diff --git a/create_arm_image.sh b/create_arm_image.sh
index 2754368..28ef4fe 100755
--- a/create_arm_image.sh
+++ b/create_arm_image.sh
@@ -128,12 +128,21 @@ function genusemirroroptions()
 
     DNF_MIRROROPTS="--config=${DNF_CONFIGPATH} --forcearch=${ARM_VERSION} --nogpgcheck --releasever=${MAGEIA_VERSION}"
     if [ ! -z "${MIRROR}" ]; then
-        DNF_MIRROROPTS="${DNF_MIRROROPTS} --disablerepo=* --repofrompath=mgarel,${MIRROR}/media/core/release/ --repofrompath=mgaup,${MIRROR}/media/core/updates/ --enablerepo=mgarel --enablerepo=mgaup"
+        DNF_MIRROROPTS="${DNF_MIRROROPTS} --disablerepo=* --repofrompath=mgarel,${MIRROR}/media/core/release/ --enablerepo=mgarel"
+        if [ "${MAGEIA_VERSION}" != "cauldron" ]; then
+			DNF_MIRROROPTS="${DNF_MIRROROPTS} --repofrompath=mgaup,${MIRROR}/media/core/updates/ --enablerepo=mgaup"
+		fi
         if [ ${NONFREE} -eq 1 ]; then
-            DNF_MIRROROPTS="${DNF_MIRROROPTS} --repofrompath=mgarel-nonfree,${MIRROR}/media/nonfree/release/ --repofrompath=mgaup-nonfree,${MIRROR}/media/nonfree/updates/ --enablerepo=mgarel-nonfree --enablerepo=mgaup-nonfree"
+            DNF_MIRROROPTS="${DNF_MIRROROPTS} --repofrompath=mgarel-nonfree,${MIRROR}/media/nonfree/release/ --enablerepo=mgarel-nonfree "
+            if [ "${MAGEIA_VERSION}" != "cauldron" ]; then
+				DNF_MIRROROPTS="${DNF_MIRROROPTS} --repofrompath=mgaup-nonfree,${MIRROR}/media/nonfree/updates/ --enablerepo=mgaup-nonfree"
+			fi
         fi
         if [ ${TAINTED} -eq 1 ]; then
-            DNF_MIRROROPTS="${DNF_MIRROROPTS} --repofrompath=mgarel-tainted,${MIRROR}/media/tainted/release/ --repofrompath=mgaup-tainted,${MIRROR}/media/tainted/updates/ --enablerepo=mgarel-tainted --enablerepo=mgaup-tainted"
+            DNF_MIRROROPTS="${DNF_MIRROROPTS} --repofrompath=mgarel-tainted,${MIRROR}/media/tainted/release/ --enablerepo=mgarel-tainted "
+            if [ "${MAGEIA_VERSION}" != "cauldron" ]; then
+				DNF_MIRROROPTS="${DNF_MIRROROPTS} --repofrompath=mgaup-tainted,${MIRROR}/media/tainted/updates/ --enablerepo=mgaup-tainted"
+            fi
         fi
     fi
     export DNF_MIRROROPTS
@@ -143,16 +152,21 @@ function genusemirroroptions()
 # enabling extra Mageia repositories
 function enableextrarepos()
 {
-    if [ "${MAGEIA_VERSION}" = "cauldron" ]; then
-        extrasect_baseprefix="cauldron"
-        extrasect_updatesprefix="cauldron-updates"
-    else
-        extrasect_baseprefix="mageia"
-        extrasect_updatesprefix="updates"
-    fi
+	extrasect_baseprefix="mageia"
+ #   if [ "${MAGEIA_VERSION}" = "cauldron" ]; then
+ #       extrasect_baseprefix="cauldron"
+ #       extrasect_updatesprefix=""
+ #   else
+ #       extrasect_baseprefix="mageia"
+	extrasect_updatesprefix="updates"
+ #   fi
     if [ ${NONFREE} -eq 1 ]; then
         title "activating non-free repos"
-        /usr/bin/dnf --installroot="${BUILD_PATH}" config-manager --set-enabled "${extrasect_baseprefix}-${ARM_VERSION}-nonfree" --set-enabled "${extrasect_updatesprefix}-${ARM_VERSION}-nonfree"
+        DNFPARAM=--installroot="${BUILD_PATH}" config-manager --set-enabled "${extrasect_baseprefix}-${ARM_VERSION}-nonfree"
+        if [ "${MAGEIA_VERSION}" != "cauldron" ]; then
+			DNFPARAM=$DNFPARAM" --set-enabled ${extrasect_updatesprefix}-${ARM_VERSION}-nonfree"
+		fi
+        /usr/bin/dnf $DNFPARAM;
         err=${?}
         if [ ${err} -ne 0 ]; then
             error "line ${LINENO} error ${err} - can't activate nonfree repositories : exiting"
@@ -161,7 +175,11 @@ function enableextrarepos()
     fi
     if [ ${TAINTED} -eq 1 ]; then
