Hi,
Thanks alot, it worked.
But registet the database failed:
I used the following:
$ rman target / catalog rman/rman@rcat

Recovery Manager: Release 8.1.5.0.0 - Production

RMAN-06005: connected to target database: RCAT (DBID=268301244)
RMAN-06008: connected to recovery catalog database

RMAN> shutdown immediate;

RMAN-06405: database closed
RMAN-06404: database dismounted
RMAN-06402: Oracle instance shut down

RMAN> startup mount;

RMAN-06193: connected to target database (not started)
RMAN-06196: Oracle instance started
RMAN-06199: database mounted

Total System Global Area 34897296 bytes

Fixed Size 64912 bytes
Variable Size 17883136 bytes
Database Buffers 16777216 bytes
Redo Buffers 172032 bytes

RMAN> register database;

RMAN-03022: compiling command: register
RMAN-03023: executing command: register
RMAN-03026: error recovery releasing channel resources
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03006: non-retryable error occurred during execution of command: register
RMAN-07004: unhandled exception during command execution on channel default
RMAN-10015: error compiling PL/SQL program
RMAN-10033: error during compilation of job step 1: ORA-01041: internal error. hostdef extension doesn't exist

Any idea what is wrong again.

//Hamhey