RE: Can I Insert some Ancient History into a repo?

>
>However, I'm now not able to write the results back to BitBucket.  I've used "remote add" to add the reference to the existing remote >repo where L2 came from.  But when I try "git push origin" it tells me :
>
>fatal: The current branch master has no upstream branch.
>To push the current branch and set the remote as upstream, use
>    git push --set-upstream origin master
>
>Why does it do that?
>If I'm setting up a more conventional local repo to push to a remote it is usually sufficient to do "git remote add origin" and it'll then >push (ie one set-up using a simple fast-import from cvs2git, with the instance on the remote server created there).
>Presumably my current position of generating the local repo from scratch from multiple imports means it's missing something vital.  >What might it be missing?  Is it just that it is aware that it did not originate from a fetch and the above set-upstream is the best way to >fix it?  But other repos that originate from CVS exports are happy with just "remote add".
>Does git know that the repo of the same name on the remote server is somehow "different" from my hand-crafted repo?