mv /tmp/ ~/Desktop/HighSierra.dmgĦ) Type in the following command and press Enter to detach the installation image that is currently mounted. Wait for the Copy of the Installation files to finish.ĥ) Type in the following command and press Enter to move the Installation Image to your Desktop. Input the Password to the account you are logged in.Īt this prompt, type in “Y” and then press Enter. sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia -volume /Volumes/install_build hdiutil attach /tmp/ -noverify -mountpoint /Volumes/install_buildĤ) Type in the following command and press Enter to start building the Install Media. hdiutil create -o /tmp/HighSierra.cdr -size 5500m -layout SPUD -fs HFS+Jģ) Type in the following command and press Enter to mount the Media File you just created. It is useful to have around if you do not want to re-download the Mac OS High Sierra installer from the internet again in order to re-install the Operating System.Ī) This can only be done on a Mac System.ī) This guide assumes you already downloaded the Mac OS High Sierra Installer from the App Store.Ģ) With Terminal open, type in the following command and press Enter to create the Media File. Mavericks arrived in October 2013 (latest version 10.9.In today’s post, I will show you how to create a Mac OS High Sierra ISO file. Yosemite arrived in October 2014 (latest version 10.10.5) and can run on the following Macs: MacBook Pro (Mid/Late 2007 to early 2015).Sierra arrived in September 2016 (latest version 10.12.6) and can run on the following Macs:Įl Capitan arrived in September 2015 (latest version 10.11.6) and can run on the following Macs: MacBook Air (Late 2010 to 2017, which is same as 2015 model).Owners of Macs with M1 or M2 chips won’t be able to run older versions of macOS that weren’t designed for M1 Macs. For this reason, it is unlikely that you will be able to install an older version of macOS on a new Mac-but you can take a look at how to install old versions of macOS or OS X for other Macs.
It’s likely that an older OS won’t include the necessary drivers for the hardware on your newer Mac.
Officially, the operating system that was available on your Mac at the time that you bought it is the oldest version of macOS that can run on that Mac.
To learn how to install the Sonoma beta read: How to install the macOS beta. For advice about installing Ventura read: How to install Ventura on your Mac. Read on to find out which Macs are supported by each version of the Mac operating system. With macOS Sonoma announced and currently in beta and likely to arrive on Macs in October, it’s likely that many Mac users will be wondering if their Mac will be able to support it or the current version of macOS, Ventura.
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