firmware master.zip 官方给出的 Ubuntu mate 16.04 镜像并不支持树莓派 3 代 B+ 文件

解决 树莓派3b+安装Ubuntu 16.04 开机蓝红彩虹屏 This repository contains pre-compiled binaries of the current Raspberry Pi kernel and modules, userspace libraries, and bootloader/GPU firmware.