What disk format for mac os sierra for mac#
Then Super Eraser for Mac will help you completely format the selected hard drive and erase all data.
If you erased your entire disk instead of just the startup volume on that disk, macOS Recovery might. Disk Utility in macOS High Sierra or later can erase using either the newer APFS (Apple File System) format or the older Mac OS Extended format, and it automatically chooses a compatible format. And Shift-Option-Command-R isn't available.
The version of macOS offered by macOS Recovery might vary in some cases: If macOS Sierra 10.12.4 or later has never been installed on this Mac, Option-Command-R installs the macOS that came with your Mac, or the closest version still available. APFS file systems are currently case sensitive only, which means that “file” is different from “File”. MacOS Sierra places a few limitations on the new APFS file system, as it’s still experimental: Mac startup disks can’t be formatted with APFS, so you can’t use this for your Mac’s system drive. Set the Format type to Mac OS Extended (Journaled.) Click on the Apply button, then wait for. Click on the Erase icon in Disk Utility's main window. When Disk Utility loads select the volume (indented entry, usually Macintosh HD) from the Device list. You can run it on your Mac, then select the hard drive to format/erase. Select Disk Utility from the Utility Menu and click on Continue button. Disk Utility is a built-in app in macOS 10.12 Sierra. Solution 2: Format hard drive under macOS 10.12 Sierra with Disk Utility.
Disk Utility in macOS High Sierra or later can erase using either the newer APFS (Apple File System) format or the older Mac OS Extended format, and it automatically chooses a compatible format.