Chime in to the issue here.
I also have a “My Passport Ultra” (P/N: WDBMWV0020BBK-05) which was formatted as a HFS+ on the 1st day it was bought to be used mainly as a Time Machine Device and other backups.
Was working 100% until the upgrade from 10.11.5 to 10.12.4 - which it worked fine for one TM backup and then the mac stopped recognizing it and auto mounting it.
If trying to open Disk Utility while the drive is plugged in - it will continue to spin indefinitely until I pull the drive out.
Tried running WD Drive Utilities on:
- Windows: no errors
- Mac: quick test never completes
Was able to mount it on windows using HFS Explorer without any issues and copy some files out.
It seems there’s some incompatibility between latest Mac OS and this drive firmware.
Adding some more info on the matter, here’s a printout from Terminal:
/dev/disk3 (external, physical):
#: TYPE NAME SIZE IDENTIFIER
0: FDisk_partition_scheme *2.0 TB disk3
1: Apple_HFS WD2TB TimeMachine 2.0 TB disk3s1
Which clearly shows it’s been recognized by the OS - just fails to mount for some reason:
$ diskutil info /dev/disk3
Device Identifier: disk3
Device Node: /dev/disk3
Whole: Yes
Part of Whole: disk3
Device / Media Name: My Passport 0820
Volume Name: Not applicable (no file system)
Mounted: Not applicable (no file system)
File System: None
Content (IOContent): FDisk_partition_scheme
OS Can Be Installed: No
Media Type: Generic
Protocol: USB
SMART Status: Not Supported
Disk Size: 2.0 TB (2000365289472 Bytes) (exactly 3906963456 512-Byte-Units)
Device Block Size: 512 Bytes
Read-Only Media: No
Read-Only Volume: Not applicable (no file system)
Device Location: External
Removable Media: Fixed
Virtual: No
OS 9 Drivers: No
Low Level Format: Not supported
$ diskutil info /dev/disk3s1
Device Identifier: disk3s1
Device Node: /dev/disk3s1
Whole: No
Part of Whole: disk3
Volume Name: WD2TB TimeMachine
Mounted: No
Partition Type: Apple_HFS
File System Personality: Journaled HFS+
Type (Bundle): hfs
Name (User Visible): Mac OS Extended (Journaled)
Journal: Unknown (not mounted)
Owners: Disabled
OS Can Be Installed: No
Media Type: Generic
Protocol: USB
SMART Status: Not Supported
Volume UUID: 9B9E5ADA-72B6-3CE6-80E5-42569D11183E
Disk Size: 2.0 TB (2000365288448 Bytes) (exactly 3906963454 512-Byte-Units)
Device Block Size: 512 Bytes
Volume Total Space: 0 B (0 Bytes) (exactly 0 512-Byte-Units)
Volume Available Space: 0 B (0 Bytes) (exactly 0 512-Byte-Units)
Read-Only Media: No
Read-Only Volume: Not applicable (not mounted)
Device Location: External
Removable Media: Fixed
