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| 清除ocr and voting使用过的raw device (bs的单位是字节)
dd if=/dev/zero of=/dev/raw/raw1 bs=104857600 count=1
dd if=/dev/zero of=/dev/raw/raw2 bs=104857600 count=1
清除disk group使用的partition
dd if=/dev/zero of=/dev/sdb1 bs=1024k count=200
dd if=/dev/zero of=/dev/sdc1 bs=1024k count=200
dd if=/dev/zero of=/dev/sdd1 bs=1024k count=200
rm -rf -rf /home/oracle/oracle/*
rm -rf /etc/rc.d/rc5.d/S96init.crs
rm -rf /etc/rc.d/init.d/init.crs
rm -rf /etc/rc.d/rc4.d/K96init.crs
rm -rf /etc/rc.d/rc6.d/K96init.crs
rm -rf /etc/rc.d/rc1.d/K96init.crs
rm -rf /etc/rc.d/rc0.d/K96init.crs
rm -rf /etc/rc.d/rc2.d/K96init.crs
rm -rf /etc/rc.d/rc3.d/S96init.crs
rm -rf /etc/oracle/*
rm -rf /etc/oraInst.loc
rm -rf /etc/oratab
rm -rf /usr/local/bin/coraenv
rm -rf /usr/local/bin/dbhome
rm -rf /usr/local/bin/oraenv
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 -f /etc/inittab.crs
mv /etc/inittab /etc/inittab_bak
cp /etc/inittab.orig /etc/inittab
cd /opt/oracrs
rm -rf ./*
cd /opt/oracle
rm -rf ./*
rm -rf /etc/ora*
--crs是crs的主目录，crs安装完以后，
其owner被改成了root，重装的时候需要改成oracle
chown oracle.oinstall /crs
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