The Raspberry Pi and Beaglebone mini PCs are great for miner management. Under kat step by step instructions for installing cgminer on these devices.
I want to say right away that for normal operation of the Raspberry Pi, it is very desirable to have a high-quality CD-card. Class 10 with high read / write speed is desirable. This applies to all Raspberry Pi models, including the Raspberry Pi 2. Beaglebone uses internal memory to work, so any card with a size of 2-4GB is suitable for these devices.
Consider the installation using the example of Raspberry Pi. For Beaglebone, the only difference will be in the way the data is written from the card.