Linux 启动改成命令行的界面

vi /etc/inittab然后有个关于启动的default。默认是5，就是x-windows，改成3就是命令行界面了。。。
[root@OracleRAC-data1 ~]# vi /etc/inittab
#
# inittab This file describes how the INIT process should set up
# the system in a certain run-level.
#
# Author: Miquel van Smoorenburg, <[url=]miquels@drinkel.nl.mugnet.org[/url]>
# Modified for RHS Linux by Marc Ewing and Donnie Barnes
#
# Default runlevel. The runlevels used by RHS are:
# 0 - halt (Do NOT set initdefault to this) 关机
# 1 - Single user mode 单人维护模式，和Windows的安全模式一样，用于修复的时候才用
# 2 - Multiuser, without NFS (The same as 3, if you do not have networking)多人无网络模式
# 3 - Full multiuser mode 多人模式，就是我们所希望的命令行模式
# 4 - unused 系统预制，为了以后扩展方便
# 5 - X11 X-Windows模式，就是图形界面
# 6 - reboot (Do NOT set initdefault to this)重新启动
#
id:5:initdefault: #<----改这个地方
# System initialization.
si::sysinit:/etc/rc.d/rc.sysinit
l0:0:wait:/etc/rc.d/rc 0
l1:1:wait:/etc/rc.d/rc 1
l2:2:wait:/etc/rc.d/rc 2
l3:3:wait:/etc/rc.d/rc 3
l4:4:wait:/etc/rc.d/rc 4
l5:5:wait:/etc/rc.d/rc 5
l6:6:wait:/etc/rc.d/rc 6
# Trap CTRL-ALT-DELETE
ca::ctrlaltdel:/sbin/shutdown -t3 -r now
# When our UPS tells us power has failed, assume we have a few minutes
# of power left. Schedule a shutdown for 2 minutes from now.
# This does, of course, assume you have powerd installed and your
# UPS connected and working correctly.
pf::powerfail:/sbin/shutdown -f -h +2 "Power Failure; System Shutting Down"
# If power was restored before the shutdown kicked in, cancel it.
pr:12345:powerokwait:/sbin/shutdown -c "Power Restored; Shutdown Cancelled"

# Run gettys in standard runlevels
# 在登录的时候，用Ctrl+Alt+F1到F7可以切换登陆模式，其中F1到F6是命令行，F7是图形界面

# 不过你要是觉得这种登陆界面态多，比如只用按F1到F3才是命令行，而按F4到F6什么事情都不会发生

# 那么只要删除4:2345到6:2345这几行就可以
1:2345:respawn:/sbin/mingetty tty1
2:2345:respawn:/sbin/mingetty tty2
3:2345:respawn:/sbin/mingetty tty3
4:2345:respawn:/sbin/mingetty tty4
5:2345:respawn:/sbin/mingetty tty5
6:2345:respawn:/sbin/mingetty tty6
# Run xdm in runlevel 5
x:5:respawn:/etc/X11/prefdm -nodaemon
h1:35:respawn:/etc/init.d/init.evmd run >/dev/null 2>&1 </dev/null
h2:35:respawn:/etc/init.d/init.cssd fatal >/dev/null 2>&1 </dev/null
h3:35:respawn:/etc/init.d/init.crsd run >/dev/null 2>&1 </dev/null
然后
sync;shutdown -r now
重新启动一下。就可以了。。。。（补充：听说inittab -p也可以。。。没试过）