Mac OS Won't Upgrade
I have a Unibody MacBook that I purchased used and it’s in great condition.
I don’t have the original install discs, but I do own the full Mac OS 10.6.3 (Snow Leopard) install that I purchased for another computer back in the day. I used that to do a wipe and clean install, and have downloaded the updates from Apple to get it up to 10.6.8.
I would like to get it as updated as the Unibody will allow, but 10.6.8 on this machine will not connect to the AppStore. So I searched and downloaded both Lion and Mountain Lion upgrades directly from Apple Support.
They are both large files (4.72GB and 4.45GB respectively) but when I mount the disc image and run the install pkg files, they both tell me something similar to “This install will require 25MB of disk space” (which seems REALLY low to me for an OS upgrade) and when they finish installing, (which they both say they did successfully) it doesn’t tell me to restart or anything, and nothing seems to have changed. I manually restart it, and still I’m on 10.6.8.
Anybody have any suggestions? Can I buy install media that might do a better job of this from someplace and upgrade it directly to 10.13.x? I can’t do anything through the App store for this machine, and my iMac (which can access the App store) can’t install 10.13, so it won’t even let me download it.
EDIT - I found the Installer apps for both of these in the Applications folder, but when I run them, after typing my computer password, I get a message saying the Image could not be verified and may have been tampered with or failed during download. And the installer quits. Repeated downloads have shown no difference.
So again, both of these install’s have failed. I also tried downloading 10.11 from Apple. and that download just failed completely on its own without giving me the opportunity to try and mount the image.
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There are two versions of this system:
∙ 13" MacBook 2.26 GHz Core 2 Duo (Late 09) - 8 GB Max RAM
∙ 13" MacBook 2.4 Core 2 Duo (Mid-2010) - 16 GB Max RAM
Both can support upto High Sierra (10.13.6)
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