try -v -x UseKernelCache=No DSDT=hd(0,3)/Extra/dsdtpatched.aml
When I select the booting system i use the command
and when the error appears, i can see in text text from the KP that is in the booting command.
why 0,3 ? cause EFI hidden is 0,1 then Lion no dsdt is 0,2 so lion with dsdt is.. 0,3
also the capitalization maters.