I’m running OSX 10.9.5 on a MB Pro Retna and trying to perform a routine time machine backup to my 2TB Passport. It has worked flawlessly until today (my last backup was 12 days ago) but now my Mac can’t find it (I do see it in the Disk Utility though) in Finder nor can Time Machine perform a backup. It powers on when I plug it in, but no backup process can start.
Thank you. Here is the output from the diskutulity app, it looks fine to me:
Verify:
Verifying partition map for “WD My Passport 07A8 Media” Checking prerequisitesChecking the partition listChecking for an EFI system partitionChecking the EFI system partition’s sizeChecking the EFI system partition’s file systemChecking all HFS data partition loader spacesChecking booter partitionsChecking Core Storage Physical Volume partitionsThe partition map appears to be OK
Repair:
Verifying partition map for “WD My Passport 07A8 Media” Checking prerequisitesChecking the partition listChecking for an EFI system partitionChecking the EFI system partition’s sizeChecking the EFI system partition’s file systemChecking all HFS data partition loader spacesChecking booter partitionsChecking Core Storage Physical Volume partitionsThe partition map appears to be OK
Verifying and repairing partition map for “WD My Passport 07A8 Media” Checking prerequisitesChecking the partition listAdjusting partition map to fit whole disk as requiredChecking for an EFI system partitionChecking the EFI system partition’s sizeChecking the EFI system partition’s file systemChecking all HFS data partition loader spacesChecking booter partitionsReviewing boot support loadersChecking Core Storage Physical Volume partitionsUpdating Windows boot.ini files as requiredThe partition map appears to be OK
I am have a similar problem with My Passport Edge for Mac. I recently updated to OS X Yosemite (v. 10.10) and can no longer see my external USB HD in Finder. The device shows up in Disk Utility and trying to run the repair utility does not fix the problem. I have also downloaded latest Driver from the WD Download site.
HD was working fine prior to updating to Yosemite. Any ideas out there in the community ?