how to format drive mac install os x el capitan

I don't think the MacBook Pro supports anything higher than High Sierra officially. If I try to download HighSierra on the Macbook, it just craps out trying to install then tells me it's a downgrade (I know).

It's pointing at the newer models and methods and with a working OS.

I'm trying on Apple website to follow their procedure. Yes I have the Catalina MacBook I've borrowed from a mate. In answer to your questions, no it doesn't seem to support that as I'm not au fait with key sequences on boot. Because OS X wasn't running, I had to reformat the HDD to diagnose a failure. A1247 is the model, it's 17' Unibody with DVD that's all I know. I have the serial number but it's not forthcoming, no matter how I search.

It would be easier to advise if you'd stated exactly what model and year of MacBook Pro it is rather than just saying 'vintage'.ĭoes it support internet recovery? That might be the easiest option if it does.ĭo you still have access to the MacBook running Catalina? You could try Apple's own process for creating a bootable install drive rather than using a third party application.

How to format drive mac install os x el capitan