Getting a warning when installing homebrew on MacOS Big Sur (M1 chip) [closed]

Question

Has anyone seen this warning while installing homebrew? What does it mean? Should I be worried?

Warning: /opt/homebrew/bin is not in your PATH.

Some background info:

I read some blogs about M1 chip and thought I would need to install Rosetta 2 on my mac in order to install homebrew.

However, before I Rosetta 2, I tried installing the plain old /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)". The went through, and I saw "Installation successful!"

The only issue is that I saw the following warning.

homebrew Warning: /opt/homebrew/bin is not in your PATH.

Should I be worried? What does it mean?

Answer 1

I had the same issue today, on Mac OS Big Sur (with M1 chip). The problem is indicated in the warning : Warning: /opt/homebrew/bin is not in your PATH. It seems that it is the directory where the binaries of hombrew are put. To resolve, you can do :

1. Edit your ~/.zshrc or ~/.bashrc with at the end of file:

export PATH=/opt/homebrew/bin:$PATH

After this, tap source ~/.zshrc in your terminal or restart it.

For more infos about the current status of Homebrew on Mac with a M1 chip : Apple Silicon support in Homebrew

Edit : As mentioned by @kangkyu in this comment, Homebrew is changing to version 3.0.0 which supports officially Apple Silicon. If you have a prior version just brew update.

Answer 2

I have this warning too, but if you look at the "Next steps" and run those two lines, then you would be fine.