今天在安装crs的时候出错了，于是将crs删除，重新来安装一次，下面给出删除crs的方法:
一般情况下，只需要以root用户在各节点上依次运行目录$ORA_CRS_HOME/install/下的脚本rootdelete.sh和rootdeinstall.sh 即可。
即：
# cd $ORA_CRS_HOME/install
(大家可能这一步出错，是由于环境变量$ORA_CRS_HOME一般是设置在oracle用户的.bash_profile文件中，这里也可以直接敲全路径，对应我今天的全路径为 /u010g/app/oracle/product/10.2.0/crs_1/install)
[root@bbk06 ~]# cd /u010g/app/oracle/product/10.2.0/crs_1/install
[root@bbk06 install]# ./rootdelete.sh
[root@bbk06 install]# ./rootdeinstall.sh
然后用命令手工将所有节点上没有删除的文件删除掉，
[root@bbk06 install]# cd /u010g/app/oracle/
[root@bbk06 oracle]# ls -l
total 12
drwxrwxr-x 2 ora10g oinstall 4096 May 17 17:48 oradata
drwxrwx--- 6 ora10g oinstall 4096 May 30 19:41 oraInventory
drwxrwxr-x 3 ora10g oinstall 4096 May 29 17:47 product
[root@bbk06 oracle]# rm -rf oraInventory/
[root@bbk06 oracle]# cd product/10.2.0/
[root@bbk06 10.2.0]# ls -l
total 8
drwxr-xr-x 17 ora10g oinstall 4096 May 30 18:46 crs_1
drwxrwxr-x 2 ora10g oinstall 4096 May 27 11:57 db_1
[root@bbk06 10.2.0]# rm -rf crs_1/
最后，重新启动所有的节点机。完成删除crs。
下面是metalink上给的方法
Subject: 10g RAC: How to Clean Up After a Failed CRS Install
Doc ID: Note:239998.1 Type: BULLETIN
Last Revision Date: 01-JUN-2007 Status: PUBLISHED
PURPOSE
-------
The purpose of this document is to help DBA's and support analysts understand how
to clean up a failed CRS (Cluster Ready Services) install for 10g RAC.
SCOPE & APPLICATION
-------------------
DBA's and Support Analysts
10g RAC: How to Clean Up After a Failed CRS Install
---------------------------------------------------
Not cleaning up a failed CRS install can cause problems like node reboots.
Follow these steps to clean up a failed CRS install:
1. Run the rootdelete.sh script then the rootdeinstall.sh script from the
$ORA_CRS_HOME/install directory on any nodes you are removing CRS from. Running
these scripts should be sufficent to clean up your CRS install. If you have
any problems with these scripts please open a service request.
If for some reason you have to manually remove the install due to problems
with the scripts, continue to step 2:
2. Stop the Nodeapps on all nodes:
srvctl stop nodeapps -n
3. Prevent CRS from starting when the node boots. To do this issue the following
as root:
Sun:
rm /etc/init.d/init.cssd
rm /etc/init.d/init.crs
rm /etc/init.d/init.crsd
rm /etc/init.d/init.evmd
rm /etc/rc3.d/K96init.crs
rm /etc/rc3.d/S96init.crs
rm -Rf /var/opt/oracle/scls_scr
rm -Rf /var/opt/oracle/oprocd
rm /etc/inittab.crs
cp /etc/inittab.orig /etc/inittab
Linux:
rm /etc/oracle/*
rm -f /etc/init.d/init.cssd
rm -f /etc/init.d/init.crs
rm -f /etc/init.d/init.crsd
rm -f /etc/init.d/init.evmd
rm -f /etc/rc2.d/K96init.crs
rm -f /etc/rc2.d/S96init.crs
rm -f /etc/rc3.d/K96init.crs
rm -f /etc/rc3.d/S96init.crs
rm -f /etc/rc5.d/K96init.crs
rm -f /etc/rc5.d/S96init.crs
rm -Rf /etc/oracle/scls_scr
rm -f /etc/inittab.crs
cp /etc/inittab.orig /etc/inittab
HP-UX:
rm /sbin/init.d/init.cssd
rm /sbin/init.d/init.crs
rm /sbin/init.d/init.crsd
rm /sbin/init.d/init.evmd
rm /sbin/rc2.d/K960init.crs
rm /sbin/rc2.d/K001init.crs
rm /sbin/rc3.d/K960init.crs
rm /sbin/rc3.d/S960init.crs
rm -Rf /var/opt/oracle/scls_scr
rm -Rf /var/opt/oracle/oprocd
rm /etc/inittab.crs
cp /etc/inittab.orig /etc/inittab
HP Tru64:
rm /sbin/init.d/init.cssd
rm /sbin/init.d/init.crs
rm /sbin/init.d/init.crsd
rm /sbin/init.d/init.evmd
rm /sbin/rc3.d/K96init.crs
rm /sbin/rc3.d/S96init.crs
rm -Rf /var/opt/oracle/scls_scr
rm -Rf /var/opt/oracle/oprocd
rm /etc/inittab.crs
cp /etc/inittab.orig /etc/inittab
IBM AIX:
rm /etc/init.cssd
rm /etc/init.crs
rm /etc/init.crsd
rm /etc/init.evmd
rm /etc/rc.d/rc2.d/K96init.crs
rm /etc/rc.d/rc2.d/S96init.crs
rm -Rf /etc/oracle/scls_scr
rm -Rf /etc/oracle/oprocd
rm /etc/inittab.crs
cp /etc/inittab.orig /etc/inittab
4. If they are not already down, kill off EVM, CRS, and CSS processes or reboot
the node:
ps -ef | grep crs
kill
ps -ef | grep evm
kill
ps -ef | grep css
kill
Do not kill any OS processes, for example icssvr_daemon process !
