If you upgraded to macOS Sierra 10.12.4 or later, you get the latest macOS version compatible with your Mac. Try clicking Disk Utility to erase your startup disk again, then tap on the "Reinstall OS X (macOS)" option to reinstall macOS/OS X. When Internet Recovery is loaded, you will see the OS X Utilities window. Restart your Mac, then immediately press and hold Command + Option + R until the spinning globe appears. If your Intel Mac is manufactured from late 2011 onwards and runs Mac OS X 10.7 Lion or later, you can utilize Internet Recovery without extra software. To drive your Mac to search for an updated reinstall certificate online, you need to switch to Internet Recovery, which starts with a built-in ROM that allows your Mac to connect to the internet and download recoveryOS and bootstrap reinstalling OS X. That's likely because your laptop's certificate for Mac OS X reinstalls has expired. Suppose you can't reinstall macOS with Command + R, which starts your Mac from the built-in macOS Recovery System. Step 1: Restart in Internet Recovery Mode. Reinstall OS X from a bootable installer.Check your startup disk's SMART status with Disk Utility.Turn the power on, hold down the Option key, and select the drive from the list that appears on the screen. To use it, simply connect the drive to the target Mac with the power off. Once it's done, you have yourself a bootable Yosemite installer drive. It should say "Copy Complete" when it's done. The process of readying the disk as a bootable drive will begin.You will be prompted to enter your system password - the password you use to update apps on your Mac, or to login at boot.Paste that text into the Terminal application and hit the Return key.Copy the following text: sudo /Applications/Install\ OS\ X\ Yosemite.app/Contents/Resources/createinstallmedia -volume /Volumes/Installer -applicationpath /Applications/Install\ OS\ X\ Yosemite.app -nointeraction Remember how I mentioned it was important to remember what your hard drive or USB thumbdrive was called? If you didn't call it "Installer," you'll need to change the pathname where it says /Volumes/Installer to the name of your drive.Open the Utilities folder if it's closed.This requires you to work in the Terminal application. The next step is to prepare the disk to operate as a bootable drive. To make the drive bootable for the Yosemite installer Format it for "Mac OS Extended (Journaled)." Click the Erase button.Remember it though, for the next step in our procedure. For the purposes of this How To, I've named it Installer. Name the drive whatever you'd like, but I'd recommend using one word, easy to remember. Select the hard drive or USB thumbdrive from the list on the left hand side of the Disk Utility window.Attach the drive to an available USB port on you Mac.
0 kommentar(er)
