Ensure the macOS you'll download is compatible with the Mac model that you'll boot. If you use M1 Mac, you should use Thunderbolt 3 drive.Ĥ. If you have modern Macs, you'd better use a USB 3 or USB Type C drive. Once the interface of the USB drive is not suitable with your Mac, it can't be detected or recognized by your Mac. Identify your Mac ports and make sure the USB drive is suitable. For names with over one word, the input format in the terminal is special.ģ. For later operations easier, you'd better set your drive or volume name with one word. That's because Mac OS Extended has higher compatibility among different OS versions and the OS installer requires such storage space to load.īy the way, to format a USB drive or partition a volume on a USB drive, go to Disk Utility. Prepare a clean USB flash drive or other secondary volume formatted as Mac OS Extended and with at least 32GB of storage (For macOS Big Sur, 64GB is better). A bootable USB drive should be created on a healthy Mac.Ģ. Here are what you should do before creating a bootable USB drive:ġ. So, you'd better follow this part carefully. The preparations listed below are very important as they decide whether you can create a USB installer successfully or not.
#Make bootable mac usb from esd for mac
If you want to retrieve files from your Mac that won't boot, you can run iBoysoft Data Recovery for Mac in macOS Recovery mode.
#Make bootable mac usb from esd how to
How to run iBoysoft Data Recovery in macOS Recovery Mode?
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