Tip: How To Download Old macOS Version Installer Using Terminal On Mac

[Alex5723AskWoody Plus]

How To Download Old macOS Version Installer Using Terminal On Mac

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Nathan Parker

[OscarCPAskWoody Plus]

Just curious: once one gets the installer of the older macOS version one would like to run in the Mac (bare metal or in a VM?) by following the instructions (*) in the article linked in Alex5723’s original entry, what does one do with the installer?

The article does not explain that and, never having downloaded and explicitly used an “installer” myself to update the whole system (always clicking “Install” in “/System Preferences/Software Update”), I wonder which, if any, of the methods described here would be the one to use:

https://www.howtogeek.com/177619/how-to-install-applications-on-a-mac-everything-you-need-to-know/

If not one of those, what then?

(*) Before doing that, better make sure to read the comments below the article itself, with corrections to the procedure as given by the author, as they point out  couple of mistakes he made.

Windows 7 Professional, SP1, x64 Group B & macOS + Linux (Mint) => Win7 Group W + Mac&Lx

[PKCanoDa Boss]

It is much the same as a Windows install.

Download the Installer using the commands in the above link.
The Installer downloads into the Applications folder.
If you want to install on the current machine, you can double click the Installer and it will go through the process you are used to.

You can make a bootable USB drive using the Disk Utility.
Then use terminal commands to put the Installer in the USB drive.
For a clean install you can boot from the USB drive and install.

Here are some links further explaining the process.
From Apple Support.  From MacWorld. From Lifehacker. From imore. From lifewire.

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Nathan Parker, willygirl, DrBonzo, OscarCP

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