Can’t tell from the ad. If it’s one model it’ll sort of support Ventura and Sonoma, with some bugs. If it’s a different model, it’ll work perfectly.
The 2010 iMac definitely isn’t going to go to Ventura as-is. There’s a link off the Open Core Patcher site for upgrading the graphics card, which would indeed get you up to Sonoma, but it’s not an easy job, and if you’re not already at ease taking Macs apart, you’d probably want to enlist help for that.
You should probably be able to run BIg Sur on it, though.
Generally speaking it is not hard to do this, but I would recommend the following:
- full backup with Carbon Copy Cloner to an external drive so you have a bootable external disk. Worst case if it doesn’t work, you can restore the disk from backup.
- Mr.Macintosh has pointers to download the installers, which you’ll need.
Basically you download and run the patcher, then download and run the installer. You shouldn’t have to do much else.
If I was buying a machine now, I’d try for something about 2015 vintage, but not the 2015 MacBook, be cause it and the machines after that until 2020 have the butterfly keyboards that kept failing.
If you are considering buying an older machine, find out what About This Macintosh… says the model is, and then check it against Supported Models | OpenCore Legacy Patcher, which has the full list of supported machines.
