On my fresh install I am running into problems with the alembic number.
root@darni ~ # systemctl restart mailman3 ; systemctl restart mailmanwebq
Job for mailman3.service failed because the control process exited with error
code.
See "systemctl status mailman3.service" and "journalctl -xeu mailman3.service"
for details.
Failed to restart mailmanwebq.service: Unit mailmanwebq.service not found.
root@darni ~ # systemctl status mailman3.service
× mailman3.service - GNU Mailing List Manager
Loaded: loaded (/etc/systemd/system/mailman3.service; enabled; preset:
enabled)
Active: failed (Result: exit-code) since Sat 2026-03-07 07:01:03 UTC; 2s
ago
Duration: 23h 33min 7.258s
Invocation: dde1db5581914d96b1da564d537df84a
Process: 1209747 ExecStart=/usr/local/mailman/venv/bin/mailman start
(code=exited, status=1/FAILURE)
Mem peak: 64.8M
CPU: 681ms
Mar 07 07:01:03 darni mailman[1209747]: File
"/usr/lib/python3.13/contextlib.py", line 162, in __exit__
Mar 07 07:01:03 darni mailman[1209747]: self.gen.throw(value)
Mar 07 07:01:03 darni mailman[1209747]: ~~~~~~~~~~~~~~^^^^^^^
Mar 07 07:01:03 darni mailman[1209747]: File
"/usr/local/mailman/venv/lib/python3.13/site-packages/alembic/script/base.py",
line 245, in _catch_revision_errors
Mar 07 07:01:03 darni mailman[1209747]: raise util.CommandError(resolution)
from re
Mar 07 07:01:03 darni mailman[1209747]: alembic.util.exc.CommandError: Can't
locate revision identified by '8cc1f79f4459'
Mar 07 07:01:03 darni systemd[1]: mailman3.service: Control process exited,
code=exited, status=1/FAILURE
Mar 07 07:01:03 darni systemd[1]: mailman3.service: Failed with result
'exit-code'.
Mar 07 07:01:03 darni systemd[1]: Failed to start mailman3.service - GNU
Mailing List Manager.
Mar 07 07:01:03 darni systemd[1]: mailman3.service: Consumed 681ms CPU time
over 727ms wall clock time, 64.8M memory peak.
Indeed:
root@darni ~ # sudo -u postgres psql -d mailman3
psql (18.2 (Debian 18.2-1))
Type "help" for help.
mailman3=# SELECT version_num FROM alembic_version;
version_num
--------------
8cc1f79f4459
(1 row)
Setting the number to say 0
mailman3=# update alembic_version set version_num=0;
UPDATE 1
and repeating the restart yields the same problem.
--
Written by Thomas Krichel http://openlib.org/home/krichel on his 22191st day.
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