在RHEL6系列中，如果還按照5時的安裝方法，預設安裝出來後是沒有圖形化介面的。需要補裝方法如下：

1.掛裝光碟

[[email protected] ~]# mount /dev/cdrom /media/

2.修改/etc/yum.repos.d/rhel-source.repo 構建本地光碟yum庫
修改前：
[[email protected] ~]# vi /etc/yum.repos.d/rhel-source.repo
[rhel-source]
name=Red Hat Enterprise Linux $releasever - $basearch - Source
baseurl=ftp://ftp.redhat.com/pub/redhat/linux/enterprise/$releasever/en/os/SRPMS/
enabled=0
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release
[rhel-source-beta]
name=Red Hat Enterprise Linux $releasever Beta - $basearch - Source
baseurl=ftp://ftp.redhat.com/pub/redhat/linux/beta/$releasever/en/os/SRPMS/
enabled=0
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-beta,file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release
修改後：
[

[email protected] ~]# vi /etc/yum.repos.d/rhel-source.repo
[rhel-source]
name=Red Hat Enterprise Linux $releasever - $basearch - Source
baseurl=file:///media/Server
enabled=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release
[rhel-source-beta]
name=Red Hat Enterprise Linux $releasever Beta - $basearch - Source
baseurl=file:///media/Server
enabled=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-beta,file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release

3.用yum安裝
[[email protected] ~]# yum -y groupinstall "X Window System"

[[email protected] ~]# yum -y groupinstall Desktop

4.重啟後可以使用startx啟動圖行化介面了

備註：

步驟1掛載光碟時，報錯提示：mount: you must specify the filesystem type，使用VMware安裝虛擬機器，在虛擬機器設定，光碟機設定已連線，並選擇對應的ISO系統映象即可；