ora-03113~~~在线=，急

服务器异常死机，重启后数据库起不来了
SQL> startup
ORACLE instance started.Total System Global Area  208769024 bytes
Fixed Size                  2226936 bytes
Variable Size             134219016 bytes
Database Buffers           67108864 bytes
Redo Buffers                5214208 bytes
Database mounted.
ORA-03113: end-of-file on communication channel
Process ID: 5369
Session ID: 191 Serial number: 3