Hot answers tagged external-disk
Yes: This is totally possible and you should not have any problems at all. You should consider though, that every Mac has a minimum and a maximum OS X Version which is officially supported.
Yes. Reformat and partition the HD. When you unplugged the drive, you severely damaged the directory information on the 'My Passport' partition, rendering it unusable. If there is nothing of value on the drive, this is your best bet. In addition, make sure to reformat with Mac OS Extended (Journaled) selected.
If the drive started out on Vista I'd assume it has been formatted using the NTFS filesystem. You can confirm this by selecting the drive in the Finder, right-click it and selecting "Get Info" from the menu. The Info window will list the format under General. Unfortunately on Macs by default NTFS is always mounted read-only. There are a number of options ...
Easiest way I think is to use the built in iTunes setting for choosing a library location. First make a copy of your library on your external drive Then change the settings in iTunes to reflect the new location Profit Apple also has support documents available to describe the required steps in more detail, both for Mac and Windows.
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