How to create a bootable installer for macOS – Apple Support It is also possible to create a bootable USB installer disk using the Install OS X El Capitan.app in the Applicationsįolder and the createinstallmedia command in the Terminal app. Prior to installing and moving it to an external drive for safe keeping. InstallMacOSX.dmg if you need it in future, or you could just make a copy of the Install OS X El Capitan.app The copy of the install app self deletes after installing El Capitan, so make sure you keep a copy of the To start the installation of El Capitan double click on the Install OS X El Capitan.app. You want to eventually install El Capitan on, that is for later.) The disk that you are booted to at the time. (If the installation window asks which disk you want to install to, you must pick You will find in your Applications folder, it should be 6.2GBs in size. That and an installation window will open, this does not install El Capitanīut converts the InstallMacOSX.pkg to the Install OS X El Capitan.app which When downloaded open to InstallMacOSX.pkg, double-click on This includes macs that have the potential to run El Capitan but have been upgraded to a newer OS.Ī mac that came preinstalled with an OS later than El Capitan will refuse to do the next bit. The next section can only be done on a mac that is capable of running El Capitan. This downloads InstallMacOSX.dmg to your Downloads folder.
Go to Download OS and click on OS X El Capitan 10.11 How to get old versions of macOS – Apple Support Your 2009 MacBook can only upgrade to MacOS X El Capitan 10.11.6, which will once installed and updated through the App Store Updates page will run Safari 11.1.2.
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