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Editorial Team
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Asked: 2026-06-15T02:13:15+00:00

I made fixes and tests, git commit -a , updated my branches and now

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I made fixes and tests, git commit -a, updated my branches and now I’m trying to push to a GitHub fork I had previously made:

vagrant@rails-dev-box:~/rails$ git push mine my_fix
Username for 'https://github.com': myusername
Password for 'https://myusername@github.com':
To https://github.com/myusername/rails.git
 ! [rejected]        my_fix -> my_fix (non-fast-forward)
error: failed to push some refs to 'https://github.com/myusername/rails.git'
To prevent you from losing history, non-fast-forward updates were rejected
Merge the remote changes (e.g. 'git pull') before pushing again.  See the
'Note about fast-forwards' section of 'git push --help' for details.

I’m guessing the reason for this issue is the fork is a little outdated (by a week maybe). I’ve made other pushes to the fork though that I don’t want to lose. What do I do here?

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1 Answer

  1. Editorial Team

    While on a master branch locally:

    1. You need to add rails/rails as upstream:
      git remote add upstream git://github.com/rails/rails.git
    2. Now, pull with rebase (not with merge, as it will be easier to keep up with updates on rails/rails if you rebase)
      git pull --rebase upstream master
    3. Push the changes to your master (you will need force to push, but be careful and make sure you are OK with the changes, since previous changes will be somewhat harder to recover after this operation)
      git push --force origin master
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