EmuStation4Zero_fromBinary.sh

# on your pi, Press f4 if you have emulationstation running or kill EmulationStation if running ssh

# Get binary zip file
wget http://www.sudomod.com/forum/download/file.php?id=5057 -O es.zip

# Extract zip file
unzip es.zip

# Backup original EmulationStation
sudo mv "/opt/retropie/supplementary/emulationstation/emulationstation" "/opt/retropie/supplimentary/emulationstation/emulationstation_bkp"

# Copy new binary to destination
sudo cp "emulationstation" "/opt/retropie/supplementary/emulationstation/emulationstation"

# Reboot 
sudo reboot

EmuStation4Zero_fromSource.sh

# note the pid of emulationstation
top
# press q to exit

# Kill emulation station using pid noted above
kill PID

# To build on pi zero we need more ram. Get root previleges to turn swap on
sudo su
# We define a way to increase the Swap space.
function rpSwap() {
    local command=$1
    local swapfile="$__swapdir/swap"
    case $command in
        on)
            rpSwap off
            local memory=$(free -t -m | awk '/^Total:/{print $2}')
            local needed=$2
            local size=$((needed - memory))
            mkdir -p "$__swapdir/"
            if [[ $size -ge 0 ]]; then
                echo "Adding $size MB of additional swap"
                fallocate -l ${size}M "$swapfile"
                chmod 600 "$swapfile"
                mkswap "$swapfile"
                swapon "$swapfile"
            fi
            ;;
	off)
            echo "Removing additional swap"
            swapoff "$swapfile" 2>/dev/null
            rm -f "$swapfile"
            ;;
    esac
}
# Increase Swap space
rpSwap on 512
# Exit from superuser shell
exit

# Clone Repository
git clone --depth 1 --recurse-submodules https://github.com/hex007/EmulationStation

# Build EmulationStation
cd EmulationStation
cmake ./
make
# This will take a long time ~ 1.5-2 Hrs

# Once build is successful, bkp original ES binary and replace with one just built
sudo mv "/opt/retropie/supplementary/emulationstation/emulationstation" "/opt/retropie/supplimentary/emulationstation/emulationstation_bkp"
sudo cp "emulationstation" "/opt/retropie/supplementary/emulationstation/emulationstation"

# Turn Swap off
sudo su
rpSwap off

# Reboot 
sudo reboot

EmuStation4Zero_restore.sh

# If you would like to restore your binary to stock EmulationStation
sudo cp "/opt/retropie/supplimentary/emulationstation/emulationstation_bkp" "/opt/retropie/supplementary/emulationstation/emulationstation"