編輯/etc/inittab文件

# 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:

找到這行代碼：id:3:initdefault:

它定義Linux進入系統(tǒng)后執(zhí)行的init動作級別，共有以下6個級別：

級別0，掛起、關(guān)機模式;

級別1，單用戶模式;

級別2，多用戶模式，但沒有網(wǎng)絡(luò)功能;

級別3，全功能的單用戶模式;

級別4，沒用到;

級別5，X11模式，也就是圖形化界面模式;

級別6，重起模式。

將原來的“3”修改成“5”，然后reboot重啟系統(tǒng)即可。

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