diff --git a/extract_and_mount.sh b/extract_and_mount.sh
new file mode 100644
index 0000000..928f1ac
--- /dev/null
+++ b/extract_and_mount.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+
+# Préparer le système
+tar xjpf $CHROOT/$STAGE3 -C $CHROOT  --xattrs --numeric-owner
+chmod 1777 $CHROOT/tmp
+mount -t proc /proc $CHROOT/proc
+mount --rbind /sys $CHROOT/sys
+mount --make-rslave $CHROOT/sys
+mount --rbind /dev $CHROOT/dev
+mount --make-rslave $CHROOT/dev
+test -L /dev/shm && rm /dev/shm && mkdir /dev/shm
+mount -t tmpfs -o nosuid,nodev,noexec shm /dev/shm
+chmod 1777 /dev/shm
\ No newline at end of file
diff --git a/grubconfig.sh b/grubconfig.sh
new file mode 100644
index 0000000..67f5f7d
--- /dev/null
+++ b/grubconfig.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+#configurer grub
+chroot $CHROOT /bin/bash -c "grub-install /dev/sda"
+chroot $CHROOT /bin/bash -c "grub-mkconfig -o /boot/grub/grub.cfg"
+echo 'GRUB_CMDLINE_LINUX_DEFAULT="quiet"' >> $CHROOT/etc/default/grub
\ No newline at end of file
diff --git a/install_sys.sh b/install_sys.sh
deleted file mode 100644
index 2ad0b34..0000000
--- a/install_sys.sh
+++ /dev/null
@@ -1,51 +0,0 @@
-#!/bin/bash
-
-# Préparer le système
-tar xjpf $CHROOT/$STAGE3 -C $CHROOT  --xattrs --numeric-owner
-chmod 1777 $CHROOT/tmp
-mount -t proc /proc $CHROOT/proc
-mount --rbind /sys $CHROOT/sys
-mount --make-rslave $CHROOT/sys
-mount --rbind /dev $CHROOT/dev
-mount --make-rslave $CHROOT/dev
-test -L /dev/shm && rm /dev/shm && mkdir /dev/shm
-mount -t tmpfs -o nosuid,nodev,noexec shm /dev/shm
-chmod 1777 /dev/shm
-
-# configuration du système 
-echo "Europe/Paris" > $CHROOT/etc/timezone
-cp /etc/resolv.conf $CHROOT/etc/resolv.conf
-echo "fr_FR.UTF-8 UTF-8" >> $CHROOT/etc/locale.gen
-chroot $CHROOT /bin/bash -c "locale-gen"
-echo 'LANG="fr_FR.UTF-8"' > $CHROOT/etc/env.d/02locale
-echo 'LC_COLLATE="C"' >> $CHROOT/etc/env.d/02locale
-chroot $CHROOT /bin/bash -c "useradd -p \`openssl passwd -1 password\` -G wheel joe"
-sed -i 's/keymap="us"/keymap="fr"/g' $CHROOT/etc/conf.d/keymaps
-
-#configurer portage
-mirrorselect -i -c FR -o >> $CHROOT/etc/portage/make.conf
-echo MAKEOPTS='"'$MAKEOPTS'"' >> $CHROOT/etc/portage/make.conf
-echo EMERGE_DEFAULT_OPTS='"'$EMERGE_DEFAULT_OPTS'"'  >> $CHROOT/etc/portage/make.conf
-echo PORTAGE_BINHOST='"'$PORTAGE_BINHOST'"' >> $CHROOT/etc/portage/make.conf
-echo 'GRUB_PLATFORMS="pc"' >> $CHROOT/etc/portage/make.conf
-mkdir $CHROOT/etc/portage/repos.conf
-cp $CHROOT/usr/share/portage/config/repos.conf $CHROOT/etc/portage/repos.conf/gentoo.conf
-echo "app-admin/sudo -sendmail" >> $CHROOT/etc/portage/package.use/sudo.use
-echo "sys-boot/grub -fonts -themes" >> $CHROOT/etc/portage/package.use/grub.use
-
-# ectraire portage et installer
-tar xjpf $CHROOT/$SNAPSHOT -C $CHROOT/usr
-chroot $CHROOT /bin/bash -c "emerge --config sys-libs/timezone-data"
-chroot $CHROOT /bin/bash -c "emerge sudo grub --getbinpkgonly"
-
-#installer le noyaux
