What can I do if my iMac boots with a question mark?
I purchased an older iMac a few weeks ago, because I couldn’t afford a MacBook Pro.
I don’t even know if the stats I listed are correct. This is what i do know:
8 GB memory, it’s 27” from corner to opposite corner and it’s a 2009,
In addition I finely found a great deal on eBay last week, and purchased a mid 2012 MacBook Pro.
After I got the MacBook Pro, I removed the HD, and used it as the drive to make a time machine full back up of my iMac.
The iMac I purchased was struggling with speed and I had my new (to me) MacBook Pro with an SSD and 16 GB of RAM, so I thought I would format the drive to free up some of the 220 of 250 GB I was using. I was only planning on using it to watch Sling, web surfing and listen to music. But, after I formatted, it wouldn’t load High Sierra on its own.
I downloaded High Sierra on my MacBook Pro, and used the command in terminal to install High Sierra on a USB thumb drive. It wouldn’t load from startup on the iMac, then i clicked startup disk, and clicked to install there - it did, and then when it rebooted, it will only show a question mark on the screen, I rebooted a few times,
I then I had a ridiculous idea, and decided to throw a copy of my Windows 10 CD in the drive, to try and get to a command prompt or anything other than a question mark - but it didn’t do anything , no surprise. hindsight is 20/20. I can’t eject the cd, and can’t get to terminal.
Help!
Update (11/08/2018)
I have been messing with this thing for 2 days straight now.. The only thing that I’ve been successful at was getting the CD out of the drive - Thanks Dan! Holding the mouse button worked.
Before I ramble on with the struggles I've had, I want to say this - When I purchased this iMac a few weeks ago, it had High Sierra already on it. Apple was as surprised as you all where when I called about a technical issue I was having a couple days in they wouldn't help me troubleshoot it, because of that reason.
Now for my trials and failures!
I have tried to install El Capitan, Mountain Lion, and High Sierra - on my 32GB USB and my 500GB 860 EVO SSD, with no success.
I’ve followed instructions on all, but the furthest I can get is a screen with a lock requiring a password.
I only have a PC Windows keyboard, but through all of my investigation I learned that the Windows key, is the command key on a Mac keyboard - but I have also tried many other options to boot from the Apple Site.
crwdns2934109:0crwdne2934109:0
crwdns2944067:06crwdne2944067:0
I think you've got your self stuck in an enigma problem!
Your iMac system's firmware doesn't support APFS which your SSD drive has! We know this is the case, as it did have High Sierra installed (and working?) During the OS install process the systems firmware needed to be updated but as Apple does not offer the required firmware for your system you're stuck!
crwdns2934271:0crwdnd2934271:0 Dan crwdne2934271:0
Lets quickly review a few points here:
- Your iMac does not offer Internet Recovery so trying to access it won't work. If your drive was setup with the hidden recovery partition then you could access it. But as this is a fresh drive we don't know if its present or not after all of the alternations.
- The Lock Icon implies the system has a firmware password set which is why you can't get past it.
Unless you know the password you won't be able to get past it without resetting it using the grey recovery disk the system came with.
See if this works: Forgot a Mac Firmware Password? Don’t Panic, Here’s What To Do
Reference: About the screens your Mac displays as it starts up
crwdns2934271:0crwdnd2934271:0 Dan crwdne2934271:0
I had a feeling you were going to answer first ! Dan the man has replied to all three of my questions first!
So my iMac is trash now'?
crwdns2934271:0crwdnd2934271:0 justin crwdne2934271:0
No, your iMac is not trash! But, you do need to clear the firmware password as outlined.
crwdns2934271:0crwdnd2934271:0 Dan crwdne2934271:0
Dan the MAN! i have been able to reset the firmware password, and get to the recovery screen! now i just have to mess around with it, because it says the copy i downloaded can't be verified.. i will look on my time capsule and see if i still have a back up with el capitan.. but i doubt it.. i should be able to figure it out from here! thank you to everyone who tried to help! Dan is the man here! cheers
crwdns2934271:0crwdnd2934271:0 justin crwdne2934271:0
crwdns2934273:01crwdne2934273:0