5. If there is no other Oracle software running (like listeners, DB's, etc...),
you can remove the files in /var/tmp/.oracle or /tmp/.oracle. Example:
rm -f /var/tmp/.oracle
or
rm -f /tmp/.oracle
6. Remove the ocr.loc
Usually the ocr.loc can be found at /etc/oracle
7. De-install the CRS home in the Oracle Universal Installer
8. Remove the CRS install location:
rm -Rf /*
9. Clean out the OCR and Voting Files with dd commands. Example:
dd if=/dev/zero of=/dev/rdsk/V1064_vote_01_20m.dbf bs=8192 count=2560
dd if=/dev/zero of=/dev/rdsk/ocrV1064_100m.ora bs=8192 count=12800
If you placed the OCR and voting disk on a shared filesystem, remove them.
If you are removing the RDBMS installation, also clean out any ASM disks if
they have already been used.
10.If you would like to re-install CRS, follow the steps in the RAC Installation manual.
也可以采用如下步骤手工删除：
下面是再网上找到的手工删除方法，我没有去验证。下次又机会自己去验证一把。
1、在所有节点停止nodeapps
srvctl stop nodeapps -n nodename
2、删除crs自动启动程序
Sun:
rm /etc/init.d/init.cssd
rm /etc/init.d/init.crs
rm /etc/init.d/init.crsd
rm /etc/init.d/init.evmd
rm /etc/rc3.d/K96init.crs
rm /etc/rc3.d/S96init.crs
rm -Rf /var/opt/oracle/scls_scr
rm -Rf /var/opt/oracle/oprocd
rm /etc/inittab.crs
cp /etc/inittab.orig /etc/inittab
Linux:
rm /etc/oracle/*
rm -f /etc/init.d/init.cssd
rm -f /etc/init.d/init.crs
rm -f /etc/init.d/init.crsd
rm -f /etc/init.d/init.evmd
rm -f /etc/rc2.d/K96init.crs
rm -f /etc/rc2.d/S96init.crs
rm -f /etc/rc3.d/K96init.crs
rm -f /etc/rc3.d/S96init.crs
rm -f /etc/rc5.d/K96init.crs
rm -f /etc/rc5.d/S96init.crs
rm -Rf /etc/oracle/scls_scr
rm -f /etc/inittab.crs
cp /etc/inittab.orig /etc/inittab
HP-UX:
rm /sbin/init.d/init.cssd
rm /sbin/init.d/init.crs
rm /sbin/init.d/init.crsd
rm /sbin/init.d/init.evmd
rm /sbin/rc2.d/K960init.crs
rm /sbin/rc2.d/K001init.crs
rm /sbin/rc3.d/K960init.crs
rm /sbin/rc3.d/S960init.crs
rm -Rf /var/opt/oracle/scls_scr
rm -Rf /var/opt/oracle/oprocd
rm /etc/inittab.crs
cp /etc/inittab.orig /etc/inittab
HP Tru64:
rm /sbin/init.d/init.cssd
rm /sbin/init.d/init.crs
rm /sbin/init.d/init.crsd
rm /sbin/init.d/init.evmd
rm /sbin/rc3.d/K96init.crs
rm /sbin/rc3.d/S96init.crs
rm -Rf /var/opt/oracle/scls_scr
rm -Rf /var/opt/oracle/oprocd
rm /etc/inittab.crs
cp /etc/inittab.orig /etc/inittab
IBM AIX:
rm /etc/init.cssd
rm /etc/init.crs
rm /etc/init.crsd
rm /etc/init.evmd
rm /etc/rc.d/rc2.d/K96init.crs
rm /etc/rc.d/rc2.d/S96init.crs
rm -Rf /etc/oracle/scls_scr
rm -Rf /etc/oracle/oprocd
rm /etc/inittab.crs
cp /etc/inittab.orig /etc/inittab
3、kill css/crs/evm进程，并reboot节点
ps -ef | grep css/crs/evm
kill -9 processid
4、删除/tmp/.oracle或/var/tmp/.oracle
rm -f /tmp/.oracle 或rm -f /var/tmp/.oracle
5、删除ocr.loc
rm -f /etc/oracle/orc.loc
6、用oracle universal installer卸载crs
7、删除crs安装目录
rm -Rf crs_install_dir
8、使用dd清除vote disk和ocr(裸设备)
dd if=/dev/zero f=/dev/votedisk_device bs=8192 count=2560
dd if=/dev/zero f=/dev/ocr_device bs=8192 count=12800
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