diff --git a/bootstrap.d/10-bootstrap.sh b/bootstrap.d/10-bootstrap.sh
index 9e39b5d..f57e4c3 100644
--- a/bootstrap.d/10-bootstrap.sh
+++ b/bootstrap.d/10-bootstrap.sh
@@ -8,6 +8,8 @@
 VARIANT=""
 COMPONENTS="main"
 
+if [ "$BUILD_KERNEL" != "uselocal" ]; then #ajout 2025
+
 # Use non-free Debian packages if needed
 # One use variable which is only needed by wifi firmware blob => reworked to use non free in /etc/apt/sources.list - we could just use ENABLE_WIRELESS here
 if [ "$ENABLE_WIRELESS" = true ] || [ "$ENABLE_NONFREE" = true ] ; then
@@ -24,11 +26,12 @@ fi
 #if [ "$RELEASE" = "bookworm" ] || [ "$RELEASE" = "bullseye" ] ; then
 #  APT_EXCLUDES="--exclude=init,systemd-sysv"
 #fi
-  
 
 # Base debootstrap (unpack only)
 http_proxy=${APT_PROXY} debootstrap ${APT_EXCLUDES} --arch="${RELEASE_ARCH}" --foreign ${VARIANT} --components="${COMPONENTS}" --include="${APT_INCLUDES}" "${RELEASE}" "${R}" "http://${APT_SERVER}/debian"
 
+
+
 # Copy qemu emulator binary to chroot
 install -m 755 -o root -g root "${QEMU_BINARY}" "${R}${QEMU_BINARY}"
 
@@ -36,9 +39,13 @@ install -m 755 -o root -g root "${QEMU_BINARY}" "${R}${QEMU_BINARY}"
 mkdir -p "${R}/usr/share/keyrings"
 install_readonly /usr/share/keyrings/debian-archive-keyring.gpg "${R}/usr/share/keyrings/debian-archive-keyring.gpg"
 
+
+
 # Complete the bootstrapping process
 chroot_exec /debootstrap/debootstrap --second-stage
 
+fi
+
 # Mount required filesystems
 mount -t proc none "${R}/proc"
 mount -t sysfs none "${R}/sys"
diff --git a/bootstrap.d/13-kernel.sh b/bootstrap.d/13-kernel.sh
index 253b3c2..31db9fe 100644
--- a/bootstrap.d/13-kernel.sh
+++ b/bootstrap.d/13-kernel.sh
@@ -15,7 +15,7 @@ fi
 
 # Fetch and build latest raspberry kernel
 case "$BUILD_KERNEL" in
-  "build")
+  "true")
 #if [ "$BUILD_KERNEL" = build ] ; then
   # Setup source directory
   mkdir -p "${KERNEL_DIR}"
@@ -800,10 +800,10 @@ case "$BUILD_KERNEL" in
       chroot_exec ln -sf /usr/src/linux "/lib/modules/${KERNEL_VERSION}/source"
     fi
   fi
-  ;;
+;;
 
 "download")
-else # BUILD_KERNEL=false
+#else # BUILD_KERNEL=false
   if [ "$SET_ARCH" = 64 ] ; then
     if [ "$RPI_MODEL" = 3 ] || [ "$RPI_MODEL" = 3P ] ; then
 	  # Use Sakakis modified kernel if ZSWAP is active
@@ -879,20 +879,19 @@ else # BUILD_KERNEL=false
     rm -fr "${temp_dir}"
 	rm -f "${R}"/tmp/kernel.deb
   fi
-fi
-  ;;
+
+  # Check if kernel installation was successful
+  KERNEL="$(ls -1 "${R}"/boot/firmware/kernel* | sort | tail -n 1)"
+  if [ -z "$KERNEL" ] ; then
+    echo "error: kernel installation failed! (/boot/kernel* not found)"
+    cleanup
+    exit 1
+  fi
+;;
 
