How do I resolve an unknown boot issue on iMac 2009?

I’m trying to understand what this means and how I can bypass or fix this as I can’t find anything except two images online one of wich says to boot into efi but can’t find same images while searching for this. And it won’t let me upload pictures or video here for some reason. Can I email someone? It’s a iMac 2009



[Re-Titled by Moderator]

Original Title: Anyone know what this is?

Posted on Jul 28, 2025 8:37 AM

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4 replies

Jul 28, 2025 6:59 PM in response to Agshsjshs

If a 27-inch 2009 iMac, they had enough issues with failing hard drives that, for a while, Apple had a Repair Extension program to cover it. That program is long expired.


You upload still images here with this tool:



Images must be in .png or jpg format and 5MB or smaller in size.


Can I email someone?


Apple does not permit private messaging or other communication outside of posting here. Any email addresses posted get zapped immediately,

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How do I resolve an unknown boot issue on iMac 2009?

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