Description Felix Botner 2021-08-27 15:57:44 CEST

reproducer:
UCS 4.4-8
-> univention-install  univention-radius
-> univention-upgrade # to UCS 5.0-0
-> reboot

-> service freeradius status
● freeradius.service - FreeRADIUS multi-protocol policy server
   Loaded: loaded (/lib/systemd/system/freeradius.service; enabled; vendor preset: enabled)
   Active: activating (auto-restart) (Result: exit-code) since Fri 2021-08-27 15:54:27 CEST; 3s ago
     Docs: man:radiusd(8)
           man:radiusd.conf(5)
           http://wiki.freeradius.org/
           http://networkradius.com/doc/
  Process: 2023 ExecStartPre=/usr/sbin/freeradius $FREERADIUS_OPTIONS -Cxm -lstdout (code=exited, status=1/FAILURE)

Aug 27 15:54:27 master systemd[1]: freeradius.service: Control process exited, code=exited, status=1/FAILURE
Aug 27 15:54:27 master systemd[1]: freeradius.service: Failed with result 'exit-code'.
Aug 27 15:54:27 master systemd[1]: Failed to start FreeRADIUS multi-protocol policy server.


Problem is that during the update /etc/freeradius/3.0/sites-enabled is removed:

freeradius-config.preinst
...
upgrade)
    # Delete any symlinks/files which were created in postinst previously.
    # These are not covered by conffile handling, so they would otherwise not
    # be cleaned up.
    for file in /etc/freeradius/certs/ca.pem \
                /etc/freeradius/certs/server.key \
                /etc/freeradius/certs/server.pem \
                /etc/freeradius/sites-enabled/default \
                /etc/freeradius/sites-enabled/inner-tunnel
    do
      if [ -h "$file" ]
      then
        rm -f "$file"
      fi
    done
...

freeradius.postinst
...
find /etc/freeradius -type d -empty -delete
...

and without /etc/freeradius/3.0/sites-enabled freeradius won't start.

-> freeradius -X
...
/etc/freeradius/3.0/radiusd.conf[826]: Failed reading directory /etc/freeradius/3.0/sites-enabled/: No such file or directory
Errors reading or parsing /etc/freeradius/3.0/radiusd.conf