Server Administration :: Upgrade 9i To 10g Using RMAN Backup?

I have upgraded a 9i db to 10g on another server using rman backup (9.2.0.8.0 on linux to 10.2.0.4.0 on Linux)

I copied the hot backup - rman from 9i db server to 10g db server

Then I restores the rman backup on the 10g db server opened the database with

alter database open restlogs upgrade;
@?/rdbms/admin/catupgrd.sql
shutdown immediate;
startup restrict
@?/rdbms/admin/utlrp.sql

Now I have all components in VALID state but the db server itself in INVALID state as can be seen from results below

SQL> select comp_name, status, version from dba_registry;

COMP_NAME
--------------------------------------------------------------------------------
STATUS VERSION
----------- ------------------------------
Oracle Database Catalog Views
VALID 10.2.0.4.0

Oracle Database Packages and Types
VALID 10.2.0.4.0

SQL> @?/rdbms/admin/utlu102s.sql TEXT
.
Oracle Database 10.2 Upgrade Status Utility 03-22-2011 10:35:20
.
Component Status Version HH:MM:SS
Oracle Database Server INVALID 10.2.0.4.0 00:06:59
.
Total Upgrade Time: 00:07:05

PL/SQL procedure successfully completed.

SQL>

Has the upgrade failed?

Note that
OS for 9i db server is
Linux 2.6.9-42.EL #1 x86_64 x86_64 x86_64 GNU/Linux
OS for 10g db server is
Linux 2.6.18-53.el5 #1 x86_64 x86_64 x86_64 GNU/Linux