diff --git a/files/usr/local/sbin/install_pxe_CentOS8.sh b/files/usr/local/sbin/install_pxe.sh
similarity index 77%
rename from files/usr/local/sbin/install_pxe_CentOS8.sh
rename to files/usr/local/sbin/install_pxe.sh
index 3908011..fb0ce2b 100755
--- a/files/usr/local/sbin/install_pxe_CentOS8.sh
+++ b/files/usr/local/sbin/install_pxe.sh
@@ -1,5 +1,19 @@
 #/bin/bash
 
+for PARAM in "$@"; do
+	case "$PARAM" in
+		--version=*) CENTOS_VERSION="${PARAM/*=}" ;;
+		--distrib=*) DISTRIB="${PARAM/*=}" ;;
+	esac
+done
+if [ -z "${CENTOS_VERSION}" ]; then
+	CENTOS_VERSION=8
+fi
+if [ -z "${DISTRIB}" ]; then
+	DISTRIB="CentOS"
+fi
+
+
 if ! which wget; then
 	yum install -y wget
 fi
@@ -13,8 +27,17 @@ MAC="$(ip addr show $IF | grep ether\  | awk '{print $2}' | cut -d/ -f2 | tr [A-
 DNS="$(grep nameserver /etc/resolv.conf | grep -v 127.0.0.1 | awk '{printf $2","}' | sed 's/,$//')"
 ARCH=$(uname -m | sed 's|i.86|i386|')
 
-MIRROIR=http://mirror.centos.org/centos/8/BaseOS/$ARCH/os
-#MIRROIR=http://lune.saacy.reslinger.net/repos/CentOS8/$ARCH/os
+if [ "${CENTOS_VERSION}" == "8" ]; then
+	MIRROIR=http://mirror.centos.org/centos/8/BaseOS/$ARCH/os
+	#MIRROIR=http://lune.saacy.reslinger.net/repos/CentOS8/$ARCH/os
+elif [ "${CENTOS_VERSION}" == "7" ]; then
+	#MIRROIR=http://centos.mirrors.ovh.net/ftp.centos.org/7/os/$ARCH
+	MIRROIR=http://mirror.centos.org/centos/7/os/$ARCH
+	#MIRROIR=http://lune.saacy.reslinger.net/repos/CentOS7/$ARCH/os
+else
+	echo "Version ${CENTOS_VERSION} non reconnue" >&2
+	exit 1
+fi
 #DESKTOP=desktop
 INST_OPTIONS="lang=fr_FR keymap=fr-latin9 panic=1 ks.sendsn ks.sendmac inst.sshd=1 net.ifnames=0 biosdevname=0 $DESKTOP"
 INST_OPTIONS="${INST_OPTIONS} inst.vnc inst.vncpassword=SDFGHJKL"
@@ -63,14 +86,14 @@ if [ -f /boot/grub2/grub.cfg ]; then
 	fi
 
 	cat >> /etc/grub.d/40_custom <<EOF
-menuentry 'CentOS 8 Install (PXE)' --unrestricted {
+menuentry 'CentOS ${CENTOS_VERSION} Install (PXE)' --unrestricted {
         set root='${UUID_BOOT_DISK}'
         if [ x\$feature_platform_search_hint = xy ]; then
           search --no-floppy --fs-uuid --set=root --hint='${UUID_BOOT_DISK}' ${BOOT_UUID}
         else
           search --no-floppy --fs-uuid --set=root ${BOOT_UUID}
         fi
-        linux $PARTBOOT/vmlinuz ${INST_OPTIONS} inst.ks=http://boot.reslinger.net/ks8.cfg inst.stage2=$MIRROIR ${CONSOLE}
+        linux $PARTBOOT/vmlinuz ${INST_OPTIONS} inst.ks=http://boot.reslinger.net/ks${CENTOS_VERSION}.cfg inst.stage2=$MIRROIR ${CONSOLE}
         initrd  $PARTBOOT/initrd.img
 }
 EOF
@@ -80,12 +103,12 @@ EOF
 		CONFDIR=/boot/grub2
 	fi
 	grub2-mkconfig --output="${CONFDIR}"/grub.cfg
