Need to format brand new USB hard drive, or not?

Started Dec 29, 2012 | Discussions thread
noirdesir Forum Pro • Posts: 13,561
Full Disk Encryption was introduced with Lion (not Mountain Lion)

graybalanced wrote:

However, I use Journaled for any drives that must also be used with my Macs that are not upgraded to Mountain Lion yet, because full disk encryption is so new that a Mac running an OS X older than Mountain Lion has no way of reading that drive.

And as far as I know, the full disk encryption is compatible between the two OSes.

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