Macintosh HD Disk Disappeared
Okay, so, I was resetting my iMac to factory settings exactly how I have before, but when I erased my disk (Macintosh HD) and attempted to reinstall Mac OS, it said it couldn’t install it. I forgot the exact error, but it was something about the disk format. I tried erasing the disk again, and then it just disappeared. I can’t locate it, and can’t download Mac OS on anything now. Is there a way to fix this?
iMac 21.5", macOS 10.14