![]() Speaking of Time Machine, it should restore the diagnostics on the boot drive if they were there to begin with, as long as you have TM set to back up system files in addition to your data. A GOOD thing to do really, just in case you need to nuke your hard drive. One more thing, it is FREE You can get it from the App Store or at mactracker.ca By prometheus Husband. Whither you want to be the ultimate Mac historian, use it for reference, or just want to see how far Macs have grown, the Mactracker database is for you. ![]() And now that Apple supports nondestructive partitioning, that would be relatively simple to do. Summary Mactracker is a great tool, with a lot of uses. You should be able to install this on your time machine drive for example. This would allow even an archive-and-install (but not an erase-and-install) to occur without killing your diagnostics, because it would be living on a separate partition. There are other things you can do though, such as creating a little 1gb partition (far bigger than required) and installing ONLY the necessary folders, and getting them properly blessed so they are detected by the hotkeys at startup. Unless you have selected the "archive and install" option, at which point I would expect it to get moved aside along with the entire OS, since that's where it was installed. If you are merely upgrading your OS however, I would expect the installer to preserve it. There's no clear method that I'm aware of that Apple supports for reinstalling it. Reinstalling your OS will erase the diagnostics. It is machine-specific, and is installed after the OS is installed, on new computers before they are shipped to the consumer. No, it's not a part of the operating system, and does NOT ship with any OS. ![]() As I said, I can't get to the installation DVD so it can wait.ĭoes the diagnostics folder exist in Yosemite, and does it persist after OS X updates (as opposed to reinstalls)? The reason I ask is because I can’t find it on my 2014 retina iMac, which I updated from Mac OS X 10.10.0 to 10.10.5. It's not urgent since opening and closing the lid solved the problem for now but was curious why neither of these options launched AHT. It therefore is a loose connection but it is not under AppleCare, obviously because of its age, so it is not worth the repair unless it is a part that is easy to get to and something that I can do.Įdit: I read on a website that with Option-D I can boot into Apple and run AHT however when I tried to do it, I got a globe icon and then it had an exclamation mark over the globe icon with an error code. Mactracker provides detailed information on every Apple Macintosh, iPod, iPhone, and iPad ever made, including items such as processor speed, memory, graphic cards, supported OS versions, price, storage, and expansion options. I don't usually shut the lid because it is home all the time. Download Mactracker for macOS 10.12 or later and enjoy it on your Mac. Yes, I did solve the airport problem for now by opening and closing the lid a few times because I know the card is in the hinge and yes, it must have a loose connection which became a problem when it was closed after shutting it down. I seem to remember when I bought my 15" mid-2010 that all I had to do in the store was hold down the D when starting up, without the install disk and it ran AHT.
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