No OS on iMac to Mojave

Question

No OS on iMac to Mojave

Hello,

Firstly thank you for looking at this post. I'm sure the answer is quite easy, if you know how, and I simply don't.

I am selling my trusty iMac of 7 years. I followed the instruction to erase all data from it and to restore the os back to Mojave. At some point something went wrong.

I have reloaded the os 3 times, every time I update back up to Mojave then erase, I lose the Mojave os and reverts back to no os! Then I Have to rebuild it from no os to through Mountain Lion and then to Mojave.

Each time the disk is erased, I have a 2 hour job to bring it back up to scratch.

I have tried to partition the drive and to keep the os on there, but my credentials are still there (password to log on and name (no iCloud data etc, as I don't set the iMac up with connection to iCloud).

Can anyone help?

Thank you,

Aidan

iMac Line (2012 and Later)

Posted on Jun 26, 2019 9:40 AM

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Answer 1

Best reply

Old Toad

Level 10

208,295 points

Jun 26, 2019 10:19 AM in response to aidanfromwrexham

Legally you need to prepare the Mac according to this Apple document which means restoring it to the system it came with originally: What to do before you sell, give away, or trade in your Mac - Apple Support

Those sellers who are including the latest system are doing nothing but causing problem for the buyer.

It's up to the buyer to upgrade to the system they want as it will be associated with their Apple ID and not the sellers.

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Answer 2

Jun 26, 2019 10:02 AM in response to Lanny

that's the problem. Erase the disk and it loses all os information. I have to command R on boot up, and download the entire os system again. I could sell it with mountain lion, but no one on eBay or other sites seem to sell it with an out of date os on it.

Thank you for your reply though.

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Answer 3

Lanny

Level 6

13,201 points

Jun 26, 2019 10:20 AM in response to aidanfromwrexham

The idea is to install a fresh copy of the OS without you using your credentials to set it up. It sounds like you're installing it and then you're erasing it again. When the new buyer gets it, they should see the install screen when they first turn it on, giving them the chance to set it up.

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Answer 4

Lanny

Level 6

13,201 points

Jun 26, 2019 9:56 AM in response to aidanfromwrexham

Part of preparing it for resale involves installing the original Mac OS version. A 7 year old iMac didn't ship with Mojave.

How to reinstall macOS from macOS Recovery - Apple Support

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No OS on iMac to Mojave

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