Can't start oracle after recovery I'm trying to import the database to another instance. So I imported the database with restore controlfile, restore database and recover database command.
When I try to start the database, it complains:
ORA-00603: ORACLE server session terminated by fatal error
ORA-01092: ORACLE instance terminated. Disconnection forced
ORA-00704: bootstrap process failure
ORA-39700: database must be opened with UPGRADE option
Process ID: 14134
Session ID: 969 Serial number: 5700

How can I finish the recover process? I can do startup upgrade, but what next? I'm not running a upgrade job, just migrating the database to a new server.
This happens when you restore the backup with a different version of Oracle software.
Use the same version of Oracle software.
Or you can upgrade the database before opening it normally. For that, use alter database open resetlogs upgrade;, and continue with upgrading the database.