Would the SIP system (systems integrity protection), prevent an external drive pre-loaded with High Sierra from functioning properly when paired with a 2010 iMac i3?
Been trying to use Kensington HDD as external boot drive. All I get at startup is circle with slash through it.
Once I actually made it to the High Sierra sign in screen, but not even close since then……Help….Please….
Where did you get a Mac OS preloaded drive? If was created via some sort of hacking process, there's plenty of reason right there for it not to work. For it to be malicious even. If you didn't create, don't trust it.
Why not erase the drive and do your own installation? Assuming you can do it on a 12 year old Mac, the OS download is at no cost and the process of creating a bootable flash drive is simple enough: How to create a bootable installer for macOS - Apple Support
But again, I just dunno about a 12yo Mac and what it can or can't do.
Thanks KU4HX for the help and advice. I think at this point I just want to get an operating system on there and sell it. I’ve purchased cds/dvds. Numerous bootable USB, and several external drives.
Now finding out for the video editing software I wish to upload, I need at least an i5, better an i7, best i9. I’m going to take your advice and erase the external drive, and download from Apple, and we will see what happens
Regardless, I'd still rather trust Apple. You never know exactly what's on any preloaded disk or what the source was for anything.
It's your call and that's fine. Over the last 20+ years I've seen too many "reputable" devices turn out to be malicious.
External pre-loaded High Sierra Kensington HDD/ SIP protection
