Auto Login in Console Mode
Environment: Ubuntu 12.04
/* ------------------------------------------------------------Method 1
Install mingetty
#sudo apt-get install mingetty
open the tty1 conf
#sudo nano /etc/init/tty1.conf
modify the following lines:
From:
exec /sbin/getty -8 38400 tty1
To:
exec /sbin/mingetty --autologin root --noclear tty1
reboot
#sudo reboot
/* ------------------------------------------------------------End of Method 1
/* ------------------------------------------------------------Method 2
Install package
#sudo apt-get install xorg nodm
Enable Auto Login
#sudo nano /etc/default/nodm
modify the following lines:
NODM_ENABLED = true
NODM_USER = root
PS: NODM_USER is the user you want to login automatically when startup
/* ------------------------------------------------------------End of Method 2
延伸閱讀
What is getty?
wiki : http://en.wikipedia.org/wiki/Getty_%28Unix%29
按wiki的解說，就是 "get teletype", a utility call by "init", invoke login.
而 teletype 大慨是 teletypewriter / terminal
wiki: http://en.wikipedia.org/wiki/Tty_%28Unix%29
簡單說， 就是在startup的過程裏， 會call這個getty 進行登入程序．．． 如果要設定成自動登入就得使用mingetty 來取代原本的getty.
那麼甚麼是 mingetty?
根據網上解釋 就是 designed to be a
minimal
getty for the virtual terminals
on the the workstation's monitor and keyboard.
不求甚解下， 總之auto login 就用 mingetty 攪定吧．
mingetty -options as below:
- --noclear
- Do not clear the screen before prompting for the login name (the screen is normally cleared).
- --nonewline
- Do not print a newline before writing out /etc/issue.
- --noissue
- Do not output /etc/issue.
- --nohangup
- Do not call vhangup() to disable writing to this tty by other applications.
- --nohostname
- Do not print the hostname before the login prompt.
- --long-hostname
- By default the hostname is only printed until the first dot.
With this option enabled, the full text from gethostname() is shown.
- --loginprog /bin/login
- Change the login app.
- --nice 10
- Change the priority by calling nice().
- --delay 5
- Sleep this many seconds after startup of mingetty.
- --chdir /home
- Change into this directory before calling the login prog.
- --chroot /chroot
- Call chroot() with this directory name.
- --autologin username
- Log the specified user automatically in without asking for a login name and password. Check the -f option from /bin/login for this.
- --loginpause
- Wait for any key before dropping to the login prompt. Can be combined with --autologin to save memory by lazily spawning shells.
