Comment 5 for bug 1952187

I recently upgraded my domain controllers to 'jammy' and this bug has rematerialised:( I think the upstream commit to master must have been after the 4.15 release branch was forked. I checked the domain_backup.py script and the patch applied for 'focal' is absent.

Error message from the backup script:

running backup on dirs: /var/lib/samba/private /var/lib/samba /etc/samba
ERROR(<class 'FileNotFoundError'>): uncaught exception - [Errno 2] No such file or directory: '/var/lib/samba/dfs/netlogon'
  File "/usr/lib/python3/dist-packages/samba/netcmd/__init__.py", line 186, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/samba/netcmd/domain_backup.py", line 1129, in run
    if any(os.path.samefile(full_path, file) for file in all_files):
  File "/usr/lib/python3/dist-packages/samba/netcmd/domain_backup.py", line 1129, in <genexpr>
    if any(os.path.samefile(full_path, file) for file in all_files):
  File "/usr/lib/python3.10/genericpath.py", line 100, in samefile
    s1 = os.stat(f1)

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 22.04.1 LTS
Release: 22.04
Codename: jammy

$ apt-cache policy samba
samba:
  Installed: 2:4.15.9+dfsg-0ubuntu0.2
  Candidate: 2:4.15.9+dfsg-0ubuntu0.2
  Version table:
 *** 2:4.15.9+dfsg-0ubuntu0.2 500
        500 http://gb.archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages
        500 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages
        100 /var/lib/dpkg/status
     2:4.15.5~dfsg-0ubuntu5 500
        500 http://gb.archive.ubuntu.com/ubuntu jammy/main amd64 Packages