用emctl启动Oracle控制台报错ERROR: NMO not setuid-root (Unix-only)


		用emctl启动Oracle控制台报错ERROR: NMO not setuid-root (Unix-only)
 
一台服务器上运行多个数据库,EM无法正常使用,通过emca重建EM.命令如下: 
 
emca -config all db -repos recreate 
 
启动EM 
 
emctl start dbconsole 
 
说明: 
 
上面的命令会启动agent和dbconsole,同先运行emctl start agent再运行emctl start dbconsole的结果相同. emctl stop agent和emctl stop dbconsole都会停止agent和dbcosole. 
 
用EM进行backup,提示如下错误: 
 
Validation Error 
 
Examine and correct the following errors, then retry the operation: 
 
Error- Connection to host as user oracle failed: ERROR: NMO not setuid-root (Unix-only) 
 
解决方法: 
 
重新执行$ORACLE_HOME/root.sh,问题得到解决. 
 
因数据库安装过程中已执行root.sh,怀疑是重建EM后需要重新执行root.sh,经测试不是,没有找出引起问题的原因. 
 
ERROR: NMO not setuid-root (Unix-only)错误的解决方法 
 
1、Was the root.sh script. ran? 
 
       1)、停止EM 
 
       2)、运行root.sh 
 
       3)、启动EM 
 
2、Check the permission of the nmo and nmb executable found in $ORACLE_HOME/bin or $AGENT_OH/bin. Both should have the following permissions 
 
ls -al nmo 
 
ls -al nmb 
 
-rwsr-s--- 1 root oinstall 19656 Jan 9 14:28 nmo 
 
-rwsr-s--- 1 root oinstall 18462 Jan 9 14:28 nmb 
 
If not, change the permissions to match the above.