[android-developers] Need help building Android 2.2.2 (Unable to look up android.git.kernel.org)

I am trying to build Android 2.2.2 from scratch - is this the right way to do so?

~/bin/repo init -u git://android.git.kernel.org/platform/manifest.git -b froyo
Getting repo ...
   from git://android.git.kernel.org/tools/repo.git
fatal: Unable to look up android.git.kernel.org (port 9418) (Name or service not known)

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