UNSOLVED WinPE boot.wim not loading

[MattM]

I’ve managed to add a WinPE boot menu item to my boot menu, I’ve put my WinPE files in a folder (/var/www/fog/winpe/) containing x86 and amd64 versions and my parameters for my boot menu item are below. I keep getting the error ‘could not patch wim’ when trying to boot winpe.

cpuid --ext 29 && set arch amd64 || set arch x86
kernel http://${fog-ip}/fog/boot/wimboot rawbcd
initrd http://${fog-ip}/fog/winpe/${arch}/media/bootmgr.exe bootmgr.exe
initrd http://${fog-ip}/fog/winpe/${arch}/media/boot/bcd BCD
initrd http://${fog-ip}/fog/winpe/${arch}/media/boot/boot.sdi boot.sdi
initrd -n boot.wim http://${fog-ip}/fog/winpe/${arch}/winpe.wim boot.wim

Am I doing something stupidly wrong, as I’ve only started playing with FOG this morning?