Attempts to erase 'APFS volume group' (or each volume) results in internal error (-69623)

nomdegar wrote:

My APFS volume group named macOS SSD have become corrupted and I wish to start over again with a newly wiped drive. Attempts at deleting APFS Volume "macOS SSDD" or "macOS SSDD - Data" or both as a volume group are always met with the error:

"Deleting APFS Volume “macOS SSD - Data”

Deleting APFS Volume from its APFS Container

Unmounting disk2s1

Erasing any xART session referenced by 954087A7-D98A-4AB2-9D5C-769660303942

Deleting Volume

An internal error has occurred. : (-69623)

Operation failed... "

Apple Support seems to think it must be a hardware issue. My thinking is that if I could somehow erase the drive (some 'nuclear option' in terminal) and take it back to its original condition then I could reinstall it all over again. Does anyone know my options here?

If you are booted to drive you can not delete Volumes you are booted to...

This would be done from Recovery/Internet Recovery Disk Utility.app>View>Show All Devices for the big picture.

However If your goal is to erase...

ref: Erase your Mac - Apple Support

or

What to do before you sell, give away, or trade in your Mac

Is this a T2 Mac or an Apple Silicon Mac? If so, I would go the erase all content and settings route. If not, Are you attempting this from Internet recovery? That’s what I would try next.