How to start disk utility on mac during start up

#HOW TO START DISK UTILITY ON MAC DURING START UP SOFTWARE#
#HOW TO START DISK UTILITY ON MAC DURING START UP MAC#

This mode is good for when you need to troubleshoot a startup issue, or modify a file or application that is preventing proper startup. This is a terminal interface that allows you to login and interact with your computer via text input only.

#HOW TO START DISK UTILITY ON MAC DURING START UP MAC#

Holding down Command + S during startup will boot your Mac into Single User Mode. Verbose mode exits automatically when the computer's startup process progresses sufficiently and the blue screen appears. It will contain information important to startup, allowing you to diagnose startup problems by seeing any errors that may be occurring during startup. Using this key combination will cause your Mac to become very verbose on startup and will show a terminal-like interface while booting.

Press Command + V During StartupД¬ommand + V boots your Mac into what is called Verbose Mode. Check out this article for more information about booting into Safe Mode.

#HOW TO START DISK UTILITY ON MAC DURING START UP SOFTWARE#

If you are having OS X boot problems, always try this first to check and see if you have a rogue piece of software preventing your Mac from booting properly. This Safe Mode feature is a great way to troubleshoot OS X applications and extensions that arenвЂ™t working properly. It will disable all non system fonts, all startup items, and login items. Start up your machine while holding down the Shift key to have OS X only load required kernel extensions and login items. OS X includes a boot option called Safe Mode. Follow our guide on Target Disk Mode for more information on how it works.

Sometimes itвЂ™s best to just retrieve those files and start fresh with a clean copy of OS X. If you don't have a separate backup of your data, contact Apple's support services for next steps.Target Disk Mode is a great way to retrieve your files from your Mac if your machine refuses to boot properly. If Disk Utility found errors that it was unable to repair, you may need to erase the disk and reinstall macOS. Repeat this step for each volume on the disk, then each container on the disk, then lastly the disk itself.

After Disk Utility has completed the check, select the next volume or container above it in the sidebar, then run First Aid again.

If you can't click the button, skip this step for the volume you selected. Click Run or Repair Disk to check the volume for errors.Start by selecting the last volume on the disk, then click the First Aid button. Beneath it you should see any containers and volumes on it. The top disk in the side column is your internal disk.Choose View -> Show All Devices from the toolbar in Disk Utility.From the utilities window in macOS Recovery, select Disk Utility and click Continue.

If prompted, select a user, then click Next and enter the password.

Turn on your Mac and continue to press and hold the power button until you see the startup options window.

On Macs powered by Apple silicon, such as the M1 MacBook Pro, the process is a little different, as described in the following steps. On Intel-based Macs, pressing the Command-R key combination immediately on booting invokes Recovery mode. Fortunately, in such cases you can still get to Disk Utility from macOS Recovery. Disk Utility is Apple's go-to macOS app for finding and repairing common disk errors, but if it's your Mac's internal disk that's the problem, then your Mac might not even start up into macOS.

How to start disk utility on mac during start up