Disk Utility does not detect my hard drives in the bios recognizes perfectly, in fact Windows 10 I have no problems with them. Deputy screenshots. On the other hand I leave you a link of a post that I have created on how to install OSx Sierra, although it is in Spanish.
How to Format a Hard Drive under macOS 10.12 Sierra? How to Format a Hard Drive under macOS 10.12 Sierra? By Shirly Chen, 2017-02-10 “I have a 1TB external hard drive connected with my macOS 10.12 Sierra computer.
Now, it is full of junk files and virus. I was a Windows user and I don’t know to how to format a hard drive under macOS 10.12 Sierra. Can anyone help me?” There many users ask if they can format a hard drive under macOS 10.12 Sierra. If you also want to a solution for hard drive formatting under macOS 10.12 Sierra, you are at the right place.
In this article, I will show easy solutions to format a hard drive or external hard drive for macOS 10.12 Sierra. Three Solutions to Format a Hard Drive under macOS 10.12 Sierra If you have known how to format a hard drive under macOS 10.12 Sierra, you still can lean useful information in this article. I will offer three simple solutions to help Mac users to forma hard drive under macOS 10.12 Sierra. Please back up your important files before formatting your hard drive, no matter which solution you will choose. With these solutions, you can easily format a hard drive under macOS 10.12 Sierra.
Once the formatting process gets started, your data on the hard drive will be removed. Here are the three solutions to format a hard drive under macOS 10.12 Sierra. Solution 1: Format hard drive under macOS 10.12 Sierra with Super Eraser for Mac If you are going to resell, donate or give away your Mac hard drive/external hard drive, is your best choice to format the hard drive and permanently destroy all data. With advanced data erasure technology, can easily format the hard drive under macOS 10.12 Sierra and wipe all existing data/history data, beyond the scope of data recovery. It means your hard drive will be formatted by Super Eraser for Mac, and all the data on the hard drive will be permanently erased. So please be carefully when you use it to format your hard drive.
It is very easy to use. When you run on your macOS 10.12 Sierra computer, it will list all the hard drives and devices on your Mac. You just need to select the hard drive you want to format and click on “Wipe Now” button. Then Super Eraser for Mac will help you completely format the selected hard drive and erase all data. Solution 2: Format hard drive under macOS 10.12 Sierra with Disk Utility Disk Utility is a built-in app in macOS 10.12 Sierra. You can run it on your Mac, then select the hard drive to format/erase. The formatted data can be recovered by data recovery software.
Solution 3: Format hard drive under macOS 10.12 Sierra with Start Menu for Mac.
How to format your external drive for Mac You'll need to start with a clean thumb drive or hard drive in order to get it ready to work as a bootable drive. Plug the USB end of the drive to a USB port on your Mac. Click on Finder in your Dock to open a Finder window. Select Applications from the list on the left side of the window. Scroll down and double-click on Utilities. Scroll down and double-click on Disk Utility.
Select your drive under External. Click on the Erase tab at the top of the window. Note the name of your external hard drive (probably 'Untitled') because you will need it when you create a bootable drive. If you have more than one external hard drive named 'Untitled,' you will need to rename your hard drive now. If your Mac is using HFS+, select Mac OS Extended (Journaled) from the format list.
If your Mac is using APFS, select APFS from the format list. If Scheme is available, select GUID Partition Map. Click Erase.
Click Done when the process is complete. Close the Disk Utility window.
Your thumb drive or external hard drive is now ready. How to make your external drive bootable for installing macOS High Sierra Important:You will need to be in your Mac's administrator account in order to run the sudo Terminal command. Click on Finder in your Dock to open a Finder window. Select Applications from the list on the left side of the window. Scroll down and double-click on Utilities. Scroll down and double click on Terminal. Recall the name of your when entering the following text into Terminal.
If it is not named 'Untitled,' you will need to change the command syntax for the pathname where it says: Volumes/Untitled. The name of the drive can't have any spaces and it is case sensitive. Enter the following text into Terminal ( Don't forget to change the name 'Untitled' if your hard drive is named something else): sudo /Applications/Install macOS High Sierra.app/Contents/Resources/createinstallmedia -volume /Volumes/Untitled -applicationpath /Applications/Install macOS High Sierra.app.
Hit the enter/return key. Enter your administrator account password. This is the password you use to make changes on your Mac or log in. No text will appear in Terminal when you enter the password. The process could take a very long time, depending on the drive.
When it is done, the Terminal window will report 'Done.' How to use macOS High Sierra with an installer boot drive Once macOS High Sierra is installed on your external drive, you can boot up and install any Mac with the drive plugged into it.
Turn off the Mac you want to install macOS High Sierra with the bootable drive. Connect the external drive to your Mac via the USB port. Turn on your Mac.
Hold down the Option key when you hear the startup chime. Select the external drive with macOS High Sierra on it from the list of systems to start up your computer. The installation process will begin.
Follow the steps to install macOS High Sierra onto your Mac or partitioned hard drive. Do you have any questions about how to create a bootable installer drive for macOS High Sierra? Let us know in the comments. Updated September 2018: Updated for the public release of macOS Mojave.