RG99
build ubiboot
步驟如下：
$ cd $ wget https://github.com/steward-fu/rg99/releases/download/v1.0/toolchain_rs90.tar.gz $ tar xvf toolchain_rs90.tar.gz $ sudo mv rs90 /opt/ $ export PATH=$PATH:/opt/rs90/usr/bin $ cd $ wget https://github.com/steward-fu/rg99/releases/download/v1.1/ubiboot.tar.gz $ tar xvf ubiboot.tar.gz $ cd ubiboot $ make CONFIG=rg99 clean $ make CONFIG=rg99 STAGE1_ONLY=y $ mv output/rg99/ubiboot-v10.bin ubiboot-stage1.bin $ make CONFIG=rg99 clean $ make CONFIG=rg99 $ mv output/rg99/ubiboot-v10.bin ubiboot.bin