 "uselocal")
   echo "using local kernel previous run"
-  ;;
+;;
   
 esac
-
-# Check if kernel installation was successful
-KERNEL="$(ls -1 "${R}"/boot/firmware/kernel* | sort | tail -n 1)"
-if [ -z "$KERNEL" ] ; then
-  echo "error: kernel installation failed! (/boot/kernel* not found)"
-  cleanup
-  exit 1
-fi
 #fi
diff --git a/bootstrap.d/14-fstab.sh b/bootstrap.d/14-fstab.sh
index 1405809..238e2e9 100644
--- a/bootstrap.d/14-fstab.sh
+++ b/bootstrap.d/14-fstab.sh
@@ -8,6 +8,8 @@
 # Install and setup fstab
 install_readonly files/mount/fstab "${ETC_DIR}/fstab"
 
+if [ "$BUILD_KERNEL" != "uselocal" ]; then #ajout 2025
+
 # Generate initramfs file
 if [ "$ENABLE_INITRAMFS" = true ] ; then
   if [ "$ENABLE_CRYPTFS" = true ] ; then
@@ -119,3 +121,5 @@ if [ "$ENABLE_INITRAMFS" = true ] ; then
     chroot_exec mkinitramfs -o "/boot/firmware/initramfs-${KERNEL_VERSION}" "${KERNEL_VERSION}"
   fi
 fi
+
+fi
\ No newline at end of file
diff --git a/bootstrap.d/20-networking.sh b/bootstrap.d/20-networking.sh
index 6a54457..57b2564 100644
--- a/bootstrap.d/20-networking.sh
+++ b/bootstrap.d/20-networking.sh
@@ -141,7 +141,7 @@ if [ "$ENABLE_HARDNET" = true ] ; then
   install_readonly files/sysctl.d/82-rpi-net-hardening.conf "${ETC_DIR}/sysctl.d/82-rpi-net-hardening.conf"
 
   # Setup resolver warnings about spoofed addresses
-  sed -i "s/^# spoof warn/spoof warn/" "${ETC_DIR}/host.conf"
+  #sed -i "s/^# spoof warn/spoof warn/" "${ETC_DIR}/host.conf" # comment 2025
 fi
 
 # Enable time sync
diff --git a/bootstrap.d/30-security.sh b/bootstrap.d/30-security.sh
index 16d78c3..1183594 100644
--- a/bootstrap.d/30-security.sh
+++ b/bootstrap.d/30-security.sh
@@ -1,7 +1,7 @@
 #
 # Setup users and security settings
 #
-
+if [ "$BUILD_KERNEL" != "uselocal" ]; then #ajout 2025
 # Load utility functions
 . ./functions.sh
 
