can't migrate Ubuntu-Katoolind.vhd to ESXi

[bobsyourmom]

Hi there,
I was able to convert the 4 .vhd windows images for use in ESXi.
But I couldn't convert Ubuntu-Katoolind.vhd - I only get up to a grub boot and it can't find anything to boot.
If you have any tips on getting your Ubuntu image converted to ESXi that would be greatly appreciated.
Or if you have instructions on how you're using the Ubuntu image perhaps I can replicate it on a fresh build?
Thanks.