How to Free Up Disk Space for Docker: No Space Left on Device - Fix Git 'fatal: refusing to merge unrelated histories' on GitHub-Viewing the Diff in a Git Merge Conflict

Updated 2026-07-28 20:50:45developer-tools
How to Free Up Disk Space for Docker: No Space Left on Device - Fix Git 'fatal: refusing to merge unrelated histories' on GitHub-Viewing the Diff in a Git Merge Conflict
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.