Preparing the GitHub.com source organization

Before migrating repositories from a GitHub.com organization, ensure that you have the proper authentication and administrative access.

Ensure that you have owner permissions on the source organization's repositories.
Generate an access token with the repo and admin:org scopes on GitHub.com.
To minimize downtime, make a list of repositories you want to export from the source instance. You can add multiple repositories to an export at once using a text file that lists the URL of each repository on a separate line.