While starting up an Intel-based Mac, press and hold the Option/Alt key. Connect the external drive to the target Mac and start the installation process.The step-by-step guide on upgrading your Mac using a USB installer is included below. Step 7: The USB device will return to the desktop after the data have been copied and bootable and the Terminal will notify you that the operation is complete. The terminal will update you on the status, so wait patiently. Step 6: The USB device will be unmounted during the operation and vanish from the computer's desktop. Step 5: Just hit Enter to execute the program, and if required, provide your administrator password. Replace ‘UNTITLED’ with your USB drive name if necessary. Sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia -volume /Volumes/UNTITLED & say Boot Installer Complete Step 4: To copy the installer to the flash device and enable it to boot, open a Terminal window and enter the following command: Verify that no additional volumes with the same name are already mounted. As a result, following the tutorial will be a little less challenging. Step 3: USB will be the name of the flash disc. Doing this action will permanently delete all information from the storage device. Launch the Disk Utility program and format the stick as a GUID Partition Map and Mac OS Extended (Journaled) if it is not already formatted as such.
Step 2: Put in a USB drive larger than 8 GB. Leaving the file name unchanged will make this instruction somewhat less complicated. Please transfer it to the Applications folder if it is located elsewhere on your computer. When the download is complete and the installer is launched, ensure it remains in the /Applications folder before closing it. Step 1: Get the latest version of High Sierra from the Mac App Store. How to Create A Bootable USB Installer for macOS High SierraĪ bootable USB drive for macOS High Sierra may be created by following these steps: There is no motivation here's how to make an installer for macOS High Sierra. Or perhaps you're nostalgic for the days when your Mac was brand new. If the accumulation of trash files has severely impacted your Mac's performance, or if you're planning to give your Mac to someone else and want to ensure that all of your data has been erased, then you should consider performing a thorough cleanup. All your data is still there, but so are the unnecessary applications and files you hoard.Īs a result, there are occasions when doing a fresh installation is the best option. It's simple to do and guarantees you'll have access to your data and applications as soon as possible. The standard procedure for updating to a new macOS version is simply installing it over the existing version.
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