@@ -22,3 +22,4 @@ else
   # Set no root password to disable root login
   chroot_exec usermod -p \'!\' root
 fi
+fi
\ No newline at end of file
diff --git a/templates/rpi3-Met-trixie_25-10-21.conf b/templates/rpi3-Met-trixie_25-10-21.conf
deleted file mode 100644
index b63e00f..0000000
--- a/templates/rpi3-Met-trixie_25-10-21.conf
+++ /dev/null
@@ -1,138 +0,0 @@
-#
-# Configuration file raspi3 /trixie  ENS de Lyon 2025/10/21
-#
-#---------------------
-#--- APT settings ----
-#---------------------
-#APT_SERVER=debian.mirrors.ovh.net
-#APT_SERVER=debian.proxad.net
-APT_SERVER=deb.debian.org
-APT_INCLUDES="zstd,zst,liblzma-dev,libzstd-dev, \
-zarchive-tools,liblzma-dev"
-#-------------------------------------
-# packages removed for various reasons
-#-------------------------------------
-#gnome-backgrounds,mate-backgrounds, \
-#geany,openbox-dev,openbox-lxde-session,
-#xutils-dev,lxrandr, tightvncserver,\
-#,x11proto-randr-dev,terminator,texlive,texlive-xetex
-APT_INCLUDES_LATE=""
-
-#-------------------------------
-#--- General System Settings ---
-#-------------------------------
-SET_ARCH=32
-RPI_MODEL=3
-RELEASE="trixie"
-RELEASE_ARCH="armhf"
-HOSTNAME="raspife3"
-DEFLOCAL="fr_FR.UTF-8"
-TIMEZONE="Europe/Paris"
-EXPANDROOT=false
-ENABLE_QEMU=false
-#---------------------
-#--- User Settings ---
-#---------------------
-ENABLE_ROOT=true
-ROOT_PASSWORD="Achanger1$"
-ENABLE_USER=true
-USER_NAME=ens-ife
-USER_PASSWORD="AChanger1$"
-#-------------------------
-#--- Keyboard Settings ---
-#-------------------------
-XKB_MODEL="pc105" 
-XKB_LAYOUT="fr" 
-XKB_VARIANT="latin9" 
-XKB_OPTIONS=""
-#------------------------
-#--- Network Settings ---
-#------------------------
-ENABLE_IPV6=true
-ENABLE_WIRELESS=false
-ENABLE_IPTABLES=false
-ENABLE_IFNAMES=true
-ENABLE_HARDNET=true
-ENABLE_ETH_DHCP=true
-ENABLE_WIFI_DHCP=false
-#NET_WIFI_SSID=MobileClimatEtMeteo
-#NET_WIFI_PSK=ClimatEtMeteo
-#---------------------
-#--- Basic features---
-#---------------------
-ENABLE_CONSOLE=false
-ENABLE_BLUETOOTH=false
-ENABLE_I2C=false
-ENABLE_SPI=false
-ENABLE_SSHD=true 
-SSH_ENABLE=true
-ENABLE_NONFREE=true
-ENABLE_RSYSLOG=true
-ENABLE_SOUND=true
-ENABLE_HWRANDOM=true
-ENABLE_MINGPU=true 
-ENABLE_DBUS=true 
-ENABLE_XORG=false
-ENABLE_WM=""
-ENABLE_SYSVINIT=true
-ENABLE_SPLASH=true
-ENABLE_LOGO=true
-#--------------------------------
-#--- Advanced System features ---
-#--------------------------------
-ENABLE_DPHYSSWAP=false
-ENABLE_QEMU=false
-ENABLE_MINBASE=false
-ENABLE_REDUCE=false
-ENABLE_SPLITFS=false
-ENABLE_INITRAMFS=true
-ENABLE_DBUS=true 
-ENABLE_USBBOOT=false
-ENABLE_UBOOT=false
-ENABLE_FBTURBO=false
-ENABLE_VIDEOCORE=false
-ENABLE_HARDNET=true
-ENABLE_IFNAMES=true
-ENABLE_NEXMON=false
-#DISABLE_UNDERVOLT_WARNINGS=
-#--------------------
-#--- ssh settings ---
-#--------------------
-SSH_ENABLE_ROOT=false
-SSH_LIMIT_USERS=false
-SSH_ROOT_PUB_KEY="/home/vidal/.ssh/authorized_keys"
-SSH_USER_PUB_KEY="/home/vidal/.ssh/authorized_keys"
-#-----------------------
-#--- Kernel settings ---
-#-----------------------
-BUILD_KERNEL=true
-KERNEL_BRANCH=rpi-6.12.y
-KERNEL_REDUCE=false
-KERNEL_HEADERS=true
-KERNEL_REMOVESRC=true
-KERNELSRC_CLEAN=true
-KERNELSRC_CONFIG=true
-KERNEL_DEFCONFIG=bcm2709_defconfig
-KERNEL_BIN_IMAGE=zImage
-KERNEL_IMAGE=kernel7.img
-KERNEL_CCACHE=true
-NB_CORES=16
-#------------------------
-#--- Reduce disk usage --
-#------------------------
-REDUCE_APT=false 
-REDUCE_DOC=true 
-REDUCE_MAN=true
-REDUCE_HWDB=false
-REDUCE_BASH=false 
-REDUCE_SSHD=false
-REDUCE_LOCALE=false
-#-------------------------
-ENABLE_CRYPTFS=false
-#-------------------------
-BASEDIR=/home/vidal/Nano-Ordinateurs/RaspberryPi/RpiGenImage/Images/${RELEASE}
-#BASEDIR=/media/*******/*********/Nano-Ordinateurs/RaspberryPi/RpiGenImage/Images/${RELEASE}
-DATE=`date +%Y-%m-%d`
-IMAGE_NAME=${BASEDIR}/${DATE}-rpi${RPI_MODEL}-${RELEASE}
-
-