![]() Sure, it’s easy to upgrade but that means you’re reliant upon a previous version of OS X which makes things a little precarious.Īfter downloading the install through the App Store, it will be in your Applications folder. Sudo /Applications/Install\ OS\ X\ Yosemite.app/Contents/Resources/createinstallmedia -volume /Volumes/MyVolume -applicationpath /Applications/Install\ OS\ X\ Yosemite.As most in the Apple world may have noticed, it’s not straightforward to create a boot CD to perform a clean install of the new OS X version, Yosemite. I hope someone can help, I've spent hours on this and it's driving me crazy :) Is there any way I can download a full image, or anything else, to bypass the need to have the installer running before I'm able to create a bootable USB? ![]() Without the installer running in the Applications folder, I can't follow any of the steps on the Apple Support site (createinstaller terminal code process) or via any tutorials on YouTube or whatever comes up on Google. I have a MacBook Pro M1 and when I mount and then try to run the Yosemite installer, of course it crashes out with the error saying I can't install it on this computer. I have downloaded the Yosemite installer dmg. So my next option is to create a bootable USB pen which is where I'm having trouble. I have erased the hard drive as I wanted a clean slate and this method (wipe then reinstall) has worked fine for me in the past. ![]() I've tried booting the iMac and reinstalling the OS (El Capitan) but it failed saying that it couldn't find the package (?). I am restoring a 2008 iMac to basically factory settings and want to reinstall Yosemite as the OS. Sudo /Applications/Install\ OS\ X\ Yosemite.app/Contents/Resources/createinstallmedia -volume /Volumes/MyVolume -applicationpath /Applications/Install\ OS\ X\ Yosemite.app How to create a bootable installer for macOS – Apple Support In the Applications folder and the createinstallmedia command in the Terminal app. It is also possible to create a bootable USB installer disk using the Install OS X Yosemite.app If you need it in future, or you could just make a copy of the Install OS X Yosemite.app prior to installing and moving it toĪn external drive for safe keeping. ![]() The copy of the install app self deletes after installing Yosemite, so make sure you keep a copy of the InstallMacOSX.dmg To start the installation of Yosemite double click on the Install OS X Yosemite.app. You want to eventually install Yosemite 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. That and an installation window will open, this does not install Yosemiteīut converts the InstallMacOSX.pkg to the Install OS X Yosemite.app which When downloaded open to InstallMacOSX.pkg, double-click on The next section can only be done on a mac that is capable of running Yosemite,Ī mac that came preinstalled with an OS later than Yosemite will refuse to do the next bit. This downloads InstallMacOSX.dmg to your Downloads folder. Go to Download macOS and click on OS X Yosemite 10.10 How to get old versions of macOS – Apple Support Open your Safari browser and click on the link below, Which you use to install Mac OS X Yosemite 10.10.5 or create the bootable USB installer. After you download the InstallOSX.dmg you then go two more processes to get the Install OS X Yosemite.app
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