the target must have no existing user accounts.there must be no prior migration to the target computer.Migration of FileVault home directories is subject to two limitations:
#Speed up filevault decryption password#
If a user password is forgotten, the master password or recovery key may be used to decrypt the files instead. When FileVault is enabled the system invites the user to create a master password for the computer.
#Speed up filevault decryption mac os x#
The original version of FileVault was added in Mac OS X Panther to encrypt a user's home directory. For this approach to disk encryption, authorised users' information is loaded from a separate non-encrypted boot volume (partition/slice type Apple_Boot). This encrypts the entire OS X startup volume and typically includes the home directory, abandoning the disk image approach. Mac OS X Lion (10.7) and newer offer FileVault 2, which is a significant redesign.
Apple refers to this original iteration of FileVault as legacy FileVault. Mac OS X Leopard and Mac OS X Snow Leopard use more modern sparse bundle disk images which spread the data over 8 MB files (called bands) within a bundle. The operating system uses an encrypted sparse disk image (a large single file) to present a volume for the home directory. 4 Starting the OS with FileVault 2 without a user accountįileVault was introduced with Mac OS X Panther (10.3), and could only be applied to a user's home directory, not the startup volume.
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