We have several z/VM test systems that run either z/VM 5.3, 5.4, or 6.1. All the systems run as guests in the same LPAR under the same z/VM 5.4 host. Of the several, we have only ONE that cannot be reconfigured to run in VCONFIG set to LINUX and CPU type set to IFL. This particular system would be running z/VM 5.4 if it would IPL. Here's the attempt to IPL:
<<< snip >>> SET VCONFIG MODE LINUX MODE = LINUX Storage cleared - system reset. DEFINE CPU 0 TYPE IFL CPU 00 redefined as TYPE IFL Storage cleared - system reset. Q CPUS CPU 00 ID FF04E00020978000 (BASE) STOPPED IFL CPUAFF ON IPL Do you want to IPL the guest? (Yes|No) yes Just one moment... . CTCA 0551 COUPLED TO VRSCS 0551 CTCA 0553 COUPLED TO SS2 1501 HCPMCV1459E The virtual machine is placed in system check-stop state <<< snip >>> As I said, every other one of our test systems IPLs fine with this reconfiguration. The only thing that is obviously different in this guest's directory entry from the others that work is: -> STDEVOPT LIBRARY CTL JR (Steven) Imler CA Sr Sustaining Engineer Tel: +1-703-708-3479 steven.im...@ca.com <mailto:steven.im...@ca.com> <http://www.ca.com/>