#How to repair yosemite from dmg file using os x utilities mac os#
Make sure that it has at least 12GB of available storage and is formatted as Mac OS Extended. Connect the USB flash drive or another volume that you’re using for the bootable installer.Use the ‘createinstallmedia’ command in Terminal You can also rely on the power of Google to search and download a specific version you want, but preferably directly from the Apple website. You will create the bootable installer from this app, not from the disk image or. It installs an app named Install OS X El Capitan into your Applications folder. On a Mac that is compatible with El Capitan, open the disk image and run the installer within, named InstallMacOSX.pkg. OS X El Capitan El Capitan downloads as a disk image. Enterprise administrators, please download from Apple, not a locally hosted software-update server. Important: To get the correct installer, download from a Mac that is using macOS Sierra 10.12.5 or later, or El Capitan 10.11.6. If the installer opens after downloading, quit it without continuing installation. MacOS Catalina, macOS Mojave, or macOS High Sierra Installers for each of these macOS versions download directly to your Applications folder as an app named Install macOS Catalina, Install macOS Mojave, or Install macOS High Sierra. Download and installįind the appropriate download link in the upgrade instructions for each macOS version: The trick was to do a complete search on Google and I was able to find articles on the Apple website that had direct links to the DMG files. I couldn’t find the images/dmg anywhere in the AppStore (I only found updates and not the full installations). Downloading the images/dmg was not an easy task, at least in my experience. The installation kept timing out due to the connectivity issues, so I eventually decided to down the installation image and create a bootable UBS drive to use for the installation. There is nothing reliable and fast about their service/s. I have been struggling with using the internet install for a few days due to my current unreliable ISP (internet service provider), rain - SA’s mobile data-only network | Fast, affordable internet.