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This article does not address the errors that occur when attempting to install Lion or Mountain Lion, e.g. "Can't download the additional components needed to install Mac OS X" or something about Can't verify this installation please re-dwnld fr iTunes

Have re-downloaded Mountain Lion at least 4 or 5 times, I have erased, repartitioned, and replaced hard drives and it seems no matter what I do, including removing one 4 GB sim from the laptop. ( Macbook Pro mid 2009 ). It fails. I have created and recreated a boot drive on a 8 GB USB and a 32 GB SDHC card. I when I had Lion on the laptop I had also made sure the apple ID account is the same for the computer in User/Groups as it was for the download of Mountain Lion. I have used Apple Macintosh since my first Mac SE in 1997. With all the posts on this issue on the web and the last 4 days I have spent working countless hours on this. It seems that Apple is going to be loosing clientel and market share. I would like to simply install an upgrade to the operating system. If there is anyone that can help with something I have not done that will allow me to install Mountain Lion on this Mac I would very much appreciate it. 🙂

MacBook Pro, Mac OS X (10.7.5)

Posted on Nov 19, 2012 4:29 AM

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drdocument

Level 4

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Posted on Nov 19, 2012 9:20 AM

A system install should not require downloading something from iTunes. Are you sure about that message?

Have you created more than one partition on your internal hard drive? Certain things are expected to be found on the same partition.

You do have a backup, right?

Do you have the Snow Leopard (10.6) install disk? Having done so much, I suggest doing a clean install of Snow Leopard (with no other removable devices connected, that is, without USB flash drive or SDHC card), update it with the Combo updater, then launch App Store and attempt to reinstall Mountain Lion (just skip Lion at this point).

Hope this helps.

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drdocument

Level 4

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Nov 20, 2012 7:37 PM in response to Ben_Graham

Cool! Probably worth checking out the RAM modules. Many reputable sellers will exchange no questions asked.

Did you install onto the SSD? If not, you should be able to install onto it now while it's in MBP.

Ben_Graham Author

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Nov 20, 2012 7:47 PM in response to drdocument

Yes, on the SSD. Just setting up all the adjustments to settings and preferences. I am in Australia now, and the memory was purchased at Amazon in the states, so not sure if returning will be worth the shipping cost, but I will look into it. It is tempting to put the memory back in, but I think not as I have lost to much time on my own software projects on this. I will follow up as far as If I read correctly in that this memory is okay for the mid 2009 MBP.

Again your help has been very useful in that it gave clear steps to follow and after all the trials and failures it gave space for the thought about the memory to arise. Gave it a go and it worked. 🙂

drdocument

Level 4

3,019 points

Nov 20, 2012 8:46 PM in response to Ben_Graham

Thanks. Glad it worked. This has renewed my interest in SSD.

Yes, it appears the 1066MHz RAM is meets 2009 MBP specs.

You can always have it tested at a more convenient time.

Ben_Graham Author

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Nov 21, 2012 4:45 AM in response to drdocument

Thank for your follow up Dr. Document. 🙂

Yes, I was not to sure on the SSD supply is seems limited, though I am just getting to know Adelaide. I ended up with a SanDisk Extreme 240 GB.

How does one test Memory? Go to a repair shop or perhaps some device to connect to the computer that can test it.

This article does not address the errors that occur when attempting to install Lion or Mountain Lion, e.g. "Can't download the additional components needed to install Mac OS X" or something about Can't verify this installation please re-dwnld fr iTunes