Lion's FileVault Does Not Support Bootcamp and External Boot Disks

Fri 05 August 2011 Category: Uncategorized

Read the comments as they may provide useful information for your particular situation

I boot my iMac from an external FW800 SSD. I found out that it is impossible to encrypt this disk using the new FileVault as part of Lion.

no filevault

Furthermore, I also found out that if you have a disk with a Bootcamp partition FileVault will also refuse to start the encryption process. I'm not trying to encrypt the Bootcamp volume, just the bootable Mac OS X Lion installation.

no encryption with bootcamp

It may be advised to stay away from Lion if you need a setup similar to this one and also need disk encryption.

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