RHEL 6.6安裝桌面環境GNOME

在測試服務器（Red Hat Enterprise Linux Server release 6.6）需要安裝桌面系統環境，於是選擇GNOME桌面環境安裝。 一：檢查系統的運行級別以及是否安裝了桌面環境

[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驗證是否安裝桌面環境組件 [root@localhost ~]# ps -A | egrep -i "gnome|kde|mate|cinnamon|lx|xfce|jwm" [root@localhost ~]# 二：安裝桌面環境相關軟件組 使用yum grouplist 可以看到有Desktop、Desktop Platfrom、X Window System、Graphics Creation Tools等桌面環境有關的軟件組件可以安裝 [root@localhost ~]# yum groupinstall "Desktop" "Desktop Platform" [root@localhost ~]# yum groupinstall "X Window System" "Graphics Creation Tools" 三：修改系統的啟動級別為 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:

將系統的啟動級別從3修改為5，然後重啟系統後，重啟過後出現下面界面，按照提示操作即可。操作完成後重啟系統即OK。