Configurations required for installing oracle in linux

1. Check System package installationRpm-qa | grep binutilsrpm-ivh sysstat-7.0.2.rpmbinutils-2.17.50.0.6compat-libstdc ++-33-3.2.3compat-libstdc ++-33-3.2.3 (32 bit) elfutils-libelf-0.125elfutils-libelf-devel-0.125gcc-4.1.2gcc-c + +-4.1.2glibc-2.5-24glibc-2.5-24 (32 bit) glibc-common-2.5glibc-devel-2.5glibc-devel-2.5 (32 bit) libaio-0.3.106libaio-0.3.106 (32 bit) libaio-devel-0.3.106libaio-devel-0.3.106 (32 bit) libgcc-4.1.2libgcc-4.1.2 (32 bit) libstdc ++-4.1.2libstdc ++-4.1.2 (32 bit) libstdc ++-devel 4.1.2make-3.81sysstat-7.0.2unixODBC-2.2.11 (32-bit) or laterunixODBC-devel-2.2.11 (64-bit) or laterunixODBC-2.2.11 (64-bit) or laterlibXplibXp-devel2. Modify Network ConfigurationVi/etc/sysconfig/network-scripts/ifcfg-eth0 ---------------------------- DEVICE = eth0BOOTPROTO = noneHWADDR = 00: 0c: 29: d4: f5: b4ONBOOT = yesTYPE = EthernetUSERCTL = yesIPV6INIT = noPEERDNS = yesNETMASK = 255.255.255.0IPADDR = 192.168.91.100GATEWAY = 192.168.91.1 255.vi/etc/hosts 255.127.0.0.1 localhost. localdomain localhost192.168.91.100 RHL5 -----------------------------3. Add oracle usersGroupadd oinstallgroupadd dbauseradd-g oinstall-G dba oraclepasswd oracle4. Add initialization parametersVi/etc/sysctl. confsysctl-p ----------------------------- fs. aio-max-nr = 1048576fs. file-max = 6815744 # kernel. shmall = 2097152 # kernel. shmmax = 536670912kernel. shmmni = 4096kernel. sem = 250 32000 100. net. ipv4.ip _ local_port_range = 9000 65500net. core. rmem_default = 262144net. core. rmem_max = 4192134net. core. wmem_default = 262144net. core. wmem_max = 1048576 -----------------------------5Disable force access control to avoid routing access failure.Vi/etc/selinux/config ----------------------- SELINUX = disabled -----------------------6. Set the number of oracle software and hardware ProcessesVi/etc/security/limits. conf --------------------- oracle soft nproc 2047 oracle hard nproc 16384 oracle soft nofile 1024 oracle hard nofile 65536 -----------------------7. Global process, thread ConfigurationVi/etc/profile -------------------- if [$ USER = 'oracle ']; then ulimit-u 16384 ulimit-n 65536fi ----------------------8. Create an oracle root directory and Set Directory PermissionsMkdir/u01/app/oracle-pchown-R oracle: oinstall/u01chmod-R 755/u019. Set oracle user environment variablesSu-oraclevi. bash_profile export ORACLE_BASE =/u01/app/oracleexport ORACLE_HOME =/u01/app/oracle/product/11.2/db_1export ORACLE_SID = oracle11gexport NLS_LANG = export LD_LIBRARY_PATH = $ LD_LIBRARY_PATH: $ ORACLE_HOME/libexport PATH = $ PATH: $ ORACLE_HOME/bin:/usr/sbin:/usr/local/bin: /usr/X11R6/binumask 022 ---------------------- make it take effect .. /. bash_profile check whether echo $ ORACLE_HOME is set successfully