On my MacPro Big Sur I do not have access to the internal hard drive, when attempting to add my name as a user I receive. "'This operation can't be completed because you don't have the necessary permission.
I attempted running csrutil disable but this did not solve the issue. Also went into disk utility and ran a verification on the hard drive.
Looks like I never used my hard drive since I had my MacPro I have been using iCloud.
Volume name : Macintosh HD Volume type : APFS System Volume BSD device node : disk1s5 File system : APFS (Encrypted) Connection : PCI-Express Device tree path : IODeviceTree:/PCI0@0/RP01@1C/SSD0@0/AppleS3XController Writable : No Is case-sensitive : No File system UUID : FF5BA9F1-D8CE-4418-BCD2-2E0762F5E47B Volume capacity : 121,018,208,256 Owners enabled : No Is encrypted : Yes Can be verified : Yes Can be repaired : Yes Bootable : No Journaled : No Disk number : 1 Partition number : 5 Media name : Media type : Generic Ejectable : No Solid state : Yes S.M.A.R.T. status : Not Supported Parent disks : disk1
