一、串口鉴权 加密登录
The default password for root is oelinux123
To disable username and password on MDM
Edit following file.
mdm/oe-core/meta-msm/recipes/sysvinit/sysvinit-inittab-2.88dsf/inittab
-- S:2345:respawn:/sbin/getty -L ttyHSL0 115200 console++S:2345:respawn:/bin/login
