1.下載地址
（需要注冊oracle賬號）點擊
2.登錄CentOS 做準(zhǔn)備工作
groupadd? oinstall
groupadd? dba
useradd-g oinstall -g dba -m oracle
passwdoracle
3.傳輸 壓縮包至Oracle home下的down
解壓并且修改所屬用戶所屬組
mkdir/home/oracle/app
mkdir/home/oracle/down
mkdir/home/oracle/app/oracle
mkdir/home/oracle/app/oradata
mkdir/home/oracle/app/oracle/product
unzip? linux.x64_12cR2_database_1of2.zip
unzip? linux.x64_12cR2_database_2of2.zip
chown-R oracle:oinstall/home/oracle
4. 修改系統(tǒng)配置文件
vi /etc/security/limits.conf
oracle? soft? ? nproc? ? 2047
oracle?? hard??? nproc??? 16384
oracle?? soft??? nofile???? 1024
oracle?? hard??? nofile??? 65536
vi? /etc/pam.d/login
session? required? ? /lib/security/pam_limits.so
session? required? ? pam_limits.so
vi? /etc/sysctl.conf
fs.file-max = 6815744
fs.aio-max-nr = 1048576
kernel.shmall = 2097152
kernel.shmmax = 2147483648
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
net.ipv4.ip_local_port_range = 9000 65500
net.core.rmem_default = 4194304
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048576
vi? /etc/profile
if [ $USER = "oracle" ]; then
if [ $SHELL = "/bin/ksh" ]; then
ulimit -p 16384
ulimit -n 65536
else
ulimit -u 16384 -n 65536
fi
fi
su - oracle
vi .bash_profile
umask 022
export ORACLE_BASE=/home/oracle/app
export ORACLE_HOME=$ORACLE_BASE/oracle/product/12.1.0/dbhome_1
export ORACLE_SID=orcl
export PATH=$PATH:$HOME/bin:$ORACLE_HOME/bin
export LD_LIBRARY_PATH=$ORACLE_HOME/lib:/usr/lib
5.安裝依賴包
yum -y update
yum -yinstallksh libaio-develgcc-c++ libstdc++-devel compat-libstdc++-33 compat-libcap1
