sqlserver master恢复

----故障1：master有备份

1.backup database for master

backup database master to disk='e:\master.bkf' with format
go

2.stop mssqlserver service

net stop mssqlserver

3.start sqlserver with single user mode

C:\>cd C:\Program Files\Microsoft sql Server\MSsql.1\MSsql\Binn

C:\Program Files\Microsoft sql Server\MSsql.1\MSsql\Binn\sqlservr -c -f -m

4.restore master database from backup files

C:\Documents and Settings\Administrator>sqlcmd
1> restore database master from disk='e:\master.bkf'
2> go
已为数据库 'master'，文件 'master' (位于文件 1 上)处理了 376 页。
已为数据库 'master'，文件 'mastlog' (位于文件 1 上)处理了 3 页。
已成功地还原了 master 数据库。正在关闭 sql Server。
sql Server 正在终止此进程。

5.start the sqlserver in normal

C:\Documents and Settings\Administrator>net start mssqlserver
sql Server (MSsqlSERVER) 服务正在启动 ..
sql Server (MSsqlSERVER) 服务已经启动成功。

---故障2：master只是数据库文件名或路劲不对

1.停止mssqlserver服务

net stop mssqlserver

2.修改master的mdf名字

cd C:\Program Files\Microsoft sql Server\MSsql.1\MSsql\Data

ren master.mdf master01.mdf

3.net start mssqlserver

4.查看error文件
C:\Program Files\Microsoft sql Server\MSsql.1\MSsql\LOG：

2010-02-08 12:02:00.88 Server      Error: 17113,Severity: 16,State: 1.
2010-02-08 12:02:00.88 Server      Error 2(系统找不到指定的文件。) occurred while opening file 'C:\Program Files\Microsoft sql Server\MSsql.1\MSsql\DATA\master.mdf' to obtain configuration @R_156_4045@ion at startup. An invalid startup option might have caused the error. Verify your startup options,and correct or remove them if necessary.

5.按照errorlog提示修改文件名

ren  master01.mdf  master.mdf

6.启动

net start mssqlserver

 

---故障3：master没有备份

 

start /wait d:\setup.exe /qn instancename=mssqlserver reinstall=sql_engine rebuilddatabase=1 sapwd=sa sqlbrowserpassword=chinese_prc_bin