/dev management选mdev,启动的时候自动创建/dev目录下的设备节点.
这个功能还需要内核的配合才行,内核需要配置:
Device Drivers->Generic Driver Options:选上下面这两项
[*] Maintain a devtmpfs filesystem to mount at /dev
[*] Automount devtmpfs at /dev, after the kernel mounted the rootfs
控制台的配置,也是在System configration下
[*] Run a getty (login prompt) after boot
getty options ---> (ttyPS0) TTY port --这里配置好串口号和速率
Baudrate (115200) --->
(vt100) TERM environment variable
() other options to pass to getty