To do this boot your Mac while holding option + command + R Then when it loads (takes about 5 mins) go to disk utility and format your drive. ... <看更多>

with extra mac theres a solution: putting your "bad" mac in target disk mode and connecting with another "good" mac by firewire or ... ... <看更多>

Do not try it out on your own device! erase-install.sh is a script to reinstall macOS directly from the system volume using startosinstall , which is built into ... ... <看更多>