stuck on Clone database creation step

I'm try installing Oracle 10g on a pSeries RHEL 4.

I'm on the "Database Configuration Assistant" screen and the "Clone database creation in
progress" bar shows 2% complete and is stuck there. I've waited a few hours and it hasn't moved. There no disk activity and no errors so I don' know what is going on.

A tail of trace.log under cfgtoollogs/dbca shows,

[Thread-3] [12:49:43:940] [Oratab.getTempFile:710] Temp oratab: /tmp/
oratab
[Thread-3] [12:49:44:480] [CloneRmanRestoreStep.executeImpl:217]
Instance Creation went fine..........
[Thread-3] [12:49:44:481] [CloneRmanRestoreStep.executeImpl:224]
db_recovery_file_dest=/u01/app/oracle/flash_recovery_area
[Thread-3] [12:49:44:481] [CloneRmanRestoreStep.executeImpl:227]
db_recovery_file_dest_size=2147483648
[Thread-3] [12:49:44:783] [SQLEngine.setSpool:1743] old Spool = null
[Thread-3] [12:49:44:784] [SQLEngine.setSpool:1744] Setting Spool = /
u01/app/oracle/oracle/product/10.2.0/db_1/cfgtoollogs/dbca/orcl/ CloneRmanRestore.log
[Thread-3] [12:49:44:789] [SQLEngine.setSpool:1745] Is spool
appendable? --> true
[Thread-3] [12:49:44:790] [CloneRmanRestoreStep.executeImpl:320]
starting with pfile=/u01/app/oracle/admin/orcl/pfile/init.ora Received on Mon Oct 06 2008 - 16:34:21 CDT