RHEL 6.6安装桌面环境GNOME

在测试服务器（Red Hat Enterprise Linux Server release 6.6）需要安装桌面系统环境，于是选择GNOME桌面环境安装。

一：检查系统的运行级别以及是否安装了桌面环境

[root@localhost ~]# runlevel

N 3

[root@localhost ~]# yum grouplist | more 

Loaded plugins: product-id, security, subscription-manager

This system is not registered to Red Hat Subscription Management. You can use subscription-

manager to register.

Setting up Group Process

Installed Groups:

   Additional Development

   Base

   Console internet tools

   Directory Client

   E-mail server

   Fonts

   Graphical Administration Tools

   Hardware monitoring utilities

   Java Platform

   Large Systems Performance

   Legacy UNIX compatibility

   Legacy X Window System compatibility

   NFS file server

   Network file system client

   Networking Tools

   PHP Support

   Performance Tools

   Perl Support

   Scientific support

   Security Tools

   Server Platform

   System Management

   System administration tools

   TurboGears application framework

   Web Server

也可以使用下面命令验证是否安装桌面环境组件

[root@localhost ~]# ps -A | egrep -i "gnome|kde|mate|cinnamon|lx|xfce|jwm"

[root@localhost ~]#

二：安装桌面环境相关软件组

使用yum grouplist 可以看到有Desktop、Desktop Platfrom、X Window System、Graphics Creation Tools等桌面环境有关的软件组件可以安装

[root@localhost ~]# yum groupinstall "Desktop" "Desktop Platform"

[root@localhost ~]# yum groupinstall "X Window System" "Graphics Creation Tools"

三：修改系统的启动级别为 5

[root@localhost ~]# vi /etc/inittab

# inittab is only used by upstart for the default runlevel.

#

# ADDING OTHER CONFIGURATION HERE WILL HAVE NO EFFECT ON YOUR SYSTEM.

#

# System initialization is started by /etc/init/rcS.conf

#

# Individual runlevels are started by /etc/init/rc.conf

#

# Ctrl-Alt-Delete is handled by /etc/init/control-alt-delete.conf

#

# Terminal gettys are handled by /etc/init/tty.conf and /etc/init/serial.conf,

# with configuration in /etc/sysconfig/init.

#

# For information on how to write upstart event handlers, or how

# upstart works, see init(5), init(8), and initctl(8).

#

# Default runlevel. The runlevels used are:

#   0 - halt (Do NOT set initdefault to this)

#   1 - Single user mode

#   2 - Multiuser, without NFS (The same as 3, if you do not have networking)

#   3 - Full multiuser mode

#   4 - unused

#   5 - X11

#   6 - reboot (Do NOT set initdefault to this)

#

id:3:initdefault:

将系统的启动级别从3修改为5，然后重启系统后，重启过后出现下面界面，按照提示操作即可。操作完成后重启系统即OK。