tty 中文乱码，解决方案：安装 zhcon 或者 fbterm。只介绍fbterm。

1. 安装 fbterm

   $ sudo apt-get install fbterm
   

2. 问题 "cann't open frame buffer device!"

   $ sudo usermod -aG video username
   

3. 问题"[input] can't change kernel keymap table, all shortcuts will NOT work, see SECURITY NOTES section of man page for solution."

   $ sudo ...

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