Hello,
I'm really hoping someone can help me. I am having the same issues, but in case there is something I did different, I'm going to briefly go through what is going on with my WD Passport.
I've had this external HD for about a year and a half (maybe a little more, but less than 2 years). It has been working fine since the day I started using it. I use it with my Macbook Air 13 inch (mid 2013). About 4 months ago I updated to Yosemite and I am currently running it. When I updated, the hard drive worked normally, so it wasn't that it seems. One thing might be an issue, I used it to copy files over to my iMac, which is not running Yosemite, once I did that, I put the hard drive in my case and traveled to Japan, where I am currently. I hadn't plugged it in to my Air since then. Suddenly last night when I decided to open my midterm to work on it from my HD, I received the error: The disk you inserted is not supported, with the 3 options "initialize, ignore, eject". The light on my HD was blinking and humming. It will not mount, I cannot see it in finder no matter how I manipulate it.
I decided to eject, restart and plug it in again. The same error message popped up. So I hit initialize and it brought me to disk utility. My HD shows up as disk2s10, which is not what I had named it. I hit verify and after that failed I clicked Repair as it told me to. This is the history from repair disk:
Verifying volume “disk2s10”Verifying file system.Checking Journaled HFS Plus volume.The volume could not be verified completely.File system check exit code is 8.Error: This disk needs to be repaired. Click Repair Disk.
Verify and Repair volume “disk2s10”Repairing file system.Checking Journaled HFS Plus volume.The volume could not be verified completely.File system check exit code is 8.Updating boot support partitions for the volume as required.Error: Disk Utility can’t repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed-up files.
Here I am now, worried that I have lost vital information. I am kind of in a jam right now and can't see if it works on other computers, or even my iMac back home. I will not be able to see if it works on my iMac any time soon either. I also downloaded the extremely useless disk utility from the WD website and it said there was an error, giving me ZERO options to fix/ troubleshoot the problem. It didn't even identify what was wrong, it just said diagnostics failed or whatever and I deleted the program out of sheer rage. I also attempted to update the firmware, which it said it did successfully, but did nothing. I've rebooted several times with it connected and disconnected and nothing is working. I really hope someone can help because I am screwed if I cannot recover my files.
Thanks in advance.