Add syslinux executable test

init.sh

@@ -9,6 +9,7 @@ OPTIND=1
 DEBIAN_VERSION="8.6.0"
 DEBIAN_ARCH="amd64"
 BOOT_TYPE="efi64"
+SYSLINUX_EXE=`witch syslinux`
 SYSLINUX_FILES="menu.c32 vesamenu.c32 libutil.c32 libcom32.c32"
 SYSLINUX_BIOS_FILES=""
 SYSLINUX_EFI_FILES="ldlinux.e64"
@@ -52,6 +53,13 @@ create_dir(){
     if [ ! -d $1 ]; then mkdir -p $1; fi
 }
 
+#Stop script if syslinux is not installed
+if [ ! -f $SYSLINUX_EXE]
+then
+    echo "Syslinux not found, script can't continue…"
+    exit 1
+fi
+
 # Arguments ...
 while getopts "ha:bd:" opt; do
     case "$opt" in