I have an iMac that I run booted off on an external SSD. I use the internal HDD for storage.
However, sometime in the last month or so, the permissions changed on the internal disk.
I open up info on it, but when I go to change the privileges, even though it says I have Read & Write privileges, I get the following error:
"The operation cannot be completed because you don't have the necessary permission."
I've tried to do the Disk Utility first aid stuff that I know about, but nothing has worked.
What do I need to do? There is stuff there that I'd like to delete, but can't seem to be able to.
EDIT: This is on Mac OS 11.0 Big Sur Beta