In the process of updating our Zen install from 11 to 11.1a. Primary servers upgraded fine. Now trying to push update to satellite servers via the 'System Updates' section in ZCC. However all servers fail to update with the same error:

"An error occurred when trying to execute the move file command (${content.0.path};${ZENWORKS_HOME}/zmd/java/lib/systemupdate/ZENUpdater.jar) on the device. Check the system-update.log on the device for details."

The log file mentioned doesn't really help much:
DEBUG;Running Pre-Install Commands;;
DEBUG;Getting content for PRE_INSTALL steps of update;;
DEBUG;Got 6 pre install commands;;
DEBUG;Running command: /bin/mkdir;;
DEBUG;Running command: ${content.0.path};/opt/novell/zenworks/bin/zenupdater;;
DEBUG;Running command: /bin/chown;;
DEBUG;Running command: /bin/chmod;;
DEBUG;Running command: /bin/sync;;
DEBUG;Running command: ${content.0.path};${ZENWORKS_HOME}/zmd/java/lib/systemupdate/ZENUpdater.jar;;
DEBUG;One or more pre install actions failed. The update will not be processed (Update for ZENworks (11.1a));;


Any help is appreciated.