ode, there is no need for mach_kernel to be in the boot helper partition, you can delete it and Extensions folder also.So my Boot OS X partitions as follow:System --> Lion auto generated folder, do not touchboot --> boot file from Chameleon r1278com.apple.boot.X --> where X is a letter like R, S or P and this is where kernelcache is kept.Extra folder has:dsdt.amlorg.chameleon.Boot.plistsmbios.plistT