Sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia -volume /Volumes/MyVolume -applicationpath /Applications/Install\ macOS\ High\ Sierra.app Paste that entire command line from below at the Terminal's prompt: Choose the appropriate command line (in red) depending upon what OS X installer you want.
![how to reformat usb flash drive mac how to reformat usb flash drive mac](https://img.gadgethacks.com/img/13/14/63537482320109/0/create-bootable-install-usb-drive-mac-os-x-10-10-yosemite.1280x600.jpg)
Open the Terminal in the Utilities' folder. Click on the Apply button and wait for the Done button to activate.Click on the Erase tab in the Disk Utility toolbar.After Disk Utility loads select the drive (out-dented entry with the mfg.'s ID and size) from the side list.You will need an 8GB or larger USB flash drive that has been partitioned and formatted for use with OS X. Simply replace the Terminal command with the one from the preceding article by copying it into the Terminal window.
HOW TO REFORMAT USB FLASH DRIVE MAC HOW TO
Second, see this How To outline for creating a bootable El Capitan installer.
![how to reformat usb flash drive mac how to reformat usb flash drive mac](https://helpdeskgeek.com/wp-content/pictures/2019/10/usb-drive-wrong-size-featured.png)
Set the Format type to Mac OS Extended (Journaled.)
![how to reformat usb flash drive mac how to reformat usb flash drive mac](https://cdn.osxdaily.com/wp-content/uploads/2012/04/format-drive-mac-windows-compatible.jpg)
A Mac cannot be started from an ExFat formatted disk.ĭrive Partition and Format - El Capitan or Later