diff --git a/vm-start.sh b/vm-start.sh
index 608c22b..a09a805 100755
--- a/vm-start.sh
+++ b/vm-start.sh
@@ -12,29 +12,30 @@ Script to manage virtual machine easily.
 NAME is the name of the virtual machine to use.
 
 COMMAND available
-    init                Create the conf file in conf/NAME_var.sh
-    start               Start the virtual machine using the variabes in conf/NAME_var.sh
-    start-backup        Start the virtual machine using the backup volume if it exists.
-    create              Create the virtual machine using the conf in conf/NAME_var.sh
-    backup              Create a backup file for the vm
-    restore             Restore the virtual machine using to backup file
-    suppr               Suppr all data related to the virtual machine other than the conf file.
+    init                    Create the conf file in conf/NAME_var.sh
+    start                   Start the virtual machine using the variabes in conf/NAME_var.sh
+    start-backup            Start the virtual machine using the backup volume if it exists.
+    create                  Create the virtual machine using the conf in conf/NAME_var.sh
+    backup                  Create a backup file for the vm
+    restore                 Restore the virtual machine using to backup file
+    suppr                   Suppr all data related to the virtual machine other than the conf file.
 
 COMMAND TODO
-    suppr-all           Suppr all data related to the vm even the conf file #TODO
+    suppr-all               Suppr all data related to the vm even the conf file #TODO
 
 PARAMETTER available
-    -h, --help          Print this help and exit
-    -v, --version       Print the version of this program and quit
+    -h, --help              Print this help and exit
+    -v, --version           Print the version of this program and quit
 
 OPTION available
-    nproc=<nb proc>     Def the number of proc of the vm
-    memory=<mem>        Def the qty of memory allocated to the vm
-    size=<size>         Def the size that should be allocated by create
-    uefi                Select if there will be an UEFI by default.
-                        can be either set or unset. By default is unset.
-    options=<option>    additinal options to give to qemu. By default is
-                        -display gtk -vga qxl
+    nproc=<nb proc>         Def the number of proc of the vm
+    memory=<mem>            Def the qty of memory allocated to the vm
+    size=<size>             Def the size that should be allocated by create
+    uefi                    Select if there will be an UEFI by default.
+                            can be either set or unset. By default is unset.
+    options=<option>        additinal options to give to qemu. By default is
+                            -display gtk -vga qxl
+    create_disk=<loc_disk>  Def a create disk to boot on. Is necessary for using create, or need the variable INSTALLATION_DISK_LOCATION to be set.
 "
 MAIN_LOCATION="$HOME/virtual_machine"
 OPTION="-display gtk \
@@ -89,7 +90,7 @@ start_the_vm() {
         -net nic \
         -net user"$FORWARD",hostname="$VMHOSTNAME" \
         -m "$MEMORY" \
-        -drive file="${MAIN_LOCATION}/${LOCATION}/${VMDRIVE}" \
+        -drive file="${MAIN_LOCATION}/${LOCATION}/${VMDRIVE}",index=2,id=maindrive,media=disk \
         $OPTION
 
 }
@@ -132,7 +133,8 @@ CREATE() {
 
     OPTION="$OPTION \
         -boot d \
-        -drive file=$1,media=cdrom"
+        -drive file=$1,if=none,media=cdrom,id=drive-cd1 \
+        -device ide-cd,drive=drive-cd1,id=cd1,bootindex=1"
 
     start_the_vm
 
@@ -208,13 +210,16 @@ cd "$( dirname "$( readlink -f "$0" )" )" || exit
 # Véréfie qu'il y ait bien un fichier de config pour la vm que l'on tente de démarer dans la cas contraire en génére un.
 # possibilitée de générer à nouveau le fichier de config avec vm-start nom-vm init
 
-if [ "$2" == "init" ]
-then
-    INIT "$1"
-elif [ ! -f "conf/$1-vm_var.sh" ]
+if [ ! -f "conf/$1-vm_var.sh" ]
 then
     echo "no config file found. creating one in conf/${1}-vm_var.sh"
     INIT "$1"
+
+    if [ "$2" == "init" ]
+    then
+        # Exit, it is the end of the program.
+        exit 0 
+    fi
 fi
 
 #Vérifie si l'option UEFI est set dans le fichier de config. Si oui l'ajoutte aux options.
@@ -232,6 +237,11 @@ for (( i=3; i<=$#; i++)); do
         "uefi")
             set_uefi
             ;;
+        "create_disk")
+            INSTALLATION_DISK_LOCATION="${!i#*=}"
+            echo "${!i#*=}"
+            echo "${INSTALLATION_DISK_LOCATION}"
+            ;;
     esac
 done
 
@@ -261,12 +271,11 @@ case "$2" in
         ;;
     "create")
         echo "creating VM"
-        if [ $# -ge 3 ]
+        if [ ! "${INSTALLATION_DISK_LOCATION}" == "" ]
         then
-            echo "using image disk $3"
-            CREATE "$3"
+            echo "using image disk ${INSTALLATION_DISK_LOCATION}"
+            CREATE "${INSTALLATION_DISK_LOCATION}"
         else
-            echo "$#"
             echo "Error, no image defined." >&2
         fi
         ;;
@@ -274,7 +283,11 @@ case "$2" in
         echo "suppressing all data of the vm $1"
         SUPPRESS "$1"
         ;;
-    "*")
+    "init")
+        echo "Init volume $1"
+        INIT "$1"
+        ;;
+    *)
         echo "commande $2 inconnue" >&2
         HELP
 esac