I would be very surprised if Raspbian works out-of-the-box on a Pyra. Raspbian has lots of hardware-specific tweaks for Raspberry Pi hardware. The Pyra has different hardware, and needs different tweaks.
You could (in theory) develop a version of Raspbian that runs on a Pyra - but it would be an absurd waste of time. The end result would be just the same as the Debian image we already have!
If you do struggle to install a specific application, a polite request for help on these boards will go along way.