Exit code 132 (Illegal instruction) on Intel iMac 2011

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?

macOS: Sequoia 15.6.1
Processador: Intel Core i5 2.5 GHz (2011)
Erro: 1892 Illegal instruction: 4
Mensagem completa: Installation was killed before it could finish (exit code 132)

What Should Happen?

O instalador deveria completar com sucesso e instalar o Claude Code CLI,
ou exibir uma mensagem de erro clara indicando que o hardware não é suportado,
em vez de falhar silenciosamente com exit code 132.

Error Messages/Logs

1892 Illegal instruction: 4  "$binary_path" install ${TARGET:+"$TARGET"}
Installation was killed before it could finish (exit code 132).

Steps to Reproduce

1. Abrir Terminal no macOS Sequoia 15.6.1
2. Executar: curl -fsSL https://claude.ai/install.sh | bash
3. Aguardar o instalador terminar
4. Receber erro: "1892 Illegal instruction: 4" com exit code 132

Claude Model

Not sure / Multiple models

Is this a regression?

No, this never worked

Last Working Version

_No response_

Claude Code Version

Claude

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_