1. How to set static IP address?

If you want to set static address for eth0 device as 192.168.1.20.

sudo vim /etc/network/interface

And add the following lines:

auto eth0
iface eth0 inet static
address 192.168.1.20
netmask 255.255.255.0
gateway 192.168.1.1

Then reboot it!

2. How to install Chinese language package for pcDuino8 Uno

First make sure your pcDuino8 Uno has been connected to Internet.

Then open a terminal and run the following commands:

sudo board-config.sh

Select set_locale and Chinese (Simplified).