重新配置或卸载 11gR2 Grid Infrastructure

Oracle 11g R2 Grid Infrastructure 的安装与配置较之前的版本提供了更多的灵活性。在Grid Infrastructure安装完毕前执行root.sh经常容易出现错误，并且需要修复该错误才能得以继续。在这个版本中我们可以直接通过执行脚本rootcrs.pl来重新配置Grid Infrastr

Oracle 11g R2 Grid Infrastructure 的安装与配置较之前的版本提供了更多的灵活性。在Grid Infrastructure安装完毕前执行root.sh经常容易出现错误，并且需要修复该错误才能得以继续。在这个版本中我们可以直接通过执行脚本rootcrs.pl来重新配置Grid Infrastructure而无需先卸载Grid Infrastructure，然后修复故障后进行再次安装。下面描述了rootcrs.pl的用法以及使用deinstall彻底卸载Grid Infrastructure。

1、rootcrs.pl命令介绍

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1. #命令位置:$GRID_HOME/crs/install
2. #命令说明:
3. # 该命令主要是用于对crs进行维护与管理，包括patch,upgrade,downgrade,deconfig等等
4. # perldoc rootcrs.pl执行这个命令获得完整的介绍
5. [root@li本文来源gaodai#ma#com搞*!代#%^码网%nux1 install]# ./rootcrs.pl -h
6. Unknown option: h
7. Usage:
8. rootcrs.pl [-verbose] [-upgrade | -patch] [-hahome ]
9. [-paramfile ]
10. [-deconfig | -downgrade] [-force] [-lastnode]
11. [-downgrade] [-oldcrshome ] [-version ]
12. [-unlock [-crshome ]]
14. Options:
15. -verbose Run this script in verbose mode
16. -upgrade Oracle HA is being upgraded from previous version
17. -patch Oracle HA is being upgraded to a patch version
18. -hahome Complete path of Oracle Clusterware home
19. -paramfile Complete path of file specifying HA parameter values
20. -lastnode Force the node this is executing on to be considered the
21. last node of the install and perform actions associated
22. with configurig the last node
23. -downgrade Downgrade the clusterware
24. -version For use with downgrade; special handling is required if
25. downgrading to 9i. This is the old crs version in the format
26. A.B.C.D.E (e.g 11.1.0.6.0).
27. -deconfig Remove Oracle Clusterware to allow it to be uninstalled or reinstalled.
28. -force Force the executon of steps in delete that cannot be verified
29. to be safe
30. -unlock Unlock CRS home
31. -crshome Complete path of crs home. Use with unlock option.
32. -oldcrshome For use with downgrade. Complete path of the old crs home.
34. If neither -upgrade nor -patch is supplied, a new install is performed
36. To see the full manpage for this program, execute:
37. perldoc rootcrs.pl

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