To download latest Beta 2 version for FBML2

sudo wget https://github.com/jstefanop/bfgminer/releases/download/bfgminer-5.4.2-futurebit2-beta2/bfgminer_5.4.2-futurebit2_linux_armv6.tar.gz

Description :

This update fixes a few bugs and adds better support for multiple sticks on a hub. The update is recommended for everyone since it adds much needed low level restart logic. Anytime your sticks go dead for whatever reason bfgminer will automatically restart them. This works a majority of the time as long as the ASIC has not hard-locked which would require a complete un-plug/re-plug. This will not fix any issues related to your USB hub not providing adequate power to the USB miner.

Watch latest release here :
https://github.com/jstefanop/bfgminer/releases/