete it.