1.编写登录脚本-autologin：
#!/bin/bash
/bin/login -f <username> #你的用户名
将autologin文件移到到/usr/bin/下,并且用chmod +x autologin设置可执行权限
2.修改/etc/init/tty1.conf
修改前：
# tty1 - getty
#
# This service maintains a getty on tty1 from the point the system is
# started until it is shut down again.
start on stopped rc RUNLEVEL=[2345]
stop on runlevel [!2345]
respawn
exec /sbin/getty -8 38400 tty1
修改后：
# tty1 - getty
#
# This service maintains a getty on tty1 from the point the system is
# started until it is shut down again.
start on stopped rc RUNLEVEL=[2345]
stop on runlevel [!2345]
respawn
exec /sbin/getty -n -l /usr/bin/autologin -8 38400 tty1
重启系统后，则系统会默认用设置好的用户自动登录