"Ghost Volume" Showing Up in Boot Picker

[Project 2501]

I apologize if this has been answered elsewhere, but my keyword searches of the forums haven't turned up the answer.

 

I finally decided to upgrade MacOS by doing a clean install, but being overly cautious, I decided to install on an external drive first, setup, and test it before cloning it back to my boot drive. To avoid confusion, I named the drive "Destination" and cloned a fresh install of Catalina (yes, I know... it's not all that new, but I'd like to stick to OSX 10 a little while longer). The idea is to test it out and if something really messes up the test system, I can just re-clone the fresh install to the test drive.

 

However, when I renamed the drive "Test", the old name "Destination" appears alongside the new name in OC's boot picker. "Destination" is not bootable (it gives an error... can't remember what it was), but "Test" is boots as expected. I tried choosing "Test" as the startup disk and using Disk Utility First Aid. Neither has solved the problem.

 

Since I can't hide specific volumes in OC, I need a way to get rid of the ghost volume.

 

Any help would be appreciated.

 

 

[Slice]

open Terminal.app and enter the command

diskutil list

[Project 2501]

/dev/disk0 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *500.1 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:                 Apple_APFS Container disk2         499.9 GB   disk0s2

/dev/disk1 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *500.1 GB   disk1
   1:           Windows Recovery                         554.7 MB   disk1s1
   2:                        EFI NO NAME                 104.9 MB   disk1s2
   3:         Microsoft Reserved                         16.8 MB    disk1s3
   4:       Microsoft Basic Data Win10                   499.4 GB   disk1s4

/dev/disk2 (synthesized):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      APFS Container Scheme -                      +499.9 GB   disk2
                                 Physical Store disk0s2
   1:                APFS Volume Minami                  474.9 GB   disk2s1
   2:                APFS Volume PreBoot                 28.9 MB    disk2s2
   3:                APFS Volume Recovery                510.6 MB   disk2s3
   4:                APFS Volume VM                      2.1 GB     disk2s4

/dev/disk3 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *640.1 GB   disk3
   1:                        EFI EFI                     209.7 MB   disk3s1
   2:       Microsoft Basic Data Matsuri                 639.8 GB   disk3s2

/dev/disk4 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *6.0 TB     disk4
   1:                        EFI EFI                     209.7 MB   disk4s1
   2:                  Apple_HFS Akira                   6.0 TB     disk4s2

/dev/disk5 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *4.0 TB     disk5
   1:                        EFI EFI                     209.7 MB   disk5s1
   2:                  Apple_HFS Alma                    4.0 TB     disk5s2

/dev/disk6 (external, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *2.0 TB     disk6
   1:                        EFI EFI                     209.7 MB   disk6s1
   2:                 Apple_APFS Container disk8         500.4 GB   disk6s2
   3:       Microsoft Basic Data exFAT                   1.5 TB     disk6s3

/dev/disk7 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:        CD_partition_scheme                        *1.1 MB     disk7
   1:     Apple_partition_scheme                         925.7 KB   disk7s1
   2:        Apple_partition_map                         17.9 KB    disk7s1s1
   3:                  Apple_HFS Cipher                  176.1 KB   disk7s1s2

/dev/disk8 (synthesized):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      APFS Container Scheme -                      +500.4 GB   disk8
                                 Physical Store disk6s2
   1:                APFS Volume Test - Data             53.3 GB    disk8s1
   2:                APFS Volume PreBoot                 111.3 MB   disk8s2
   3:                APFS Volume Recovery                1.1 GB     disk8s3
   4:                APFS Volume VM                      17.2 GB    disk8s4
   5:                APFS Volume Test                    11.2 GB    disk8s5

The ghost volume "Destination" doesn't appear in diskutil list. It is also not listed under /Volumes and is not visible in Finder. The only time I see it is in the OC boot picker. I guess it's easy enough to erase and re-clone, taking care not the rename the volume, but I'd like to be able to fix the problem without erasing the disk.

 

Don't know if this is relevant, but please note that disk6 (exFAT) and disk8 (Test) are on the same physical disk (SATA HDD in a USB 3 dock). However, I have another external disk (USB 3, not docked) that contains my fresh OS install has the same partitioning scheme; I have been able to rename that volume without leaving behind a "ghost volume".

Edited August 13, 2023 by Project 2501
Typos