-	grub2-reboot 'CentOS 8 Install (PXE)'
+	grub2-reboot 'CentOS ${CENTOS_VERSION} Install (PXE)'
 elif [ -f /boot/grub/grub.conf ]; then
 	cat >> /boot/grub/grub.conf <<EOF
-title CentOS 8 Install (PXE)
+title CentOS ${CENTOS_VERSION} Install (PXE)
         root (hd0,0)
-        kernel $PARTBOOT/vmlinuz ${INST_OPTIONS} inst.ks=http://boot.reslinger.net/ks8.cfg inst.stage2=$MIRROIR ${CONSOLE}
+        kernel $PARTBOOT/vmlinuz ${INST_OPTIONS} inst.ks=http://boot.reslinger.net/ks${CENTOS_VERSION}.cfg inst.stage2=$MIRROIR ${CONSOLE}
         initrd $PARTBOOT/initrd.img
 EOF
 	NB="$(grep -Ev '^($| *#)' /boot/grub/grub.conf | grep -c title)"
diff --git a/files/usr/local/sbin/install_pxe_CentOS7.sh b/files/usr/local/sbin/install_pxe_CentOS7.sh
deleted file mode 100755
index f812ab7..0000000
--- a/files/usr/local/sbin/install_pxe_CentOS7.sh
+++ /dev/null
@@ -1,103 +0,0 @@
-#/bin/bash
-
-if ! which wget; then
-	yum install -y wget
-fi
-
-IF="$(ip route show | grep ^default | sed 's/.* dev \([^ ]*\) *.*/\1/' | sort -u)"
-IP="$(ip addr show $IF | grep inet\  | awk '{print $2}' | cut -d/ -f1)"
-PREFIX="$(ip addr show $IF | grep inet\  | awk '{print $2}' | cut -d/ -f2)"
-MASK="$(ipcalc -m $IP/$PREFIX | cut -d= -f2)"
-GW="$(ip route show | grep ^default | sed 's/.* via \([^ ]*\) *.*/\1/' | sort -u)"
-MAC="$(ip addr show $IF | grep ether\  | awk '{print $2}' | cut -d/ -f2 | tr [A-Z] [a-z])"
-DNS="$(grep nameserver /etc/resolv.conf | grep -v 127.0.0.1 | awk '{printf $2","}' | sed 's/,$//')"
-ARCH=$(uname -m | sed 's|i.86|i386|')
-
-#MIRROIR=ftp://ftp.scientificlinux.org/linux/scientific/6x/$ARCH/os
-#MIRROIR=ftp://mirrors.ircam.fr/pub/scientificlinux/scientific/6x/$ARCH/os
-#MIRROIR=http://centos.mirrors.ovh.net/ftp.centos.org/7/os/$ARCH
-MIRROIR=http://mirror.centos.org/centos/7/os/$ARCH
-#MIRROIR=http://lune.saacy.reslinger.net/repos/CentOS7/$ARCH/os
-#DESKTOP=desktop
-INST_OPTIONS="lang=fr_FR keymap=fr-latin9 panic=1 ks.sendsn ks.sendmac inst.sshd=1 net.ifnames=0 biosdevname=0 inst.vnc inst.vncpassword=SDFGHJKL $DESKTOP"
-#kernel $PARTBOOT/vmlinuz vnc vncpassword=ovhpassword ip=$IP netmask=$MASK gateway=$GW dns=$DNS ksdevice=$MAC method=$MIRROIR/ lang=fr_FR keymap=fr-latin1 panic=1 kssendmac sshd=1
-if [ -z "$DNS" ]; then
-	if [ $(whois $IP | grep -ci dedibox) -gt 0 ]; then
-		# Dedibox
-		DNS=62.210.16.6,62.210.16.7
-	else
-		# OVH
-		DNS=213.186.33.99
-		#DNS=46.246.46.46,194.132.32.23
-	fi
-fi
-if [ $(mount | grep -c /boot\ ) -eq 1 ]; then
-    PARTBOOT=""
-else
-    PARTBOOT="/boot"
-fi
-cd /boot
-wget "$MIRROIR"/isolinux/{vmlinuz,initrd.img}
-if [ $(ip link show | grep ^[0-9] | grep -v lo: | wc -l) -eq 1 ]; then
