The --apple-use-keychain option is in Apple's standard version of ssh-add, which stores the passphrase in your keychain for you when you add an ssh key to the ssh-agent. If you have installed a different version of ssh-add, it may lack support for --apple-use-keychain.
Solving the issue
To add your SSH private key to the ssh-agent, you can specify the path to the Apple version of ssh-add:
/usr/bin/ssh-add --apple-use-keychain ~/.ssh/id_ed25519
참고
- The
--apple-use-keychainoption is in Apple's standard version ofssh-add. In macOS versions prior to Monterey (12.0), use-Kinstead of--apple-use-keychain. - If you created your key with a different name, or if you are adding an existing key that has a different name, replace id_ed25519 in the command with the name of your private key file.
Further reading
- Generating a new SSH key and adding it to the ssh-agent
- Linux man page for ssh-add
- To view Apple's man page for SSH-ADD, run
man ssh-addin Terminal