#samba-tool domain backup offline --targetdir . running backup on dirs: /var/db/samba4/private /var/db/samba4 /usr/local/etc Starting transaction on /var/db/samba4/private/secrets (...) What is really hanged is a subprocess that samba-tool starts: /usr/local/bin/tdbbackup -s .copy.tdb /var/db/samba4/private/secrets.ldb This is a long standing issue since Samba 4.10 (which introduced this command). Now I tried upgrading to 4.12, but nothing changed. A discussion on Samba's mailing list suggested this might be caused by an older version of TDB and that that library should be bundled. Building (in Poudriere) with SAMBA4_BUNDLED_TDB=yes, however will produce the following: # samba-tool domain backup offline --targetdir . running backup on dirs: /var/db/samba4/private /var/db/samba4 /usr/local/etc Starting transaction on /var/db/samba4/private/secrets ERROR(<class 'FileNotFoundError'>): uncaught exception - [Errno 2] No such file or directory: '/root/bin/tdbbackup': '/root/bin/tdbbackup' File "/usr/local/lib/python3.7/site-packages/samba/netcmd/__init__.py", line 186, in _run return self.run(*args, **kwargs) File "/usr/local/lib/python3.7/site-packages/samba/netcmd/domain_backup.py", line 1061, in run self.backup_secrets(paths.private_dir, lp, logger) File "/usr/local/lib/python3.7/site-packages/samba/netcmd/domain_backup.py", line 954, in backup_secrets self.offline_tdb_copy(secrets_path + '.ldb') File "/usr/local/lib/python3.7/site-packages/samba/netcmd/domain_backup.py", line 928, in offline_tdb_copy tdb_copy(path, backup_path, readonly=True) File "/usr/local/lib/python3.7/site-packages/samba/tdb_util.py", line 40, in tdb_copy status = subprocess.check_call(tdbbackup_cmd, close_fds=True, shell=False) File "/usr/local/lib/python3.7/subprocess.py", line 358, in check_call retcode = call(*popenargs, **kwargs) File "/usr/local/lib/python3.7/subprocess.py", line 339, in call with Popen(*popenargs, **kwargs) as p: File "/usr/local/lib/python3.7/subprocess.py", line 800, in __init__ restore_signals, start_new_session) File "/usr/local/lib/python3.7/subprocess.py", line 1551, in _execute_child raise child_exception_type(errno_num, err_msg, err_filename) A transaction is still active in ldb context [0x800a3cae0] on /var/db/samba4/private/secrets.ldb
samba412 expired and got removed, can you retry this with a later version?
(In reply to Rene Ladan from comment #1) The problem persists with 4.16.7.