I have a repo that has another remote upstream besides origin. I can do git checkout origin/master, but when I run git checkout upstream/master, I get:
error: pathspec 'upstream/master' did not match any file(s) known to git.
This does not work either:
$ git fetch upstream
From https://github.com/getsentry/sentry
* branch HEAD -> FETCH_HEAD
$ git co -b asdf --track upstream/master
fatal: Cannot update paths and switch to branch 'asdf' at the same time.
Did you intend to checkout 'upstream/master' which can not be resolved as commit?
How to check out branches on upstream remote as I do on origin remote? My git version is 2.1.2.
Just fetch the refs from the remote (this will fetch all branch, commit, refs etc for the upstream repo)
git fetch upstream
After this, checkout the needed branch (this creates a local copy of the branch)
git checkout -b <branchname> --track upstream/<branchname>
Now if you want to pull the changes in this branch in future, all you need to do is
git pull upstream <branchname>
As mentioned here, try doing an explicit fetch on the branch name:
git fetch upstream master:branch_name
If you just added the remote, you'll need to fetch it so that Git knows which branches are available:
git fetch upstream master
After this you can do
git checkout upstream/master
without any issues.
来源：https://stackoverflow.com/questions/30862558/checkout-branch-on-different-remote