         title "activating tainted repos"
-        /usr/bin/dnf --installroot="${BUILD_PATH}" config-manager --set-enabled "${extrasect_baseprefix}-${ARM_VERSION}-tainted" --set-enabled "${extrasect_updatesprefix}-${ARM_VERSION}-tainted"
+        DNFPARAM=--installroot="${BUILD_PATH}" config-manager --set-enabled "${extrasect_baseprefix}-${ARM_VERSION}-tainted"
+        if [ "${MAGEIA_VERSION}" != "cauldron" ]; then
+			DNFPARAM=$DNFPARAM" --set-enabled ${extrasect_updatesprefix}-${ARM_VERSION}-tainted"
+		fi
+        /usr/bin/dnf $DNFPARAM²
         err=${?}
         if [ ${err} -ne 0 ]; then
             error "line ${LINENO} error ${err} - can't activate tainted repositories : exiting"
@@ -992,7 +1010,7 @@ case ${OPT} in
         genusemirroroptions #Generate mirror options, if needed
         installbasesystem #Generate the rootfs, rootfiles, ...
         enableextrarepos
-        addurpmimedia
+#        addurpmimedia
         mkfstab
         preparechroot
         jumpchroot
@@ -1001,7 +1019,7 @@ case ${OPT} in
             MIRROR=
             genusemirroroptions
             enableextrarepos
-            addurpmimedia
+#            addurpmimedia
         mountPartitions
         copyingsystem
         unmountingPartitions
diff --git a/platforms/mageia4arm.cfg b/platforms/mageia4arm.cfg
new file mode 100644
index 0000000..78e2698
--- /dev/null
+++ b/platforms/mageia4arm.cfg
@@ -0,0 +1,66 @@
+
+# Copyright (C) 2017-2018 Daniel Tartavel-jeannot   <contact@librepc.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+# Mageia version 7 or later, cauldron.
+# TO MODIFY
+MAGEIA_VERSION=""
+# Arm version armv7hl, aarch64
+# TO MODIFY
+ARM_VERSION=""
+
+# Target plateform (odroid or rpi)
+# TO MODIFY
+TARGET=""
+# Target version (0,2,3 for raspi, 3 or 4 for odroid)
+#TO MODIFY
+TARGET_VERSION=""
+
+# URL of the Mageia mirror used to install ( see mirrors.mageia.org )
+MIRROR="http://ftp.free.fr/mirrors/mageia.org/distrib/$MAGEIA_VERSION/$ARM_VERSION"
+
+# image will be created here
+# TO MODIFY
+INSTALL_PATH="/path/to/$TARGET"
+
+# Build directory will be created here
+BUILD_PATH="$INSTALL_PATH/build"
+
+#name of the image
+IMAGE="Mageia-${MAGEIA_VERSION}-$TARGET.img"
+
+#Mount point of image's partitions
+BOOT="/mnt/boot"
+ROOT="/mnt/root"
+
+# Default user
+# TO MODIFY
+ID_USER="user login"
+PASSWORD="user password"
+
+#root password
+ROOT_PWD="root password"
+
+#Hostname
+HOSTNAME="$TARGET.$ID_USER"
+
+#Filesystem of boot partitions (default ext4 raspberry pi need vfat)
+#BOOTFS=ext4
+
+#kernel package to install (just needed for odroid)
+#KERNEL=kernel-odroid
+
+#Path where the raspberry pi firmware is/will be installed ( just needed for raspberry pi )
+FIRMWARE_PATH="$INSTALL_PATH/"
diff --git a/platforms/rpi4/10-vchiq-permissions.rules b/platforms/rpi4/10-vchiq-permissions.rules
new file mode 100644
index 0000000..bacea0e
--- /dev/null
+++ b/platforms/rpi4/10-vchiq-permissions.rules
@@ -0,0 +1 @@
+SUBSYSTEM=="vchiq",GROUP="video",MODE="0660"
diff --git a/platforms/rpi4/bcm2711-rpi-4-b.dtb b/platforms/rpi4/bcm2711-rpi-4-b.dtb
new file mode 100644
index 0000000..f078295
Binary files /dev/null and b/platforms/rpi4/bcm2711-rpi-4-b.dtb differ
diff --git a/platforms/rpi4/brcmfmac43430-sdio.txt b/platforms/rpi4/brcmfmac43430-sdio.txt
new file mode 100644
index 0000000..ea4f648
--- /dev/null
+++ b/platforms/rpi4/brcmfmac43430-sdio.txt
@@ -0,0 +1,66 @@
+# NVRAM file for BCM943430WLPTH
+# 2.4 GHz, 20 MHz BW mode
+
+# The following parameter values are just placeholders, need to be updated.
