Sharing & Permissions - My User Name Does Not Appear
Hi.
On my Mac HD my user name does not appear in the list (just system, wheel, everyone).
When I try to add myself I get a message 'The operation can't be completed because you don't have the necessary permission'.
My user account has the admin permission, but if I can't add the user how can I get the permission I require to make the changes?
The result is every time I try to delete a file I get asked to enter my password.
I've tried the sudo command fix, but this doesn't work.
Help appreciated!
iMac 27″, macOS 11.6