RMAN-06403 When registering remote target DB

Question

I'm running Oracle 10.2 Enterprise on RHEL4 (local pc) and Solaris (target db). I have a test db locally on my PC. I established the recovery catalog and successfully tested out backup functionality on my local test db. Now, I reset my SID and attempt to register a remote target database from within RMAN, I get the below error:
[oracle@tony dbs]$ rman target / \ catalog rman/rman@t_dev
Recovery Manager: Release 10.2.0.1.0 - Production on Mon Jun 25 16:04:41 2007
Copyright (c) 1982, 2005, Oracle. All rights reserved.
connected to target database (not started)
connected to recovery catalog database
RMAN> register database;
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of register command at 06/25/2007 16:04:45
RMAN-06403: could not obtain a fully authorized session
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
Linux Error: 2: No such file or directory
The recovery catalog database is running. The target database is also running. I can tnsping the target database and also connect via sqlplus with the connect string username/password@target_db.
Why am I generating this error connecting to a remote db in rman?
Thanks.

Answer 1

I get the below error when I grant sysdba & sysoper to rman. This was suggested in another post:
SQL> grant sysdba to rman;
Grant succeeded.
SQL> grant sysoper to rman;
Grant succeeded.
SQL> exit
Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options
[oracle@tony dbs]$ rman target sys/oracle@es_dev catalog rman/rman@t_dev
Recovery Manager: Release 10.2.0.1.0 - Production on Tue Jun 26 17:19:22 2007
Copyright (c) 1982, 2005, Oracle. All rights reserved.
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-00554: initialization of internal recovery manager package failed
RMAN-04005: error from target database:
ORA-01031: insufficient privileges