A Step by Step Guide to How to Wipe a Mac Clean
Double click on the EFI drive to open it. You will see something like this:. Drag and drop the kext you downloaded into the proper folder.
When you see the begining splash screen you will need to press the the button that allows you to enter the boot menu. I know that on Gigabyte motherboards it is F Once you are in the boot menu select your USB drive:. Once you boot your USB you will be greeted with this screen. Press the right arrow key on your keyboard to navigate to the 'options' tab and press Enter. Next you will hit the down arrow key once so 'Boot Args' is highlighted and hit Enter. This will boot in verbose mode so if you have any errors or kernal panics we will be able to see what the problem is.
Now hit the down arrow key on your keyboard to scroll down to 'Return' and hit Enter. Once you hit Enter you will see this see video below. You made it to the install screen! The next thing we need to do is format the hard drive that we will install Mac OS X on. Go to the top in the menu bar and hightlight 'Utilities' then click on 'Disk Utility'. Then you will click the 'Erase' button.
Delete the Mac OS X 10.7 Lion Recovery HD Partition
In the drop down menu do the following:. Click 'Erase'.
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This will only take a couple of minutes to complete. If yours takes longer, just be patient. Once it has completed just close 'Disk Utility' by clicking the red circle. You will be taken back to the first OS X install screen. Here you will click 'Continue' Twice then click 'Agree' you should now see this:. It is a hard drive though. Once OS X is installed this can be fixed with a kext. Now choose the hard drive you just formated.
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You are now installing OS X to your internal hard drive. This can take from 15 minutes to 1 hour. Grab another cup of coffee and go get some fresh air. Once it is done installing your computer will reboot.
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You will need to boot using your USB install that we made earlier. This time you will pick the hard drive that you just installed OS X on. Make sure that you go into 'Options' and put the verbose boot argument in so if you have a problem we can see what the error is.enter site
Once booted into your hard drive you will fill out the information and then be taken to the desktop. From there you will install the Clover bootloader to your hard drive and install the kext to the hard drive how we did outlined in Step 4. This time to your hard drive.
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Please help? Thank you. I agree with Steve Chambers. Your hard drive is likely dying or dead google "click of death hard drive". It's actually quite easy to do yourself if you're careful and order one of the upgrade kits with the appropriate tools small screwdriver and a T6 torx along with the SSD.
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That allows you to run Disk Utility, reinstall or wipe and install the system, access Terminal for command-line functions, and so on. In that mode, when you choose to reinstall without erasing the drive, my recollection is that Recovery looks for the current OS system installer on your startup disk in the Applications folder, and uses that. When complete, it installs it and reboots, and places the installer in the Applications folder. There, the Mac reaches out over a Wi-Fi or ethernet connection to download the relatively modest Recovery software, which then bootstraps the download of the full macOS installer.
Apple says Internet-based Recovery should happen automatically on supported models, and you should see a spinning globe when that mode is invoked while the download occurs.