I got this message during the upgrade:

2009-11-24 13:33:41 /opt/novell/xad/sbin/upgrade_sysvol.pl:1006 The DNS
SRV records are not correct. This may result in failure of further ADC
installations. For details on resolving this issue, refer the
Troubleshooting chapter in the DSfW Administration guide.

But I cannot find anything about that in the troubleshooting chapter.
Any idea?

The server seems to be running fine though, so I guess it's not a big