Mac OS X 10.7 Recovery OS used too soon after enabling FiileVault 2

For reference only

http://pastebin.com/Jy6RvBXf

If you use Recovery OS Disk Utility, or any comparable utility, too soon after enabling FileVault 2 — before entering a passphrase at the EFI loginwindow — then without a prompt to unlock the volume, an attempt to verify or repair may produce a report such as the one below.

Verifying volume “a”

Checking storage systemChecking volume.

disk1: Scan for Volume Headers

Invalid Volume Header @ 0: incorrect block type

Invalid Volume Header @ 58855587328: invalid field value

disk1 is not a CoreStorage volume

Error: Storage system verify or repair failed.

Also, the required startup volume may not be listed for startup purposes.

In this situation: do not be alarmed by the report.

Restart the system. At the EFI loginwindow, which should appear within seconds of the startup chime, enter the passphrase.