-tar xjpf $CHROOT/kernel.tar.bz2 -C $CHROOT/
-tar xjpf $CHROOT/modules.tar.bz2 -C /lib/modules/
-
-#configurer sudo
-echo "%wheel ALL=(ALL) NOPASSWD: ALL" > $CHROOT/etc/sudoers.d/wheel 
-
-#configurer grub
-chroot $CHROOT /bin/bash -c "grub-install /dev/sda"
-chroot $CHROOT /bin/bash -c "grub-mkconfig -o /boot/grub/grub.cfg"
-echo 'GRUB_CMDLINE_LINUX_DEFAULT="quiet"' >> $CHROOT/etc/default/grub
\ No newline at end of file
diff --git a/kernelinstall.sh b/kernelinstall.sh
new file mode 100644
index 0000000..4b8de00
--- /dev/null
+++ b/kernelinstall.sh
@@ -0,0 +1,4 @@
+#!/bin/bash
+#installer le noyaux
+tar xjpf $CHROOT/kernel.tar.bz2 -C $CHROOT/
+tar xjpf $CHROOT/modules.tar.bz2 -C /lib/modules/
\ No newline at end of file
diff --git a/portageconfig.sh b/portageconfig.sh
new file mode 100644
index 0000000..a4af5a4
--- /dev/null
+++ b/portageconfig.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+#configurer portage
+mirrorselect -i -c FR -o >> $CHROOT/etc/portage/make.conf
+echo MAKEOPTS='"'$MAKEOPTS'"' >> $CHROOT/etc/portage/make.conf
+echo EMERGE_DEFAULT_OPTS='"'$EMERGE_DEFAULT_OPTS'"'  >> $CHROOT/etc/portage/make.conf
+echo PORTAGE_BINHOST='"'$PORTAGE_BINHOST'"' >> $CHROOT/etc/portage/make.conf
+echo 'GRUB_PLATFORMS="pc"' >> $CHROOT/etc/portage/make.conf
+mkdir $CHROOT/etc/portage/repos.conf
+cp $CHROOT/usr/share/portage/config/repos.conf $CHROOT/etc/portage/repos.conf/gentoo.conf
+echo "app-admin/sudo -sendmail" >> $CHROOT/etc/portage/package.use/sudo.use
+echo "sys-boot/grub -fonts -themes" >> $CHROOT/etc/portage/package.use/grub.use
\ No newline at end of file
diff --git a/portageinstall.sh b/portageinstall.sh
new file mode 100644
index 0000000..88493f7
--- /dev/null
+++ b/portageinstall.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+# ectraire portage et installer
+tar xjpf $CHROOT/$SNAPSHOT -C $CHROOT/usr
+chroot $CHROOT /bin/bash -c "emerge --config sys-libs/timezone-data"
+chroot $CHROOT /bin/bash -c "emerge sudo grub --getbinpkgonly"
\ No newline at end of file
diff --git a/sudoconfig.sh b/sudoconfig.sh
new file mode 100644
index 0000000..7965b34
--- /dev/null
+++ b/sudoconfig.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+#configurer sudo
+echo "%wheel ALL=(ALL) NOPASSWD: ALL" > $CHROOT/etc/sudoers.d/wheel
\ No newline at end of file
diff --git a/sysconfig.sh b/sysconfig.sh
new file mode 100644
index 0000000..a896621
--- /dev/null
+++ b/sysconfig.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+# configuration du système 
+echo "Europe/Paris" > $CHROOT/etc/timezone
+cp /etc/resolv.conf $CHROOT/etc/resolv.conf
+echo "fr_FR.UTF-8 UTF-8" >> $CHROOT/etc/locale.gen
+chroot $CHROOT /bin/bash -c "locale-gen"
+echo 'LANG="fr_FR.UTF-8"' > $CHROOT/etc/env.d/02locale
+echo 'LC_COLLATE="C"' >> $CHROOT/etc/env.d/02locale
+chroot $CHROOT /bin/bash -c "useradd -p \`openssl passwd -1 password\` -G wheel joe"
+sed -i 's/keymap="us"/keymap="fr"/g' $CHROOT/etc/conf.d/keymaps
\ No newline at end of file