Turnkey Linux patch for easily extending Applicances
Follow these instructions as root on a turnkey-based distribution, preferably. To create your own ISO:
apt-get update
apt-get install tklpatch git
git clone --recursive https://github.com/hexparrot/mineos-tklpatch.git
wget -O turnkey.iso <url for chosen turnkey base iso>
tklpatch turnkey.iso mineos-tklpatch