1、./runInstaller报错
>>> 忽略未通过的必需先决条件。继续...
准备从以下地址启动 Oracle Universal Installer /tmp/OraInstall2011-02-25_03-29-59AM. 请稍候...-bash-3.2$ Exception in thread "main" java.lang.NoClassDefFoundError
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:164)
at java.awt.Toolkit$2.run(Toolkit.java:821)
at java.security.AccessController.doPrivileged(Native Method)
at java.awt.Toolkit.getDefaultToolkit(Toolkit.java:804)
at com.jgoodies.looks.LookUtils.isLowResolution(Unknown Source)
at com.jgoodies.looks.LookUtils.<clinit>(Unknown Source)
at com.jgoodies.looks.plastic.PlasticLookAndFeel.<clinit>(PlasticLookAndFeel.java:122)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:242)
at javax.swing.SwingUtilities.loadSystemClass(SwingUtilities.java:1783)
at javax.swing.UIManager.setLookAndFeel(UIManager.java:480)
at oracle.install.commons.util.Application.startup(Application.java:758)
at oracle.install.commons.flow.FlowApplication.startup(FlowApplication.java:164)
at oracle.install.commons.flow.FlowApplication.startup(FlowApplication.java:181)
at oracle.install.commons.base.driver.common.Installer.startup(Installer.java:265)
at oracle.install.ivw.db.driver.DBInstaller.startup(DBInstaller.java:114)
at oracle.install.ivw.db.driver.DBInstaller.main(DBInstaller.java:132)
直接用oracle用户登陆，不能用root或者其他用户登陆后切换到oracle。
2、Oracle安装界面乱码
export NLS_LANG=AMERICAN_AMERICA.UTF8
export LC_ALL=C
3、[INS-35172] Target database memory (256MB)exceeds the systems available shared memory ({244}MB).
You are trying to use the MEMORY_TARGET feature. This feature requires the/dev/shm filesystem to be mounted for at Least <size> bytes.The/dev/shm is either notmounted or is mounted With available space lessthan this size.
# df -h /dev/shm
Filesystem Size Used Avail Use% Mounted on
tmpfs 244M 0 636M 0% /dev/shm
这个文件的大小才是真正控制我们 AMM 的大小关键。修改tmpfs 的大小，使其大于MEMORY_TARGET的大小就可以了。
修改文件 /etc/fstab 将tmpfs 修改成以下值：
tmpfs /dev/shm tmpfs defaults,size=300m 0 0
直接修改/etc/fstab，通过重启OS 让参数生效。注意：这个size 的大小需要设置为整数。