Download earlier versions of macos on mojave

User profile for user: smg smg Reply I have this question too 30 I have this question too Me too 30 Me too. Are you trying to upgrade your mac to macOS Mojave. Have you been trying to upgrade your mac using the updates downloaded from the Apple Support Downloads page.

The updates there for Mojave are exactly that they are updates and these can only be installed if your mac is already running an earlier version of macOS Mojave. That is probably why you see the 'you need As usual Apples error message give you no clue as to the real issue To install a new OS you need the full installer app which you can only get through the App Store.

Here is how to get the full installer app. This will download the Install macOS Mojave. It is very to download macOS Mojave Click the Apple icon located in the top left corner of your screen. Turn on Time Machine by moving the slider to On.

Click Select Backup Disk and choose the external drive you want to use for your backup. The external drive will be formatted, and the backup process will start in a few minutes. Step 1: Format the USB drive. Choose your USB drive and click Erase. Click Erase. This may take a couple of minutes, depending on how big your flash storage is. Click Done. Step 2: Re-download your chosen macOS installer file. Connect the formatted USB drive to your computer. Rename the drive if necessary.

Type in your password. This process can take a while, so be patient. When you see the word Done, this means that the bootable drive has been created. You might find it easiest to begin installation in the evening so that it can complete overnight, if needed. If the installer asks for permission to install a helper tool, enter the administrator name and password that you use to log in to your Mac, then click Add Helper.

Please allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac might restart, show a progress bar, or show a blank screen several times as it installs both macOS and related updates to your Mac firmware. Get connected It takes time to download and install macOS, so make sure that you have a reliable Internet connection. After you download the installer from the App Store, the installer opens automatically. Safari downloads the following older installers as a disk image named InstallOS.

Open the disk image, then open the. It installs an app named Install [ Version Name ]. Open that app from your Applications folder to begin installing the operating system.