File Vault 2 and embedded 'Recovery HD' disk are new additions to OS X in Lion release. A fresh OS X Lion installation creates 'Recovery HD' by live re-partitioning 'Macintosh HD'. The recovery disk is 650MB in size (as of 10.7.2), of partition type Apple_Boot , and therefore, will be hidden during normal usage by OS X user interface.

Repairing a FileVault-protected Home folder - The X Lab Under Mac OS X 10.3 or Mac OS X 10.4, follow the instructions in the AppleCare® Knowledge Base document "Mac OS X 10.3, 10.4: FileVault - How to verify or repair a home directory image." Note that attempting to use this procedure under Mac OS X 10.5 will result in an Operation not supported on socket alert when attempting to mount the disk image. 10.7 : Enable Recovery HD after restore - Mac OS X Hints File Vault 2 and embedded 'Recovery HD' disk are new additions to OS X in Lion release. A fresh OS X Lion installation creates 'Recovery HD' by live re-partitioning 'Macintosh HD'. The recovery disk is 650MB in size (as of 10.7.2), of partition type Apple_Boot , and therefore, will be hidden during normal usage by OS X user interface.

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