# Build Custom Arm Kernel
The Ability Edge only works with Ubuntu at this time. A custom kernel is required to access the Infineon TPM chip. Infineon provids a procedure to create a Raspian Kernel here. The zip file contains a Doc folder with a PDF with the detailed instructions for Raspian. The procedure was used as a template to build the customer Ubuntu kernel provided by Ability. ABB will provide updated instructions in a future release.