Weblogic12c安装到步骤：Prerequisite Checks 时，会进行操作系统版本的校验，即checking operating system certification。
此处操作系统版本会校验不过去，如下图：
解决方案：
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 4 (Taroon)
EOF
安装完毕，执行如下操作:
su root
cp /etc/redhat-release.backup /etc/redhat-release