归档RMAN备份集都没了的恢复

ALLSTARS_ORACLE

刚刚，我把备份集跟归档都删除了，然后我用init.ora创建了SPFILE，控制文件有备份，就用RMAN恢复了，然后我打开数据库时提示：
SQL> alter database open resetlogs;
alter database open resetlogs
*
ERROR at line 1:
ORA-01152: file 1 was not restored from a sufficiently old backup
ORA-01110: data file 1: '/u01/app/oracle/oradata/primary/system01.dbf'

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另外，我原本的DBF还都存在，这时我该如何恢复？



这个问题解决了，但又出现个新问题，
SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-01092: ORACLE instance terminated. Disconnection forced
ORA-00704: bootstrap process failure
ORA-00704: bootstrap process failure
ORA-00604: error occurred at recursive SQL level 1
ORA-01555: snapshot too old: rollback segment number 10 with name
"_SYSSMU10_3550978943$" too small
Process ID: 16586
Session ID: 1 Serial number: 7
无法打开数据库，还不能修改回滚段。这可如何是好
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alter_xxx.log

ORA-01555: snapshot too old: rollback segment number 10 with name "_SYSSMU10_3550978943$" too small
Error 704 happened during db open, shutting down database
USER (ospid: 16935): terminating the instance due to error 704
Instance terminated by USER, pid = 16935
ORA-1092 signalled during: ALTER DATABASE OPEN...
opiodr aborting process unknown ospid (16935) as a result of ORA-1092
Mon Jan 26 03:03:53 2015
ORA-1092 : opitsk aborting process
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