I woke up the other morning to a prohibitory icon (circle with a line through it) on my iMac. I believe this was due to a failed Catalina update but I am not sure. I had it set to auto-update.
I am getting some strange results. I have booted into recovery mode and have a bootable flash drive as well as a 2T external drive that will also boot. I can not mount the main partition disk0s2. When I select that and click 'mount' it does nothing.
When I first boot into recovery mode then go to Disk Utility, there are a couple drives that are in RED. Then after I 'ignore' the fix that will delete all my data, they turn black (the normal text color).
I tried to continue the installation and I have gotten a few different issues tahat all amount to not being able to select my main drive.
The weirdest thing is that this is a 3T drive but in Disk Utility it is showing that it's 123.33GB.
Here are the results of running:
gpt -show /dev/disk0
Any help would be greatly appreciated.