# Get required packages
sudo apt-get install kernel-package build-essential libncurses-dev debhelper

# Get kernel sources (one that has longterm support) and save it to /usr/src.
sudo wget https://www.kernel.org/pub/linux/kernel/v3.x/linux-3.12.35.tar.xz -O /usr/src/linux-3.12.35.tar.xz

# Untar the kernel source..
cd /usr/src
sudo tar xvf linux-3.12.35.tar.xz

# Make menuconfig. Make any changes you want. usually you can leave it as the default. Exit and save the config.
cd linux-3.12.35/
sudo make menuconfig

# Make the kernel. Change to root here else it'll fail..
sudo -s
# Grab a drink.. depending on your machine this will take a while..
time fakeroot make-kpkg -j3 --initrd --revision=3.12.35 --append-to-version=-amd64 kernel_image kernel_headers kernel_source

# Install the newly built packages.
# Go back one directory..
cd ../
dpkg -i linux-*-3.12.35-*.deb
reboot

# Once rebooted ensure you have the other packages required to build installed.
sudo apt-get install libdigest-sha-perl libproc-processtable-perl

# Download the files for the driver from the Blackgold site.
wget -U "Mozilla/5.0 (X11; Linux i686; rv:28.0) Gecko/20100101 Firefox/28.0" "http://home.btconnect.com/blackgold/Downloads/BGT3xxx%20Linux_Source_Release_Pack_V1-0.rar" -O bgdrivers.rar

# Install rar.. Requires non-free repo add it to /etc/apt/sources.list
sudo nano /etc/apt/sources.list
# your sources.list should look like this.
# ===========================
deb http://ftp.uk.debian.org/debian/ wheezy main contrib non-free
deb-src http://ftp.uk.debian.org/debian/ wheezy main contrib

deb http://security.debian.org/ wheezy/updates main contrib non-free
deb-src http://security.debian.org/ wheezy/updates main contrib

# wheezy-updates, previously known as 'volatile'
deb http://ftp.uk.debian.org/debian/ wheezy-updates main contrib non-free
deb-src http://ftp.uk.debian.org/debian/ wheezy-updates main contrib
#=============================
sudo apt-get update
sudo apt-get install unzip rar

# Make a dir for the unrar-ed drivers..
mkdir "BGT3xxx Linux_Source_Release_Pack_V1-0"
cd "BGT3xxx Linux_Source_Release_Pack_V1-0"

# unrar them (make sure you're in the "BGT3xxx Linux_Source_Release_Pack_V1-0" directory and the bgdrivers.rar is in one directory up (cd ../ to check).
rar x ../bgdrivers.rar ./

# Download the fix zip from AVforums..
wget "https://www.avforums.com/attachments/bgt3xxx-zip.507217/" -O ~/BGT3xxx.zip

# Unzip in current directory (you should still be in "BGT3xxx Linux_Source_Release_Pack_V1-0")
unzip ~/BGT3xxx.zip

# You should see a list of files extracted.
# Now run MakeBGT3xxx.sh
./MakeBGT3xxx.sh 

# With any luck you should have no issues building..