0 Comments Before continuing, make sure that you have a backup of any files that you want to keep.Then select Disk Utility from the Utilities window and click Continue. Any other solution, tip, idea My device is anyway under warranty, could wd. Format Wd Passport For Mac CouldnT Unmount Disk.
I googled it and I try with Terminal.app, restart the system cmd+R and Utility Disk but everything didn’t solve it. If i try to erase or make Partition I get the following message: Unable to write to the last block of the device. 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. Hallo everyone, since two days My Passport for Mac cannot be read on my Mac OS X 10.9.5. 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
Here is the output from the diskutulity app, it looks fine to me:
