A simple way to check if you got the Root Permission in your MacOS or not

Run:

cp /bin/zsh /bin/zsh_backup
cp /bin/bash /bin/zsh
/bin/zsh --version 

If you see: cp: /bin/zsh_backup: Operation not permitted, then you don’t have the root permission at all.

I would suggest you return that Mac Machine, because it doesn’t belong to you, you don’t have full control over it.

---

Some of you may think you could go to the recovery terminal to do a remount to change the file system, but as far as I know, you can’t. Here is the command line, try it yourself:

mount -uw '/Volumes/Macintosh HD'

cd '/Volumes/Macintosh HD'
cp ./bin/zsh ./bin/zsh_backup
cp ./bin/bash ./bin/zsh

I think I won’t buy apple products anymore. (except airpods pro, the version that have noise cancel function

​