DownToEarth Mac OS

adminMay 29 2021

DownToEarth Mac OS

Down To Earth Mac Os Download
Down To Earth Mac Os X

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Start up from macOS Recovery

Determine whether you're using a Mac with Apple silicon, then follow the appropriate steps:

Apple silicon

Turn on your Mac and continue to press and hold the power button until you see the startup options window. Click the gear icon labeled Options, then click Continue.

Intel processor

Make sure that your Mac has a connection to the internet. Then turn on your Mac and immediately press and hold Command (⌘)-R until you see an Apple logo or other image.

If you're asked to select a user you know the password for, select the user, click Next, then enter their administrator password.

Reinstall macOS

Select Reinstall macOS from the utilities window in macOS Recovery, then click Continue and follow the onscreen instructions.

Follow these guidelines during installation:

If the installer asks to unlock your disk, enter the password you use to log in to your Mac.
If the installer doesn't see your disk, or it says that it can't install on your computer or volume, you might need to erase your disk first.
If the installer offers you the choice between installing on Macintosh HD or Macintosh HD - Data, choose Macintosh HD.
Allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac might restart and show a progress bar several times, and the screen might be empty for minutes at a time.

After installation is complete, your Mac might restart to a setup assistant. If you're selling, trading in, or giving away your Mac, press Command-Q to quit the assistant without completing setup. Then click Shut Down. When the new owner starts up the Mac, they can use their own information to complete setup.

Other macOS installation options

When you install macOS from Recovery, you get the current version of the most recently installed macOS, with some exceptions:

On an Intel-based Mac: If you use Shift-Option-Command-R during startup, you're offered the macOS that came with your Mac, or the closest version still available. If you use Option-Command-R during startup, in most cases you're offered the latest macOS that is compatible with your Mac. Otherwise you're offered the macOS that came with your Mac, or the closest version still available.
If the Mac logic board was just replaced, you may be offered only the latest macOS that is compatible with your Mac. If you just erased your entire startup disk, you may be offered only the macOS that came with your Mac, or the closest version still available.

You can also use these methods to install macOS, if the macOS is compatible with your Mac:

Use the App Store to download and install the latest macOS.
Use the App Store or a web browser to download and install an earlier macOS.
Use a USB flash drive or other secondary volume to create a bootable installer.

Mac 911 is a place you can come with no judgement, even if you managed to erase your Mac’s startup disk and you’re not sure what to do next. It happens! (In the spirit of confession, I managed to delete the core operating system off my first Unix system in 1994, because I thought, “This file takes up too much space!”)

Fortunately, Apple has you covered with macOS Recovery. You may know this tool, introduced way back in Mac OS X 10.7 Lion, as a way to start up your computer to run Disk Utility without having your startup drive mounted, to reinstall macOS, and for a number of other technical purposes.

macOS Recovery occupies a small, invisible partition on your startup drive, and lives quietly there until you need it. But what happens if you erase the entire drive, including this hidden partition?

Macs can reach out over the internet and bootstrap themselves back into operation, as the Mac firmware—software built into a Mac that’s persistent and isn’t dependent on the operating system being installed—knows how to connect to the internet and reach Apple’s servers.

Start up your Mac from a shut down state or restart it, then immediately hold down Command-R. The Mac should recognize that there’s no macOS Recovery partition installed, show a spinning globe. You should then be prompted to connect to a Wi-Fi network, and you enter a password.

At this point, the Mac should start to download the recovery files from the internet and show a status bar. When complete, it should reinstall macOS Recovery and reinstall macOS on the main partition. (If your main macOS partition had system files become damaged or missing, your other files will remain intact, as this reinstallation only installs and replaces system files and apps.)

Command-R should reinstall the latest version of macOS that you had previously installed on this computer. However, you have other keystroke options depending on which version was previously installed.

Apple changed the start keys with macOS Sierra version 10.12.4. If you have ever installed that version on your Mac, no matter what version (or no version) is currently installed, you have these options.

Command-Option-R: Upgrade to the latest version of macOS that works on your Mac, which may not be the very latest release of macOS for older Macs.
Command-Shift-Option-R: Reinstall the version of macOS that your Mac shipped with.

With older versions of macOS:

Command-Option-R: Reinstalls the version of macOS that your Mac shipped with.

This Mac 911 article is in response to a question submitted by Macworld reader Luke.