如果yum安装较慢建议切换阿里yum源
yum源切换
先安装wget命令 yum install wget -y #wget命令就是在线下载一个url的静态资源 再执行 wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo注：切换之前建议先备份 /etc/yum.repos.d 中的文件
yum install compat-libstdc++-33 -y yum install elfutils-libelf-devel -y yum install gcc-c++ -y yum install glibc-* -y yum install ksh -y yum install libaio -y yum install libaio-devel -y yum install libstdc++-devel -y yum install unixODBC -y yum install unixODBC-devel -y具体参数参考如下：
fs.aio-max-nr = 1048576 fs.file-max = 6815744 kernel.shmall = 2097152 kernel.shmmax = 536870912 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 = 1048576 关闭selinux vim /etc/selinux/config 设置SELINUX=disabled 关闭防火墙 systemctl stop firewalld添加以下设置：
oracle soft nproc 2047 oracle hard nproc 16384 oracle soft nofile 1024 oracle hard nofile 65536 oracle soft stack 10240修改/etc/pam.d/login文件
vim /etc/pam.d/login添加以下内容
session required /lib64/security/pam_limits.so session required pam_limits.so修改/etc/profile文件
vim /etc/profile添加以下配置
if [ $USER = "oracle" ]; then if [ $SHELL = "/bin/ksh" ]; then ulimit -p 16384 ulimit -n 65536 else ulimit -u 16384 -n 65536 fi fi使profile文件生效
source /etc/profileoracle11g数据库下载地址
mkdir -p /u01/app/ chown -R oracle:oinstall /home/oracle chmod -R 775 /home/oracle chown -R oracle:oinstall /u01/app/ chmod -R 775 /u01/app/添加/etc/oraInst.loc文件并授权
vim /etc/oraInst.loc inventory_loc=/u01/app/oracle/oraInventory inst_group=oinstall chown oracle:oinstall /etc/oraInst.loc chmod 664 /etc/oraInst.loc设置如下：
vim ~/.bash_profile export ORACLE_BASE=/u01/app/oracle export ORACLE_SID=orcl使其生效
source /home/oracle/.bash_profile配置如下：
oracle.install.option=INSTALL_DB_SWONLY ORACLE_HOSTNAME=主机名 UNIX_GROUP_NAME=oinstall INVENTORY_LOCATION=/u01/app/oracle/oraInventory SELECTED_LANGUAGES=en,zh_CN,zh_TW ORACLE_HOME=/u01/app/oracle/product/11.2.0/db_1 ORACLE_BASE=/u01/app/oracle oracle.install.db.InstallEdition=EE oracle.install.db.isCustomInstall=false oracle.install.db.DBA_GROUP=dba oracle.install.db.OPER_GROUP=oinstall #这里必须填ture DECLINE_SECURITY_UPDATES=true此处会卡住，安装完成会出现以下情况则安装成功，若未出现可查看日志文件
添加配置如下：
export ORACLE_HOME=$ORACLE_BASE/product/11.2.0/db_1 export TNS_ADMIN=$ORACLE_HOME/network/admin export PATH=.:${PATH}:$HOME/bin:$ORACLE_HOME/bin export PATH=${PATH}:/usr/bin:/bin:/usr/bin/X11:/usr/local/bin export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:$ORACLE_HOME/lib export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:$ORACLE_HOME/oracm/lib export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/lib:/usr/lib:/usr/local/lib export CLASSPATH=${CLASSPATH}:$ORACLE_HOME/JRE export CLASSPATH=${CLASSPATH}:$ORACLE_HOME/JRE/lib export CLASSPATH=${CLASSPATH}:$ORACLE_HOME/jlib export CLASSPATH=${CLASSPATH}:$ORACLE_HOME/rdbms/jlib export CLASSPATH=${CLASSPATH}:$ORACLE_HOME/network/jlib export LIBPATH=${CLASSPATH}:$ORACLE_HOME/lib:$ORACLE_HOME/ctx/lib export ORACLE_OWNER=oracle export SPFILE_PATH=$ORACLE_HOME/dbs export ORA_NLS10=$ORACLE_HOME/nls/data使.bash_profile文件生效
source ~/.bash_profile配置如下：
GDBNAME = "orcl" SID = "orcl" SYSPASSWORD = "oracle" SYSTEMPASSWORD = "oracle" SYSMANPASSWORD = "oracle" DBSNMPPASSWORD = "oracle" DATAFILEDESTINATION =/u01/app/oracle/oradata RECOVERYAREADESTINATION=/u01/app/oracle/fast_recovery_area CHARACTERSET = "ZHS16GBK" TOTALMEMORY = "1638" 其中TOTALMEMORY = "1638" 为1638MB，物理内存2G*80%。```出现以下文字则安装成功 实例进程检查
ps -ef | grep ora_ | grep -v grep监听配置成功后如下： 查看监听状态
netstat -tnulp | grep 1521如果出现以下情况 切换到root用户执行以下操作即可
chmod +s /bin/netstat命令行安装
./runInstaller -silent -ignorePrereq -debug -force \ FROM_LOCATION=/data/database/stage/products.xml \ oracle.install.option=INSTALL_DB_SWONLY \ UNIX_GROUP_NAME=oinstall \ NVENTORY_LOCATION=/u01/app/oracle/oraInventory \ ORACLE_HOME=/u01/app/oracle/product/11.2.0/db_1 \ ORACLE_BASE=/u01/app/oracle oracle.install.db.InstallEdition=EE \ oracle.install.db.isCustomInstall=false \ oracle.install.db.DBA_GROUP=dba \ oracle.install.db.OPER_GROUP=oinstall \ oracle.install.db.config.starterdb.characterSet=ZHS16GBK \ oracle.install.db.config.starterdb.memoryLimit=512 \ oracle.install.db.config.starterdb.password.ALL=password \ DECLINE_SECURITY_UPDATES=true以上就是linux下静默安装oracle11g 11.2.0 的全部过程，欢迎参考！！！
