![]() The installation process should start follow the prompts. ![]() Highlight the Disk in the left hand panel, not any indented Volumes. From the bootable drive you can format, partition, update, or install macOS High Sierra. At the boot menu choose the macOS High Sierra 10.13 beta install from the boot loader screen where the installer will load. Enter: sudo /Applications/Install macOS High Sierra.app/Contents. ![]() In the Utilities folder, open the Terminal. In a minute or two you will see the Startup Manager select the USB and press Return.Īfter the mac has booted to the USB you will see a Utilities screen. With the High Sierra USB installer connected to the Mac, restart the computer ( Apple menu > Restart) and hold down the OPTION key. For the purposes of this tip, in the Finder name the external drive macinstall. The most up-to-date version of Safari is included with the latest version of iOS for iPhone or iPadOS for iPad. Restart the mac while pressing the option/ alt key. To find and install any updates or upgrades that are available for your Mac: Update your Mac. When it has completed you can eject the USB, and insert it directly to your mac. For older OS’s that you can now download directly from the web (Sierra, El Capitan, Yosemite), open the. MacOS High Sierra should be listed at the. To get it, open the Mac App Store and click the Updates tab. The process takes around 30 minutes to complete, be patient, Terminal will look like it is not MacOS High Sierra is available as a free update via the Mac App Store. Sudo /Applications/Install\ macOS\ Sierra.app/Contents/Resources/createinstallmedia -volume /Volumes/MyVolume -applicationpath /Applications/Install\ macOS\ Sierra.app If your USB name has more than one word separated by spaces you would need to type it in as Now paste in the createinstallmedia command for Sierra where MyVolume can be replaced with the name of your USB stick Sudo plutil -replace CFBundleShortVersionString -string "12.6.03" /Applications/Install\ macOS\ Sierra.app/Contents/ist With Install macOS Sierra.app in your Applications folder open Terminal. Where it returns an error Volumes/ is not a valid mount point. There is a problem with making a bootable USB installer with the Install macOS Sierra.app dmg called InstallOS.dmg,Īnd have you then processed that to get the Install macOS Sierra.app which appears in your Have you recently downloaded a copy of the macOS Sierra installer.
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