master出现BYPASS RECOVERY mode，怎么解决？

Question

1> select status, name from sysdatabases
2> go
status name

---

-32768 master
8204 model
8204 tempdb
0 sybsystemdb
8 sybsystemprocs
12 sybmgmtdb
-32768 foxhis

不知道怎么改回来