Change master to Rails 3 branch in GIT?

I currently have the following structure in my GIT repository:

// LOCAL
   /master
   /rails3 (HEAD)

// REMOTE
   /HEAD
   /master
   /rails3

I am not sure why the remote (GitHub in this case) has a HEAD branch and the local version doesn't.

I am trying to workout what how to switch the Rails3 branch to be master and rename the master branch to be called Rails2. I am using Tower for Mac which has a rename option for the local branches but I am concerned what will happen if I then push that branch to the master.

Any help/advice is greatly appreciated!

Thanks,

Danny

UP开发者_开发问答DATE

  git branch -a

  MacBook:BaseApp2 danny$ git branch -a
  master
* rails3
  remotes/beanstalk/master
  remotes/beanstalk/rails3
  remotes/heroku/master
  remotes/origin/HEAD -> origin/master
  remotes/origin/master
  remotes/origin/rails3

What does git branch -a displays for you?

I have for instance:

$ git branch -a
* master
  remotes/origin/HEAD -> origin/master
  remotes/origin/master

meaning HEAD isn't a branch, but a pointer (commit) to the remote master branch.

To change the branch referenced by HEAD (and rename master on the GitHub side), see:

"How do I change a Git remote HEAD to point to something besides “master”"