Apple Event: May 7th at 7 am PT
hi all,
just purchased a WD 2TB My Passport Ultra.
I am running mac book pro 10.6.8 mac os x
just tried applications, utilities, disk utility, selected my my passport, and tried to erase (format disc for a mac) using mac os extended (journaled) but it won't work " volume erase failed " could not unmount disc.
am i missing something or is it the external hard drive at fault.
thanks for your time
Jonyfoz
could not unmount disk
Usually caused by having something Open on the disk.
Try selecting the disk and dragging it to the trash or clicking the Eject Icon in a Finder window. It may tell you the name of a file that is in use.
Thanks to everyone including but not limited to: RonE321, Dan562, and thewomandirector. The solution to this problem was indeed (1) to download the WD utility first (http://support.wdc.com/product/download.asp?groupid=217&sid=157&lang=en); (2) erase the entire volume; and (3) select the same volume as an available disk for Time Machine backup when prompted. So far, so good, but still in "preparing backup" phase. Will update as soon as I have a complete backup. Thank you all again. Saved me a lot of stress and $100.00.
Update 3.5.15 Using WD Utility HFS+J - not disk utility - and all continues well!
TheWoman,
Glad that is working for you. My disk is also still working fine now after formatting with the WD drive utility. For some reason formatting this particular drive with Apple's disk utility just caused a variety of problems.
Ron
WD 2TB My Passport Ultra on mac pro not working
