Apple Lion Recovery Update

So here's the solution (assuming you don't have a Recovery HD on your internal drive): To change the Recovery HD to be apple_boot (hidden) do this (assuming you've already cloned over the Recovery HD using Disk Utility from an external drive into a internal drive partition of at least 650 MB): Get your detailed information on your setup from Terminal: sudo gpt -r show disk0 diskutil list To change a GUID partition type to Apple_Boot the UUID is 426F6F74-0000-11AA-AA11-00306543ECAC First Remove: sudo gpt remove -i 3 -b 973092480 -s 2894232 -t 48465300-0000-11AA-AA11-00306543ECAC disk0 Then Add: sudo gpt add -i 3 -b 973092480 -s 2894232 -t 426F6F74-0000-11AA-AA11-00306543ECAC disk0 Problem solved!

If you have an existing Recovery Partition it can comfortably find, I think it will simply update it with what needs to be updated. Otherwise it tries to create a new Recovery Partition, somewhat along the fashion of Recovery Disk Assistant. It has difficulty understanding custom partitioning schemes: see my Troubleshooting note wrt TTP eDrives.