mkdir -p ~/Downloads/newIso/dists/stable/extras/binary-i386 ~/Downloads/newIso/pool/extras/
sudo cp ~/Downloads/*.deb newIso/pool/extras/

cd ~/Downloads/newIso
sudo apt-ftparchive packages ./pool/extras/ | gzip -c > ./dists/stable/extras/binary-i386/Packages.gz
cd ~/Downloads/

d-i pkgsel/include string PACKAGE_NAME

sudo mkisofs -J -l -b isolinux/isolinux.bin -no-emul-boot -boot-load-size 4 -boot-info-table -z -iso-level 4 -c isolinux/isolinux.cat -o ./ubuntu-14.04-myowninstall-amd64.iso -joliet-long newIso/