If you want your Mac to start up again from the volume you just you erased, select Reinstall macOS in the utilities window, then click Continue and follow the onscreen instructions.Plug your external hard drive into your Mac. When done, quit Disk Utility to return to the utilities window. 1.If you’re using a MacBook to format the drive, ensure it’s either fully charged or connected to a power supply to ensure it doesn’t turn off in the middle of the process.Optional: If you previously used Disk Utility to add internal volumes other than Macintosh HD, you can erase them individually using the same process.If this button isn't shown, click Erase instead. Format: APFS or Mac OS Extended (Journaled), as recommended by Disk Utility. Click the Erase button in the toolbar, then enter the requested details:.Select Macintosh HD in the sidebar of Disk Utility.From the utilities window, select Disk Utility and click Continue.If asked, select a user you know the password for, then enter their administrator password. Select Macintosh HD, or whatever your boot drive is called, from the list in the sidebar.This is why your Mac wont boot from the external USB drive. Start up from macOS Recovery: Turn on your Mac, then immediately press and hold these two keys until you see an Apple logo or other image: Command (⌘) and R. But in most situations, when the USB drive doesnt show up as the startup disk, it is necessary to reinsert the drive or try another port on your Mac to check the connections.
0 Comments
Leave a Reply. |