My iMac has a black screen with this.
what does this mean? What do I do? TIA
iMac 27″, macOS 10.15
Startup in macOS Recovery, erase and reformat the drive,
as per > Use Disk Utility to erase an Intel-based Mac - Apple Support
Then reinstall the macOS,
Follow the steps at > If your Mac starts up to a circle with a line through it - Apple Support
Try highlight the grayed out APFS Physical Storage in Disk Utility and see if you can Repair it.
To answer your last question, yes formatting the internal drive will erase everything on it.
Do you have a Time Machine or some other type backup to restore from?
If not, then sadly you may have already lost everything.
It’s impossible to say for sure.
First guess, a failing or failed hard drive.
Second guess, someone made a fatal mistake.
Best bet at this point, is to schedule a service appointment at your local Apple Store or AASP.
Try starting up in Safe Mode followed by a normal restart to see if that helps.
Thank you! I don’t think I have the correct images/containers
Will I lose everything on my computer?
Any idea what causes this to happen?
Truly appreciate your help! A trip to the Apple Store will happen on Monday! Enjoy your weekend!
You're welcome. Please let us know how that goes.
I will. Not sure what happened…was working fine yesterday, and woke to this problem. Thanks again
Startup issue. PLEASE HELP
