![]() It has now been superseded by APFS, Apple's new file system. ![]() You would now have a USB that was ready for the macOS installer to be restored/installed. Your USB pen drive will have a GUID partition map, with Mac OS Extended (Journaled) formatting, this is commonly known as HFS+ format and was the default for macOS for years. When the process is completed select the Done button. Select Erase button.ĭrive is unmounted, formatted as requested and then remounted. You can leave the disk name as 'Untitled' or change it to whatever name you want. The Erase options box appears, with the Scheme shown as Master Boot Record, this needs to be changed to GUIDįrom the Dropdown list select GUID Partition Map. This will wipe all data from the drive so backup any files you want to keep. General UDisk Media selected in the left hand column - USB pen drive to be erased ![]() Here are a few screenshots showing the process for Formatting/Erasing a MS-DOS Fat32 USB pen drive, changing it to HFS+ using Disk Utility: When formatted with this partition map the EFI partition is automatically created. You need to format the SSD with the GUID partition map, this can be HFS+ or APFS. Building a CustoMac Hackintosh: Buyer's Guide
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