Thanks to https://github.com/mvallim/live-custom-ubuntu-from-scratch https://github.com/jkbys/ubuntu-ja-remix Overview Create ubuntu 20.04 focal Japanese live iso. Includes Broadcom WiFi driver and my favorite package for my MacBook. How to use sudo ./build.sh # "focal.iso" will be created. Bug のインストール icon will be occured on the Desktop. Means ubiquity installer.