SLI use the CMake construction system. So, cmake has to be installed if it is not ( sudo slapt-get -u && sudo slapt-get -i cmake)

The installation procedure is:
1) download the sources
git clone https://github.com/djemos/slackel-live-installer.git
2) cd sli
3) sh maketxz.sh
4) Install the package
sudo spkg sli-1.2.6-x86_64-1dj.txz or sudo installpkg sli-1.2.6-x86_64-1dj.txz
