镜像下载链接：
- [light-a-val](https://yocbook.oss-cn-hangzhou.aliyuncs.com/linux_image/prebuild_light-a-val.tar.gz)
- [light-b-product](https://yocbook.oss-cn-hangzhou.aliyuncs.com/linux_image/prebuild_light-b-product.tar.gz)
- [light-beagle](https://yocbook.oss-cn-hangzhou.aliyuncs.com/linux_image/prebuild_light-beagle.tar.gz)
- [light-lpi4a](https://yocbook.oss-cn-hangzhou.aliyuncs.com/linux_image/prebuild_light-lpi4a.tar.gz)