+manfid=0x2d0
+prodid=0x0727
+vendid=0x14e4
+devid=0x43e2
+boardtype=0x0727
+boardrev=0x1101
+boardnum=22
+macaddr=00:90:4c:c5:12:38
+sromrev=11
+boardflags=0x00404201
+boardflags3=0x08000000
+xtalfreq=37400
+nocrc=1
+ag0=255
+aa2g=1
+ccode=ALL
+
+pa0itssit=0x20
+extpagain2g=0
+#PA parameters for 2.4GHz, measured at CHIP OUTPUT
+pa2ga0=-168,7161,-820
+AvVmid_c0=0x0,0xc8
+cckpwroffset0=5
+
+# PPR params
+maxp2ga0=84
+txpwrbckof=6
+cckbw202gpo=0
+legofdmbw202gpo=0x66111111
+mcsbw202gpo=0x77711111
+propbw202gpo=0xdd
+
+# OFDM IIR :
+ofdmdigfilttype=18
+ofdmdigfilttypebe=18
+# PAPD mode:
+papdmode=1
+papdvalidtest=1
+pacalidx2g=42
+papdepsoffset=-22
+papdendidx=58
+
+# LTECX flags
+ltecxmux=0
+ltecxpadnum=0x0102
+ltecxfnsel=0x44
+ltecxgcigpio=0x01
+
+il0macaddr=00:90:4c:c5:12:38
+wl0id=0x431b
+
+deadman_to=0xffffffff
+# muxenab: 0x1 for UART enable, 0x2 for GPIOs, 0x8 for JTAG
+muxenab=0x1
+# CLDO PWM voltage settings - 0x4 - 1.1 volt
+#cldo_pwm=0x4
+
+#VCO freq 326.4MHz
+spurconfig=0x3 
+
+edonthd20l=-75
+edoffthd20ul=-80
diff --git a/platforms/rpi4/brcmfmac43455-sdio.clm_blob b/platforms/rpi4/brcmfmac43455-sdio.clm_blob
new file mode 100644
index 0000000..09b930b
Binary files /dev/null and b/platforms/rpi4/brcmfmac43455-sdio.clm_blob differ
diff --git a/platforms/rpi4/brcmfmac43455-sdio.txt b/platforms/rpi4/brcmfmac43455-sdio.txt
new file mode 100644
index 0000000..260c929
--- /dev/null
+++ b/platforms/rpi4/brcmfmac43455-sdio.txt
@@ -0,0 +1,92 @@
+# Cloned from bcm94345wlpagb_p2xx.txt 
+NVRAMRev=$Rev: 498373 $
+sromrev=11
+vendid=0x14e4
+devid=0x43ab
+manfid=0x2d0
+prodid=0x06e4
+#macaddr=00:90:4c:c5:12:38
+macaddr=b8:27:eb:74:f2:6c
+nocrc=1
+boardtype=0x6e4
+boardrev=0x1304
+
+#XTAL 37.4MHz
+xtalfreq=37400
+
+btc_mode=1
+#------------------------------------------------------
+#boardflags: 5GHz eTR switch by default
+#            2.4GHz eTR switch by default
+#            bit1 for btcoex
+boardflags=0x00480201
+boardflags2=0x40800000
+boardflags3=0x48200100
+phycal_tempdelta=15
+rxchain=1
+txchain=1
+aa2g=1
+aa5g=1
+tssipos5g=1
+tssipos2g=1
+femctrl=0
+AvVmid_c0=1,165,2,100,2,100,2,100,2,100
+pa2ga0=-129,6525,-718
+pa2ga1=-149,4408,-601
+pa5ga0=-185,6836,-815,-186,6838,-815,-184,6859,-815,-184,6882,-818
+pa5ga1=-202,4285,-574,-201,4312,-578,-196,4391,-586,-201,4294,-575
+itrsw=1
+pdoffsetcckma0=2
+pdoffset2gperchan=0,-2,1,0,1,0,1,1,1,0,0,-1,-1,0
+pdoffset2g40ma0=16
+pdoffset40ma0=0x8888
+pdoffset80ma0=0x8888
+extpagain5g=2
+extpagain2g=2
+tworangetssi2g=1
+tworangetssi5g=1
+# LTECX flags
+# WCI2
+ltecxmux=0
+ltecxpadnum=0x0504
+ltecxfnsel=0x22
+ltecxgcigpio=0x32
+
+maxp2ga0=80
+ofdmlrbw202gpo=0x0022
+dot11agofdmhrbw202gpo=0x4442
+mcsbw202gpo=0x98444422
+mcsbw402gpo=0x98444422
