centos7安装oracle11过程

centos7下oracle11g详细的安装一、oracle的安装，在官网下载oracle11gR21、进入终端输入命令：su输入ROOT密码：创建用户组oinstall：groupaddoinstall创建用户组dba：groupadddba创建oracle用户，并加入到oinstall和dba用户组：useradd-goinstall-gdba-moracle设置用户oracle登录密码，需要确认一次，注意两次密码要一样(注意：此处的密码是oracle账户登录密码)：passwdoracle查看新建的oracle用户：idoracle[root@localhost~]#groupaddoinstall[root@localhost~]#groupadddba[root@localhost~]#useradd-goinstall-gdba-moracle[root@localhost~]#passwdoracleChangingpasswordforuseroracle.Newpassword:BADPASSWORD:Thepasswordisshorterthan8charactersRetypenewpassword:passwd:allauthenticationtokensupdatedsuccessfully.[root@localhost~]#idoracleuid=1000(oracle)gid=1001(dba)groups=1001(dba)[root@localhost~]#查看空间大小[root@localhost~]#df-hFilesystemSizeUsedAvailUse%Mountedon/dev/mapper/centos-root21T3.2G21T1%/devtmpfs7.7G07.7G0%/devtmpfs7.7G16K7.7G1%/dev/shmtmpfs7.7G18M7.7G1%/runtmpfs7.7G07.7G0%/sys/fs/cgroup/dev/sda1194M112M83M58%/boottmpfs1.6G32K1.6G1%/run/user/02、创建oracle数据库安装目录oracle数据库安装目录：mkdir-p/data/oracleoracle数据库配置文件目录：mkdir-p/data/oraInventoryoracle数据库软件包解压目录：mkdir-p/data/database再输入：cd/data创建完毕检查一下：ls设置目录所有者为oinstall用户组的oracle用户：chown-Roracle:oinstall/data/oracle再输入：chown-Roracle:oinstall/data/oraInventory再输入：chown-Roracle:oinstall/data/database[root@localhost/]#mkdir-p/data/oracle[root@localhost/]#mkdir-p/data/oraInventory[root@localhost/]#mkdir-p/data/database[root@localhost/]#cddata[root@localhostdata]#lsdatabaseoracleoraInventory[root@localhostdata]#[root@localhostdata]#chown-Roracle:oinstall/data/oracle[root@localhostdata]#chown-Roracle:oinstall/data/oraInventory[root@localhostdata]#chown-Roracle:oinstall/data/database[root@localhostdata]#3、修改os系统标识因为oracle默认不支持Centos系统安装，需要修改为对应的RedHat版本。查看当前系统版本：cat/proc/version输入：vi/etc/redhat-release进入到编辑模式了，点击键盘上的“insert”按钮，再将第一行替换为redhat-7，按Esc按钮，输入:wq，注意这里有一个冒号，再回车，保存并退出(注意：后面所有修改文件的方法均如此，故不再赘述)。#CentOSLinuxrelease7.2.1511(Core)redhat-74、关闭防火墙关闭防火墙：systemctlstopfirewalld.service禁止使用防火墙：systemctldisablefirewalld.service[root@localhostdata]#systemctlstopfirewalld.service[root@localhostdata]#systemctldisablefirewalld.serviceRemovedsymlink/etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.Removedsymlink/etc/systemd/system/basic.target.wants/firewalld.service.5、关闭selinux进入编辑状态：vi/etc/selinux/config将SELINUX的值改为disabled，保存并退出。#ThisfilecontrolsthestateofSELinuxonthesystem.#SELINUX=cantakeoneofthesethreevalues:#enforcing-SELinuxsecuritypolicyisenforced.#permissive-SELinuxprintswarningsinsteadofenforcing.#disabled-NoSELinuxpolicyisloaded.#SELINUX=enforcingSELINUX=disabled#SELINUXTYPE=cantakeoneofthreetwovalues:#targeted-Targetedprocessesareprotected,#minimum-Modificationoftargetedpolicy.Onlyselectedprocessesareprotected.#mls-MultiLevelSecurityprotection.SELINUXTYPE=targeted6、修改内核参数进入编辑状态：vi/etc/sysctl.conf在最后添加如下代码：net.ipv4.icmp_echo_ignore_broadcasts=1net.ipv4.conf.all.rp_filter=1fs.file-max=6815744fs.aio-max-nr=1048576kernel.shmall=2097152kernel.shmmax=2147483648kernel.shmmni=4096kernel.sem=25032000100128net.ipv4.ip_local_port_range=900065500net.core.rmem_default=262144net.core.rmem_max=4194304net.core.wmem_default=262144net.core.wmem_max=1048576保存并退出。[root@localhostdata]#vi/etc/sysctl.conf#Systemdefaultsettingslivein/usr/lib/sysctl.d/00-system.conf.#Tooverridethosesettings,enternewsettingshere,orinan/etc/sysctl.d/name.conffile##Formoreinformation,seesysctl.conf(5)andsysctl.d(5).net.ipv4.icmp_echo_ignore_broadcasts=1net.ipv4.conf.all.rp_filter=1fs.file-max=6815744fs.aio-max-nr=1048576kernel.shmall=4294967295kernel.shmmax=2147483648kernel.shmmni=4096kernel.sem=25032000100128net.ipv4.ip_local_port_range=900065500net.core.rmem_default=262144net.core.rmem_max=4194304net.core.wmem_default=262144net.core.wmem_max=1048576使配置参数立即生效：sysctl-p[root@localhostdata]#sysctl-pnet.ipv4.icmp_echo_ignore_broadcasts=1net.ipv4.conf.all.rp_filter=1fs.file-max=6815744fs.aio-max-nr=1048576kernel.shmall=2097152kernel.shmmax=2147483648kernel.shmmni=4096kernel.sem=25032000100128net.ipv4.ip_local_port_range=900065500net.core.rmem_default=262144net.core.rmem_max=4194304net.core.wmem_default=262144net.core.wmem_max=10485767、对oracle用户设置限制，提高软件运行性能进入编辑状态：vi/etc/security/limits.conf找到最后一行#Endoffile，在它上面空行处添加如下代码：oraclesoftnproc2047oraclehardnproc16384oraclesoftnofile1024oraclehardnofile65536保存并退出。8、配置用户的环境变量进入编辑状态：vi/home/oracle/.bash_profile在最后添加如下代码：exportORACLE_BASE=/data/oracle#oracle数据库安装目录exportORACLE_HOME=$ORACLE_BASE/product/11.2.0/db_1exportORACLE_SID=orcl#oracle启动数据库实例名exportORACLE_TERM=xtermexportPATH=$ORACLE_HOME/bin:/usr/sbin:$PATHexportLD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/libexportLANG=CexportNLS_LANG=AMERICAN_AMERICA.ZHS16GBK保存并退出。使上述配置立即生效：source/home/oracle/.bash_profileSuoracleyum-yinstallxclockyum-yinstallxorg-x11-utilsxclockexportDISPLAY=172.16.0.123:0.0exportLANG=en_US.UTF-8#为了避免安装过程出现乱码，输入命令：exportLANG=en_US.UTF-811、开始安装启动oracle安装：./runInstaller1)进入安装界面，如下图所示，去掉“IwishreceivesecurityviaMyOracleSupport”的勾选，单击“next”，选“yes”继续。2)选中“Createandconfigureadatabase”，点击“next”。3)选中“ServerClass”，点击“next”。4)进入下图界面，在“Administr