linux autologin

每次输入用户名/密码登录比较烦人,于是便寻找一个自动登录工具,而gdm和kdm依赖关系一大堆.试用了一下xdm和slim.

使用xdm时,不知道为什么环境变量总会被改,比如locale和PATH什么的,google半天,没有找到原因.

slim比较漂亮,可以选择session,可以设置默认登录的用户,不过还要输入密码.

Google查到可以实现自动登录login shell,下面介绍一下步骤:

源代码 autologin.c

int main() {                                                                                
        execlp( "login", "login", "-f", "your_user_here", 0);                                       
}
your_user_here 是你的用户名

编译,安装

gcc autologin.c -oautologin
sudo cp autologin /usr/sbin/autologin

配置 /etc/inittab

确保默认运行级别为3

id:3:initdefault:

修改

c1:2345:respawn:/sbin/agetty 38400 vc/1 linux

为

c1:2345:respawn:/sbin/agetty -n -l /usr/sbin/autologin 38400 vc/1 linux

配置 ~/.bash_profile

增加

if [ -z "$DISPLAY" ] && [ $(tty) == /dev/vc/1 ]; then
    startx
fi  

本文参考: http://ubuntuforums.org/archive/index.php/t-31310.html该文章如下：

Are you tired off typing logins? Don't want to load heavy/waste of time login managers?

This guide let's you have autologin and autostart for your XFCE: :razz:

Let's open a console and then create the file autologin.c

sudo nano autologin.c

and paste this code inside (middle mouse button will paste the text you underline):


int main() {
execlp( "login", "login", "-f", "your_user_here", 0);
}


replace the string: your_user_here with the user you want to autologin. (ctrl+X to save) btw, use your prefered editor.

Let's compile.. you will need to have gcc installed:

sudo gcc -o autologin autologin.c

copy the compiled autologin file into /usr/local/sbin

sudo cp autologin /usr/local/sbin

now we need to edit the file /etc/inittab

sudo nano /etc/inittab

search for this:

1:2345:respawn:/sbin/getty 38400 tty1

put a # to comment this line and add this new line:


1:2345:respawn:/sbin/getty -n -l /usr/local/sbin/autologin 38400 tty1


it will look like this:

#1:2345:respawn:/sbin/getty 38400 tty1
1:2345:respawn:/sbin/getty -n -l /usr/local/sbin/autologin 38400 tty1
2:23:respawn:/sbin/getty 38400 tty2
3:23:respawn:/sbin/getty 38400 tty3
4:23:respawn:/sbin/getty 38400 tty4
5:23:respawn:/sbin/getty 38400 tty5


this will make the autologin stuff...



let's make the autostart:

nano .bash_profile

put this code on the bottom and save it


if [ -z "$DISPLAY" ] && [ $(tty) == /dev/tty1 ]; then
startxfce4
fi



then you just have to remove your login manager :

sudo apt-get remove gdm xdm kdm


reboot your machine

I used this page as guide:

http://www.dicas-l.unicamp.br/dicas-l/20030129.shtml