ubuntu12.04 串口登录系统配置

原文转自：http://blog.csdn.net/g__gle/article/details/8663239

1) Create a file called /etc/init/ttyS0.conf

# ttyS0 - getty
#
# This service maintains a getty on ttyS0 from the point the system is
# started until it is shut down again.

start on stopped rc RUNLEVEL=[2345] and (
            not-container or
            container CONTAINER=lxc or
            container CONTAINER=lxc-libvirt)

stop on runlevel [!2345]

respawn
exec /sbin/getty -L 115200 ttyS0 vt102

2) Ask upstart to start the getty
sudo start ttyS0