[root@oel ora12c]# uname -a
Linux oel 2.6.39-300.26.1.el5uek #1 SMP Thu Jan 3 18:31:38 PST 2013 x86_64 x86_64 x86_64 GNU/Linux
[root@oel ora12c]# cat /etc/oracle-release
Oracle Linux Server release 5.9
#因为该机器上有个oracle10g的库，建在oracle用户下了，所以新建ora12c用户，以不影响原用户。
mkdir -p /u02/ora12c
useradd -g oinstall -G dba -d /u02/ora12c -m ora12c
chown -R ora12c:oinstall /u02 cp /etc/skel/.bash_profile /u02/ora12c
cp /etc/skel/.bashrc /u02/ora12c
cp /etc/skel/.bash_logout /u02/ora12c
#下面的yum指令会自动安装12c所需的所有rpm包，第一行注释的是rh6下的语句
# yum install oracle-rdbms-server-12cR1-preinstall
yum install oracle-validated
yum -y install uptrack
#解压zip文件
[ora12c@oel zip]$ ll
total 2421884
drwxr-xr-x 7 ora12c oinstall 4096 Jun 10 20:14 database
-rw-r--r-- 1 ora12c oinstall 1361028723 Jul 1 11:04 linuxamd64_12c_database_1of2.zip
-rw-r--r-- 1 ora12c oinstall 1116527103 Jul 1 11:03 linuxamd64_12c_database_2of2.zip
#启动安装程序
[root@oel ~]# su - ora12c
[ora12c@oel ~]$ pwd
/u02/ora12c
[ora12c@oel ~]$ ll
total 0
[ora12c@oel ~]$ cd ../zip/database/
[ora12c@oel database]$ ll
total 60
drwxr-xr-x 4 ora12c oinstall 4096 Jul 1 14:00 install
drwxrwxr-x 2 ora12c oinstall 4096 May 25 04:43 response
drwxr-xr-x 2 ora12c oinstall 4096 May 25 03:29 rpm
-rwxr-xr-x 1 ora12c oinstall 7808 May 25 03:29 runInstaller
drwxrwxr-x 2 ora12c oinstall 4096 May 25 04:43 sshsetup
drwxr-xr-x 14 ora12c oinstall 4096 May 25 04:43 stage
-r-xr-xr-x 1 ora12c oinstall 500 Jun 10 13:52 welcome.html
[ora12c@oel database]$ ./runInstaller
安装界面没什么不同，如下：
打完收工，话说优化器改动不小~