RMAN Duplication from Active RAC database to non-RAC database

I ran into below error when trying to RMAN duplicate from an active RAC database to a non-RAC database, the issue turned out to be oracle version mismatch between Target and Auxiliary. In my case, both Target and Auxiliary are 11.2.0.2.3, however, PSU 11.2.0.2.3 has 2 portions, one for GI_HOME and one for RDBMS_HOME. On my RAC cluster, both portions of PSU 11.2.0.2.3 were applied, while on my non-RAC host, only database portion of PSU 11.2.0.2.3 was applied. I ended up installing a new RDBMS_HOME and applying both portions of PSU 11.2.0.2.3 to this new RDBMS_HOME, the issue resolved by using this new RDBMS_HOME.

copying current control file
Oracle instance started
Segmentation fault

Another issue I ran into was as below, I was puzzled for a little bit because I know my Auxiliary's SYS password was correct and I was able to use it to startup/shutdown the instance. I had to change my Auxiliary's SYS password to be identical to my Target's SYS password. Once this was done, all went well.

contents of Memory Script:
{
   sql clone "alter system set  db_name =
 ''SA9TOLD'' comment=
 ''Reset to original value by RMAN'' scope=spfile";
   sql clone "alter system reset  db_unique_name scope=spfile";
   shutdown clone immediate;
}
executing Memory Script

sql statement: alter system set  db_name =  ''SA9TOLD'' comment= ''Reset to original value by RMAN'' scope=spfile

sql statement: alter system reset  db_unique_name scope=spfile

Oracle instance shut down
released channel: ch1
released channel: ch2
released channel: ch3
released channel: ch4
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of Duplicate Db command at 11/09/2012 13:27:49
RMAN-05501: aborting duplication of target database
RMAN-03015: error occurred in stored script Memory Script
RMAN-03009: failure of backup command on ch1 channel at 11/09/2012 13:27:39
ORA-17629: Cannot connect to the remote database server
ORA-17627: ORA-01017: invalid username/password; logon denied
ORA-17629: Cannot connect to the remote database server