1). 运行runInstaller -ignoreSysPrereqs，这样会跳过检查.
2). 摘自 www.puschitz.com 修改/etc/redhat-release文件：
#su - root
#cp /etc/redhat-release /etc/redhat-release.backup
#cat > /etc/redhat-release << EOF
Red Hat Enterprise Linux AS release 3 (Taroon)
EOF
安装完毕，执行如下操作：
#su - root
#cp /etc/redhat-release.backup /etc/redha
