Key: Media Eject (⏏), F12, mouse button or trackpad buttonĭescription: If some removable media is inserted into your Mac, this option will boot it with that media being ejected (i.e.
List of mac startup commands install#
It can be very helpful for troubleshooting.ĭescription: If you are having major issues with your Mac, this will load a menu that let's you run the Disk Utility and also completely reinstall macOS if you need to.ĭescription: In contrast to loading the Recovery OS, which will install whatever version of macOS you were running at the time, "Internet Recovery OS" allows you to download and install the macOS version that you device shipped with from the factory.ĭescription: Your Mac will carry out various hardware tests in order to try and identify a problem with its hardware, should there be one.ĭescription: If your hard-drive is so damaged that you can't actually run a proper hardware test as above, you can use this command to try and run one remotely, via the internet.ĭescription: If there are other disks on your network that you want your Mac to boot from, you can select them here.ĭescription: As above, this will attempt to boot your Mac from other disks on your network, but the default image will be used (you don't get to choose). Very useful for copying files!ĭescription: Instead of just seeing the loading progress bar and everything happening in the background, you'll see the text output of exactly what is being loaded/going on as your Mac boots.ĭescription: This mode disables all start up items and loads a minimum number of services and daemons. It can be useful for troubleshooting for advance users.ĭescription: Instead of loading macOS, your Mac will behave as if it's a USB-C or Thunderbolt external storage device. You only have a basic text console with which to execute commands.
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List of mac startup commands manual#