#1. 进入SDK根目录
cd firefly-sdk
#2. 下载远程bundle仓库
git clone https://github.com/FireflyTeam/bundle.git -b rk3399-linux-bundle
#3. 更新SDK，并且后续更新不需要再次拉取远程仓库，直接执行以下命令即可
./bundle/update rk3399-linux-bundle
第三步更新时失败，不懂如何解决
虚拟机日志
book@100ask:~/Firefly_Linux_SDK_v1.0$ git clone https://github.com/FireflyTeam/bundle.git -b rk3399-linux-bundle
fatal: destination path 'bundle' already exists and is not an empty directory.
book@100ask:~/Firefly_Linux_SDK_v1.0$ ./bundle/update rk3399-linux-bundle
[Info]Update Bundle repo...
Already on 'rk3399-linux-bundle'
-------------------------------------------
[Info]Update to FETCH_HEAD:
error: Repository lacks these prerequisite commits:
error: 442ad5955470e2f4f2336881e9bc14ec4c041572
[ERROR]Fetch ./bundle/0.bundle error!!
book@100ask:~/Firefly_Linux_SDK_v1.0$