How to install and compile?
use SSH and log in as root user to your miner, default password is baikal.
cd ~
sudo apt-get install git
git clone https://github.com/cod3gen/sgminer-baikal.git
cd sgminer-baikal
nano driver-baikal.h DO CHANGES AS ABOVE. If you have Giant N, no need to do changes.
autoreconf -fi && ./configure && make
cp /opt/scripta/bin/sgminer /opt/scripta/bin/sgminer_ORG
This process will take about 15min.

When its done you need to:

screen -x sgminer
ctrl+c to stop screen session
cp sgminer /opt/scripta/bin/sgminer Confirm overwrite. If you cannot overwrite, you need to stop screen session again and retry copy.
After a while you can reconnect to screen session(screen -x sgminer). When you do not need to see screen session any more, use ctrl+a+d keys to dettach!

do you done step above with bold blue color?