I have a WD Mybook Studio 500gb that will not mount. I've tried every possible option in Disk Utility and it see the drive (unlike finder), but won't mount the partition. I also tried plugging it in to a PC and again W10 didn't see the drive, but I could perform diagnostics on it via WD's tool (but no fix in sight).
I did some digging with with testdisk and the data is intact, no errors, I can see the file structure on the data partition etc but the partition map/table has tons of errors and I believe this is the cause of the problem - the data is there but the computer can't access it due to a corrupt partition map.
Here's what I get in terminal when looking at the drive info:
/dev/disk0 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *256.1 GB disk0 1: EFI EFI 209.7 MB disk0s1 2: Apple_HFS Internal HD 255.2 GB disk0s2 3: Apple_Boot Recovery HD 650.0 MB disk0s3 /dev/disk2 #: TYPE NAME SIZE IDENTIFIER 0: Apple_partition_scheme *500.1 GB disk2 1: Apple_partition_map 32.3 KB disk2s1 2: Apple_HFS General DATA 500.0 GB disk2s3
And the second part for the drive in question:
$ diskutil info /dev/disk2s3 Device Identifier: disk2s3 Device Node: /dev/disk2s3 Part of Whole: disk2 Device / Media Name: Apple_HFS_Untitled_1 Volume Name: General DATA Escaped with Unicode: General%FF%FE%20%00DATA Mounted: No File System Personality: HFS+ Type (Bundle): hfs Name (User Visible): Mac OS Extended Journal: Unknown (not mounted) Owners: Disabled Partition Type: Apple_HFS OS Can Be Installed: No Media Type: Generic Protocol: FireWire SMART Status: Not Supported Volume UUID: 88071423-C35F-3BAA-BEE6-E3A3B3D9948F Total Size: 500.0 GB (499973603328 Bytes) (exactly 976510944 512-Byte-Units) Volume Free Space: 0 B (0 Bytes) (exactly 0 512-Byte-Units) Device Block Size: 512 Bytes Read-Only Media: No Read-Only Volume: Not applicable (not mounted) Ejectable: Yes Whole: No Internal: No
Can anyone help with advice on how to rebuild the apple partition map? I think this can be done with testdisk but I can't seem to fumble my way to the correct answer? by the way, I need to access the data on the drive, not just reformat and repurpose the hardware.