Environment
Novell ZENworks 7 Desktop Management Support Pack 1 Intermin Release 4- ZDM7 SP1 IR4 PreBoot Services (PXE)
Novell ZENworks 7 Desktop Management on Linux Support Pack 1 Interim Release 4 - ZDML7 SP1 IR4
HP Compaq dc7900 Workstations
Situation
ZDM 7 SP1 IR4 HP Compaq dc7900 hangs / PXE work ignored on 2nd boot
Manual bootcd works on the same hardware
Resolution
Fixed in ZENworks 7 Desktop Management Service Pack 1 Interim Release 4 Hot Patch 4, see KB 3484245 "Updates to Novell ZENworks 7 Desktop Management" which can be found at https://www.novell.com/support