Linux on NCD/HMX
Network Computing Device's HMX model X-terminals use a R3000 processor. Linux has not been ported. However there is a | Linux on Explora project. The Explora model X-terms use a PowerPC processors. However the systems are very similar.
If you want to port Linux to the HMX, the following information will be useful :
The boot image is checksummed. To get past the CRC check, you must poke 0x20 at offset 0x1000f in Xncdhmx. For more details, see the PPC boot code in the Explora project.