[BUG] Native binary installation hangs in linux (server without npm installed)

Environment

• Platform (select one):
• [X] Anthropic API
• [ ] AWS Bedrock
• [ ] Google Vertex AI
• [ ] Other: <!-- specify -->
• Claude CLI version: Trying to install
• Operating System: Debian 6.1.140-1 (2025-05-22) x86_64
• Terminal: Windows Terminal

Bug Description

When trying to install using https://docs.anthropic.com/en/docs/claude-code/setup#native-binary-installation-beta, the process hangs with message: Cleaning up old npm installations...

The server doesn't have Claude Code nor npm installed.

Steps to Reproduce

1. Login to a Linux server without npm
2. curl -fsSL https://claude.ai/install.sh | bash

Expected Behavior

Claude Code gets installed

Actual Behavior

The process hangs until you process ctrl-c:

azureuser@web4:~$ curl -fsSL https://claude.ai/install.sh | bash
Setting up Claude Code...

Cleaning up old npm installations...
^C
✅ Installation complete!

Claude Code is not installed.

Additional Context

Running in a azure vm, probably not relevant.