After successfully installing Grid Infrastructure with the “grid” user, I attempted to install Oracle Database 19c Release 3 using the “oracle” user. However, during the installation process, I encountered an issue where none of my ASM (Automatic Storage Management) disks were visible in the disk group selection menu.
Log in as root user
cd /dev/oracleasm/
ls -ltrt
chown -R grid:oinstall oracleasm
cd /dev/oracleasm/disks
Login as grid user
cd $ORACLE_HOME/bin
ls -ltrh
chmod 6571 oracle
ls -ltrh oracle
Login as oracle user
cd $ORACLE_HOME/bin
ls -ltrh oracle
To ensure consistency in directory permissions between the “grid” and “oracle” users, execute the following command:
chmod 6571 oracle
No rerun the runInstaller.sh file , it will show the disk group.
Hope it helped !! 🙂