转自： http://blog.itpub.net/27771627/viewspace-1223155/
RHEL7 默认是最小化安装（Minimal Install），没有图形界面，
我们应该选择Server with GUI。若已错过此步骤，我们采用以下方式补充安装GUI界面。
先配置yum源
可以参考我的这篇文章
http://blog.itpub.net/27771627/viewspace-1223153/
[root@LiuZhen mnt]# rpm --import RPM-GPG-KEY-redhat-release
执行以下命令
[root@LiuZhen mnt]# yum group list
Loaded plugins: langpacks, product-id, subscription-manager
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
There is no installed groups file.
Maybe run: yum groups mark convert (see man yum)
Available environment groups:
Minimal Install
Infrastructure Server
File and Print Server
Basic Web Server
Virtualization Host
Server with GUI
Available Groups:
Compatibility Libraries
Console Internet Tools
Development Tools
Graphical Administration Tools
Legacy UNIX Compatibility
Scientific Support
Security Tools
Smart Card Support
System Administration Tools
System Management
Done
[root@LiuZhen mnt]#
列出的组包中 Server with GUI 就是安装图形所需要的，继续执行以下命令
[root@LiuZhen mnt]# yum -y groupinstall "Server with GUI"
Loaded plugins: langpacks, product-id, subscription-manager
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
There is no installed groups file.
Maybe run: yum groups mark convert (see man yum)
Package 1:NetworkManager-config-server-0.9.9.1-12.git20140326.4dba720.el7.x86_64 already installed and latest version
Warning: Group core does not have any packages to install.
Warning: Group gnome-desktop does not have any packages to install.
Warning: Group guest-agents does not have any packages to install.
Package gtk2-immodule-xim-2.24.22-5.el7.x86_64 already installed and latest version
Package imsettings-gsettings-1.6.3-9.el7.x86_64 already installed and latest version
Package ibus-gtk3-1.5.3-11.el7.x86_64 already installed and latest version
Package ibus-gtk2-1.5.3-11.el7.x86_64 already installed and latest version
Package gtk3-immodule-xim-3.8.8-5.el7.x86_64 already installed and latest version
Warning: Group input-methods does not have any packages to install.
Group input-methods does have 2 conditional packages, which may get installed.
Warning: Group guest-desktop-agents does not have any packages to install.
Warning: Group fonts does not have any packages to install.
Warning: Group print-client does not have any packages to install.
Warning: Group desktop-debugging does not have any packages to install.
Warning: Group dial-up does not have any packages to install.
Warning: Group base does not have any packages to install.
Group base does have 1 conditional packages, which may get installed.
Package gstreamer1-plugins-bad-free-1.0.7-4.el7.x86_64 already installed and latest version
Package gstreamer1-plugins-good-1.0.7-5.el7.x86_64 already installed and latest version
Warning: Group multimedia does not have any packages to install.
Warning: Group internet-browser does not have any packages to install.
Warning: Group x11 does not have any packages to install.
Maybe run: yum groups mark install (see man yum)
No packages in any requested group available to install or update
[root@LiuZhen mnt]# show-installed
WARNING: The following packages are installed but not in the repository:
cups-pdf
WARNING: The following groups contain packages not found in the repositories:
XXX base
yum-plugin-security
XXX core
ql2100-firmware
ql23xx-firmware
ql2200-firmware
bfa-firmware
XXX gnome-desktop
unoconv
polkit-gnome
gvfs-obexftp
@base
-yum-plugin-security
@core
-bfa-firmware
-ql2100-firmware
-ql2200-firmware
-ql23xx-firmware
@dial-up
@fonts
@gnome-desktop
-gvfs-obexftp
-polkit-gnome
-unoconv
@guest-agents
@guest-desktop-agents
@input-methods
@internet-browser
@multimedia
@print-client
@x11
# Others
Red_Hat_Enterprise_Linux-Release_Notes-7-zh-CN
Red_Hat_Enterprise_Linux-Release_Notes-7-zh-TW
clucene-core
cups-pdf
grub2
lftp
samba-client
screen
# 1196 package names, 228 leaves
# 12 groups, 8 leftovers, 8 excludes
# 32 lines
可以执行startx看下效果。