+maxp5ga0=82,82,82,82
+mcsbw205glpo=0xb9555000
+mcsbw205gmpo=0xb9555000
+mcsbw205ghpo=0xb9555000
+mcsbw405glpo=0xb9555000
+mcsbw405gmpo=0xb9555000
+mcsbw405ghpo=0xb9555000
+mcsbw805glpo=0xb9555000
+mcsbw805gmpo=0xb9555000
+mcsbw805ghpo=0xb9555000
+
+swctrlmap_2g=0x00000000,0x00000000,0x00000000,0x010000,0x3ff
+swctrlmap_5g=0x00100010,0x00200020,0x00200020,0x010000,0x3fe
+swctrlmapext_5g=0x00000000,0x00000000,0x00000000,0x000000,0x3
+swctrlmapext_2g=0x00000000,0x00000000,0x00000000,0x000000,0x3
+
+vcodivmode=1
+deadman_to=481500000
+
+ed_thresh2g=-54
+ed_thresh5g=-54
+eu_edthresh2g=-54
+eu_edthresh5g=-54
+ldo1=4
+rawtempsense=0x1ff
+cckPwrIdxCorr=3
+cckTssiDelay=150
+ofdmTssiDelay=150
+txpwr2gAdcScale=1
+txpwr5gAdcScale=1
+dot11b_opts=0x3aa85
+cbfilttype=1
+fdsslevel_ch11=6
diff --git a/platforms/rpi4/extlinux.conf b/platforms/rpi4/extlinux.conf
new file mode 100644
index 0000000..bd8b64e
--- /dev/null
+++ b/platforms/rpi4/extlinux.conf
@@ -0,0 +1,10 @@
+menu Welcome to Mageia-Minimal.
+timeout 20
+default linux
+
+label linux
+	kernel /boot/vmlinuz
+	append root=UUID=<UUID> <BOOT_ARGS>
+	fdtdir /usr/lib/<FDTDIR>
+	initrd /boot/initrd
+
diff --git a/platforms/rpi4/mageia4arm.cfg b/platforms/rpi4/mageia4arm.cfg
new file mode 100644
index 0000000..e1b3d24
--- /dev/null
+++ b/platforms/rpi4/mageia4arm.cfg
@@ -0,0 +1,101 @@
+
+# Copyright (C) 2017-2018 Daniel Tartavel-jeannot   <contact@librepc.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+
+MAGEIA_VERSION="cauldron"
+ARM_VERSION="aarch64"
+# ARM_VERSION="armv7hl"
+
+#target plateform (xu3-4 or rpi)
+TARGET="rpi"
+#version of the target
+# 0, 1, 2 ,3_32 for rpi and 3 or 4 for odroid
+TARGET_VERSION="4"
+
+# URL of the Mageia mirror used to install ( see mirrors.mageia.org )
+MIRROR="http://ftp.free.fr/mirrors/mageia.org/distrib/${MAGEIA_VERSION}/${ARM_VERSION}"
+#MIRROR="/mnt/STOCK/mageia/distrib/$MAGEIA_VERSION/$ARM_VERSION"
+
+# image will be created here
+# INSTALL_PATH="/mnt/perso/raspi-test"
+
+# Build directory will be created here
+BUILD_PATH="${INSTALL_PATH}/build"
+
+#name of the image
+IMAGE="Mageia-${MAGEIA_VERSION}-${TARGET}.img"
+
+#Default user
+# ID_USER="pi"
+# PASSWORD="raspberry"
+
+#root password
+# ROOT_PWD="piroot"
+
+#Hostname
+HOSTNAME="${TARGET}"
+
+#Mount point of image's partitions
+BOOT="/mnt/boot"
+ROOT="/mnt/root"
+
+#Filesystem of boot partitions (default ext4 raspberry pi need vfat)
+SEPARATE_BOOT_PARTITION=1
+BOOTFS="vfat"
+
+#The arguments for the Kernel
+BOOT_ARGS='dwc_otg.lpm_enable=0 console=ttyS0,115200 kgdboc=ttyS0,115200 console=tty1 rootwait fsck.repair=1 8250.nr_uarts=1 elevator=deadline cma=256M\@512M audit=0'
+
+#Path where the raspberry pi firmware is/will be installed
+FIRMWARE_PATH="$INSTALL_PATH"
