11g Clusterware Upgrade

The upgrade process to 11gR1 is the same process as upgrading from 10.2.0.1 to 10.2.0.3. The steps for the upgrade process is:

Shutdown CRS

The following steps are optional:

* Modify /etc/inittab and comment out last three lines
* init q

$ORA_CRS_HOME/bin/crsctl stop crs

Execute pre-update script from the unzipped software/clusterware/upgrade directory
./preupdate.sh -crshome $ORA_CRS_HOME -crsuser oracrs

Install new software binaries on all the RAC nodes
./runInstaller

From $ORA_CRS_HOME/install directory
./rootupgrade

Check upgrade status by querying activeversion of the CRS
crsctl query crs activeversion

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