Done all preliminaries and all was OK.

The uprade has been hanging for an hour on 92% (upgrading packages). The
last lines (from 1 hour ago) in the system-update.log are:
DEBUG;;;Starting process: /opt/novell/zenworks/bin/novell-zenworks-configure
DEBUG;;;command line: -c CleanupCSR -c UnknownLocation

I'm not sure how should I proceed. Help is needed!

Limor Kosovsky
The Hebrew University of Jerusalem