+FIRMWARE_DIR="firmware-stable"
+INFORMATION="
+https://elinux.org/RPi_Software
+https://www.raspberrypi.org/documentation/configuration/config-txt/boot.md
+
+https://github.com/raspberrypi/firmware/blob/master/boot/bootcode.bin
+https://github.com/raspberrypi/firmware/blob/master/boot/bcm2710-rpi-3-b-plus.dtb
+
+https://github.com/raspberrypi/firmware/blob/master/boot/fixup.dat
+https://github.com/raspberrypi/firmware/blob/master/boot/start.elf
+https://github.com/raspberrypi/firmware/blob/master/boot/fixup4.dat #Rpi4
+https://github.com/raspberrypi/firmware/blob/master/boot/start4.elf #Rpi4
+
+#Debug (implicitly used with start_debug=1)
+https://github.com/raspberrypi/firmware/blob/master/boot/fixup_db.dat
+https://github.com/raspberrypi/firmware/blob/master/boot/start_db.elf
+https://github.com/raspberrypi/firmware/blob/master/boot/start4db.elf #Rpi4
+https://github.com/raspberrypi/firmware/blob/master/boot/fixup4db.dat #Rpi4
+
+#Low GPU Memory (=16MB)
+https://github.com/raspberrypi/firmware/blob/master/boot/fixup_cd.dat
+https://github.com/raspberrypi/firmware/blob/master/boot/start_cd.elf
+https://github.com/raspberrypi/firmware/blob/master/boot/start4cd.elf #Rpi4
+https://github.com/raspberrypi/firmware/blob/master/boot/fixup4cd.dat #Rpi4
+
+#Testing versions (eXtra features) (like camera module) (implicitly used with start_x=1 ) :
+https://github.com/raspberrypi/firmware/blob/master/boot/fixup_x.dat
+https://github.com/raspberrypi/firmware/blob/master/boot/start_x.elf
+https://github.com/raspberrypi/firmware/blob/master/boot/start4x.elf #Rpi4
+https://github.com/raspberrypi/firmware/blob/master/boot/fixup4x.dat #Rpi4
+"
+FIRMWARE_DOWNLOAD_URL="https://github.com/raspberrypi/firmware/raw/master/boot/bootcode.bin
+https://github.com/raspberrypi/firmware/raw/master/boot/bcm2711-rpi-4-b.dtb
+https://github.com/raspberrypi/firmware/raw/master/boot/fixup4.dat
+https://github.com/raspberrypi/firmware/raw/master/boot/start4.elf
+https://github.com/raspberrypi/firmware/raw/master/boot/fixup4x.dat
+https://github.com/raspberrypi/firmware/raw/master/boot/start4x.elf
+"
diff --git a/platforms/rpi4/mageia4arm.cfg.original b/platforms/rpi4/mageia4arm.cfg.original
new file mode 100644
index 0000000..e1b78d9
--- /dev/null
+++ b/platforms/rpi4/mageia4arm.cfg.original
@@ -0,0 +1,56 @@
+
+# Copyright (C) 2017-2018 Daniel Tartavel-jeannot   <dtux@free.fr>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+
+MAGEIA_VERSION="7"
+ARM_VERSION="armv7hl"
+
+#target plateform (xu3-4 or rpi)
+TARGET="rpi" 
+
+# URL of the Mageia mirror used to install ( see mirrors.mageia.org )
+MIRROR="http://ftp.free.fr/mirrors/mageia.org/distrib/$MAGEIA_VERSION/$ARM_VERSION"
+# image will be created here
