Installing ORACLE 11g R2 on Linux 6.2 Checking memory # grep MemTotal /proc/meminfo # grep SwapTotal /proc/meminfo # df -h /dev/shm/ # mount -t tmpfs tmpfs -o size=10000m /dev/shm # df -h /dev/shm/ Install All Packages Needed. Add entry in host file. #vi /etc/hosts Make entry like this: [IP] [HOST_NAME] Open /etc/sysctl.conf and add the following lines: # Oracle settings fs.aio-max-nr = 1048576 fs.file-max = 6815744 kernel.shmall = 2097152 kernel.shmmni = 4096 kernel.sem = 250 32000 100 128 net.ipv4.ip_local_port_range = 9000 65500 net.core.rmem_default = 262144 net.core.rmem_max = 4194304 net.core.wmem_default = 262144 net.core.wmem_max = 1048586 net.ipv4.tcp_wmem = 262144 262144 262144 net.ipv4.tcp_rmem = 4194304 4194304 4194304 Refresh settings # /sbin/sysctl -p # /sbin/sysctl -q Open /etc/security/limits.conf and add these lines. oracle soft nproc 2047 oracle hard npr