Within OS X Utilities, choose Reinstall OS X. ![]() At the Software Update screen, tap on Beta Updates. ![]() Prepare a clean external drive (at least 10 GB of storage). 1 hour ago &0183 &32 Go to Settings > General > Software Update as if you were going to update system software. The following method allows you to download Mac OS X Lion, Mountain Lion, and Mavericks. The correct steps to install macOS Mojave on your Mac running Catalina and later macOS are: erase your startup disk (Macintosh HD), c reate a bootable USB installer, and install the macOS Mojave onto your Mac. Install older OS X onto an external drive. You are unable to directly install an older version of macOS on top of a newer one. As confirmed by the company on its website (via MacMagazine ), Firefox 115, which was released today, is the last version of the web browser to include support for macOS Sierra 10.12, macOS High. When the download of the macOS installer completes, it will open automatically, and if your current macOS is older than the downloaded one, just follow the instructions to install macOS, if not, quit the process here. You should make sure there is enough disk space for the new macOS installer.īefore installing the downloaded macOS on your Mac, you'd better back up your Mac to avoid data loss. macOS 10.13 required at least 2GB of RAM and OS X 10.8 or later that’s not the case anymore. Then click Get to download macOS Mojave/Catalina/Big Sur on your Mac. Though, macOS Mojave does require more powerful hardware than High Sierra. If the date sets automatically disconnect from the internet, and rerun the command again then restart. A window will pop up and ask Open App Store.app? Click the Open button to open Mac App Store where you can see the entry of the target macOS version. After doing this in the terminal in the Mac OS installer, reboot the computer and try again.
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