-	INST_OPTIONS="ks.device=link ${INST_OPTIONS}"
-else
-	INST_OPTIONS="ks.device=$MAC ${INST_OPTIONS}"
-fi
-if [ ! -z "$STATIC" ]; then
-	INST_OPTIONS="ip=$IP::$GW:$MASK:$(hostname -s):$IF:off:${DNS/,*} ${INST_OPTIONS}"
-fi
-if [ -f /boot/grub/grub.conf ]; then
-	cat >> /boot/grub/grub.conf <<EOF
-title CentOS 7 Install (PXE)
-        root (hd0,0)
-        kernel $PARTBOOT/vmlinuz ${INST_OPTIONS} inst.ks=http://boot.reslinger.net/ks7.cfg inst.stage2=$MIRROIR ${CONSOLE}
-        initrd $PARTBOOT/initrd.img
-EOF
-	NB="$(grep -Ev '^($| *#)' /boot/grub/grub.conf | grep -c title)"
-	NB=$[$NB-1]
-	echo -e "savedefault --default=$NB --once\nquit\n" | grub --batch
-elif [ -f /boot/grub2/grub.cfg ]; then
-  if [ $(sed 's/ /\n/g' /proc/cmdline | grep -c console) -gt 1 ]; then
-	#  echo "On ajoute les console pour avoir une config également en serial"
-	  CONSOLE="$(for i in `sed 's/ /\n/g' /proc/cmdline | grep console`; do echo -n "$i "; done | sed 's/ $//')"
-  fi
-
-	#BOOT_DISK="$(df -hP /boot/ | awk '{print $1}' | tail -n1)"
-	BOOT_DISK="$(mount | grep -e '\s'"`df -h /boot | tail -n1 | awk '{print $6}'`"'\s' | cut -f1 -d\ )"
-	#BOOT_UUID="$(tune2fs -l ${BOOT_DISK} | grep UUID | awk '{print $3}')"
-	BOOT_UUID="$(blkid ${BOOT_DISK} | sed 's/.*\sUUID="\([^ ]*\)".*/\1/')"
-	if [ $(echo "${BOOT_DISK}" | grep -c /dev/md) -eq 1 ]; then
-		# Pas forcement /dev/md2 !!!
-	    UUID_BOOT_DISK="mduuid/$(mdadm --detail ${BOOT_DISK} | grep UUID | awk '{print $3}' | sed 's/://g')"
-	else
-	    #echo "UUID_BOOT_DISK non defini" >&2
-	    #exit 1
-	    UUID_BOOT_DISK="${BOOT_UUID}"
-	fi
-
-	cat >> /etc/grub.d/40_custom <<EOF
-menuentry 'CentOS 7 Install (PXE)' --unrestricted {
-        set root='${UUID_BOOT_DISK}'
-        if [ x\$feature_platform_search_hint = xy ]; then
-          search --no-floppy --fs-uuid --set=root --hint='${UUID_BOOT_DISK}' ${BOOT_UUID}
-        else
-          search --no-floppy --fs-uuid --set=root ${BOOT_UUID}
-        fi
-        linux $PARTBOOT/vmlinuz ${INST_OPTIONS} inst.ks=http://boot.reslinger.net/ks7.cfg inst.stage2=$MIRROIR ${CONSOLE}
-        initrd  $PARTBOOT/initrd.img
-}
-EOF
-	# ksdevice=MAC Replaced with BO O T IF= MAC ?
-	# kernel $PARTBOOT/vmlinuz install=http://centos.arcticnetwork.ca/6.4/os/$ARCH/ hostip=88... gateway=88... usessh=1 sshpassword=123456789
-	grub2-mkconfig --output=/boot/grub2/grub.cfg
-	#NB="$(grep -Ev '^($| *#)' /boot/grub2/grub.cfg | grep -c ^menuentry)"
-	#NB=$[$NB-1]
-	#grub2-reboot $NB
-	grub2-reboot 'CentOS 7 Install (PXE)'
-else
-	echo "Bootloader non identifié !" >&2
-	exit 1
-fi
-
-# avec tigervnc:
-# vncviewer CompressLevel 9 FullColor 176.31.103.156:1