UCS Upgrade to 4.3-2 errata237 from errata234

UCS - Univention Corporate Server
#1

I have two UCS systems in the role of Domain Controller Master that are stuck in upgrading from 4.3-2 errata234 to errata237. The upgrade log is locked and it appears there a bunch of CRON jobs running for sendmail.

Checking systemctl --failed states the following services have failed:

apt-daily-upgrade.service
apt-daily.service
phpsessionclean.service
univention-s4-connector.service

Reviewing journalctl -xe on both systems shows repeated entries of sshd received disconnects from the UCS systems in the role of Domain Controller Backup.

Any ideas on how to resolve the upgrade issues?

#2

Hey,

stupid question, but — have you tried rebooting?

Sure, you can try starting to kill all processes that look like they have something to do with doing upgrades, but rebooting just might be faster and safer (in the sense that you won’t accidentally kill processes that should be running).

The S4 connector service should always be running on your DC Master. If it isn’t, you’ll quickly run into problems as objects aren’t synchronized between your OpenLDAP and your Samba4 LDAP anymore. So even if you chose not to reboot but to kill processes, make sure to restart the S4 connector.

phpsessionclean.service might be due to php-common being in state rc or something like that. That service tries to run /usr/lib/php/sessionclean. Try running it manually and see what errors occur.

Kind regards
mosu

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