我该怎么做?

root@mch-desktop:/home/embest/android_build# repo init -u git://labs.embinux.org/embinux-android-build/android-omap3/repo/android/platform/manifest.git -b beagle-cupcake
bash: repo: command not found

这个错误,是因为没有更新源吗?我现在必须下载这个东西,我在source.list里该添加什么?跪求各位!

bash: repo: command not found

You should Install repo tool