Quickest way to get up and running on fresh ubuntu:
Open terminal:
sudo apt update && sudo apt full-upgrade -y
sudo add-apt-repository ppa:bitcoin/bitcoin
sudo apt update
sudo apt install build-essential libtool autotools-dev autoconf libssl-dev automake pkg-config git libboost-all-dev libminiupnpc-dev libgmp-dev libqt4-dev libprotobuf-dev protobuf-compiler libprotoc-dev libqrencode-dev ccache gcc libevent-dev miniupnpc libdb4.8-dev libdb4.8++-dev libunwind-dev
git clone https://github.com/gperftools/gperftools
git clone https://github.com/pallas1/Cryptonite
cd gperftools/
./autogen.sh
./configure CFLAGS="-O3 -march=native" CXXFLAGS="-O3 -march=native" --prefix=/usr
make -j4
sudo make install
cd ..
cd Cryptonite
./autogen.sh
./configure CFLAGS="-O3 -march=native -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free" CXXFLAGS="-O3 -march=native -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free" CRYPTO_LIBS="-lcrypto -ltcmalloc"
make -j4
cd src
sudo strip cryptonited
sudo cp cryptonited /usr/bin
sudo cp cryptonite-cli /usr/bin
cd qt
sudo cp cryptonite-qt /usr/bin
That's it, close and open a new terminal. Type cryptonite-qt to start the wallet.
Right click icon and add to dash / lock to launcher.
Open file explorer and do ctrl + h to view hidden folders.
.cryptonite is the working directory that contains your wallet file and where you can put a Cryptonite.conf file if needed.