[BUG] Installer reports `Windows is not supported` when trying to install on non-Windows OS

Status Fixed / completed
Maintainer reply None cached
Activity 5 comments · opened Feb 25, 2026 · closed Feb 25, 2026

Preflight Checklist

  • [x] I have searched existing issues and this hasn't been reported yet
  • [x] This is a single bug report (please file separate reports for different bugs)
  • [x] I am using the latest version of Claude Code

What's Wrong?

Running bash install.sh reports Windows is not supported.

$ uname -s
FreeBSD

What Should Happen?

Installer should either work, or correctly report that the user's OS is not supported.

Error Messages/Logs

Steps to Reproduce

  1. Install FreeBSD
  2. Fetch https://claude.ai/install.sh
  3. Run bash install.sh

Claude Model

None

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

Not yet installed

Platform

Anthropic API

Operating System

Other

Terminal/Shell

Xterm

Additional Information

_No response_

View original on GitHub ↗

5 Comments

github-actions[bot] · 7 months ago

Found 2 possible duplicate issues:

  1. https://github.com/anthropics/claude-code/issues/20202
  2. https://github.com/anthropics/claude-code/issues/22564

This issue will be automatically closed as a duplicate in 3 days.

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🤖 Generated with Claude Code

emaste · 7 months ago

#22564 and #20202 are related but this report is for the bug in install.sh which will still be an issue, even with an explicit decision not to support FreeBSD.

stevenpetryk · 7 months ago

Thanks, good callout. I'll update the script to point to the installation instructions for other systems.

stevenpetryk · 7 months ago

This should go live in the next few days. Appreciate the heads up!

github-actions[bot] · 7 months ago

This issue has been automatically locked since it was closed and has not had any activity for 7 days. If you're experiencing a similar issue, please file a new issue and reference this one if it's relevant.