Mac OS X Mountain Lion 10.8.5 Update Combo

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Mac OS X Mountain Lion 10.8.5 Update Combo

What was represented as Mountain Lion software when I was buying not sure what I have now. I bought this from Apple did the download from the App Store . Burned it to a dvd from my iMac running Catalina no problem. I need this to install on a 2012 Mac Book Pro 13” non Retina .

Doing internet recovery with a new hard drive I can load and verify the disk and see it and it’s all green. How do I open it to get to the installer ? I cannot open this software with Catalina to see what’s inside, how do I see what’s inside .?

MacBook Pro 13″, macOS 10.13

Posted on Mar 13, 2021 11:38 AM

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Answer 1

Mar 13, 2021 11:48 AM in response to Surdeleven

This Mid 2012 iMac can run up to High Sierra.

I'd advise you to run this as it is a much more modern OS.

What you downloaded is and update, not the full installer actually.

First create a bootable USB installer How to create a bootable installer for macOS - Apple Support

Turn on that Mac holding shift and choose the USB installer to load Recovery Mode and proceed with installation.

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Answer 2

Mar 13, 2021 5:31 PM in response to Surdeleven

By USB drive I mean USB stick, one with 16GB is what you need.

I think a DVD won’t be enough these days, you know, installers have grown a lot and a 4,7GB DVD just won’t work.

Or maybe if you already have a USB hard drive, that can work, but you’ll have to partition it and all. A USB stick would be better.

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Answer 3

Surdeleven Author

Level 1

4 points

Mar 13, 2021 4:40 PM in response to Surdeleven

USB drive is the best way ? Not DVD ? I am very new at this and I appreciate your help. I don’t think I can find a USB drive here in my town and will have to wait to get to Wal Mart 35 miles away.

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Mac OS X Mountain Lion 10.8.5 Update Combo

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