Hello

I follow like:

git clone -b beta --single-branch github.com/my_name/public_repository
git fetch origin
git checkout beta
git remote add upstream github.com/my_name/private_repository
git pull upstream beta 
git add .
git push

I stopped at git pull upstream beta because the error is:

fatal: couldn't find remote ref beta

My private_repositoryhas only a branch master. My public_repository has two branches – master and beta.