Refer to the screenshot right under the command and you'll see immediately what I'm taking about here. The website font is making them appear like that. Also, see those single, long dashes? They're actually double dashes. Now, with the USB plugged in, type in the following command exactly as it is. Open up Spotlight Search and do a quick search of Terminal and hit the Return key on the keyboard.ģ. If it's already plugged in then move on to the next step.Ģ. Plug in the formatted USB drive to your Mac. It's best to read through the guide several times before ultimately punching in the command itself.ġ.

Also, this is the step which you have to get absolutely right otherwise all efforts will go to waste. This is the final step in the USB installer making guide. Once the USB is done erasing, move on to the next step.

Refer to the screenshot below to make sure you haven't made any change even by mistake. Without changing anything at all, click on the Erase button. Once Disk Utility is in view, select your USB drive from the available choices on the left then click on the Erase button at the top.ģ. You can launch it by opening Spotlight Search, then do a quick search for Disk Utility.Ģ. Plug in your USB drive to your Mac and then launch Disk Utility. Please do not make changes that are not outlined in the guide.ġ. Once you do, plug it in your Mac and follow the steps exactly as they're outlined below. Get yourself an 8GB (or more) USB flash drive. Format USB Drive Which You're Going to Use as Installer Source. Just leave the image file as it is in the Applications folder. Once the download is complete, do not install it. You can download it from the link posted below. If you don't have the macOS High Sierra image file, then you have to download it first. Download the macOS High Sierra Image File.

Mac os sierra usb installer