+INSTALL_PATH="<change this>"
+
+# Build directory will be created here
+BUILD_PATH="$INSTALL_PATH/build"
+
+#name of the image
+IMAGE="Mageia-${MAGEIA_VERSION}-$TARGET.img"
+
+#Mount point of image's partitions
+#no need to be changed
+BOOT="/mnt/boot"
+ROOT="/mnt/root"
+
+#Default user
+ID_USER="pi"
+PASSWORD="raspberry"
+
+#root password
+ROOT_PWD="piroot"
+
+#Hostname 
+HOSTNAME="$TARGET.$ID_USER" 
+
+#Filesystem of boot partitions (default ext4 raspberry pi need vfat)
+#DO NOT CHANGE THIS
+BOOTFS="vfat"
+
+#Path where the raspberry pi firmware is/will be downloaded
+FIRMWARE_PATH="$INSTALL_PATH"
+FIRMWARE_DIR="firmware-stable"
diff --git a/platforms/rpi4/modprobe.conf b/platforms/rpi4/modprobe.conf
new file mode 100644
index 0000000..7725dae
--- /dev/null
+++ b/platforms/rpi4/modprobe.conf
@@ -0,0 +1,3 @@
+alias wlan0 brcmfmac
+alias eth0 smsc95xx
+alias usb0 rndis_host
diff --git a/platforms/rpi4/second_stage_install.sh b/platforms/rpi4/second_stage_install.sh
new file mode 100644
index 0000000..aee1d53
--- /dev/null
+++ b/platforms/rpi4/second_stage_install.sh
@@ -0,0 +1,55 @@
+#!/bin/bash
+
+# Copyright (C) 2017-2018 Daniel Tartavel-jeannot   <contact@librepc.com>
+# Copyright (C) 2019-2020 Jean-Baptiste Biernacki   <j.biernacki@free.fr>
+#
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+export ARCH=arm
+
+/usr/bin/chown :shadow /etc/shadow /etc/gshadow /etc/login.defs /etc/pam.d/chage-chfn-chsh /etc/pam.d/chpasswd-newusers /etc/pam.d/system-auth /etc/pam.d/user-group-mod /bin/passwd /bin/chage
+
+/usr/bin/chown :systemd-journal -R /var/log/journal
+
+#Install all packages you need
+# No verifying rpm due to a bug in packages, some are not signed
+
+/usr/bin/dnf --nogpgcheck --assumeyes install basesystem chrony rng-tools man openssh-server rfkill wireless-tools bluez wpa_supplicant make binutils dracut u-boot rsync kernel-desktop-latest mlocate drakx-kbd-mouse-x11 glibc-i18ndata
+
+
+/usr/bin/chown :chrony -R /etc/chrony.keys /var/log/chrony
+/usr/bin/chown :daemon /etc/wpa_supplicant.conf
+/usr/bin/chown :tty /bin/write /bin/wall
+/usr/bin/chown :lock /sbin/lockdev
+/usr/bin/chown :bin /sbin/traceroute
+/usr/bin/chown polkitd /etc/polkit-1/rules.d
+
+# KV=$(basename /boot/vmlinuz-*)
+# KV=${KV#vmlinuz-}
+# dracut --kver $KV
+
+VMLINUZ=$(ls --sort=time -1 /boot/vmlinuz-[[:digit:]]* | head -n 1)
+# Normally, /boot/vmlinuz is generated with the /sbin/installkernel script, but it is not generated with chroot.
+rm -f /boot/vmlinuz
+ln -r -s "${VMLINUZ}" /boot/vmlinuz #For extlinux.conf
+
+rm -f ${0}
+
+K_INST_VERSION=$(rpm -q kernel-desktop-latest | sed -e 's/kernel-\([[:alnum:]]*\)-latest-\([\.[:digit:]]*\)-\([\.[:alnum:]]*\).*$/\2-\1-\3/')
+dracut --no-compress --force --no-hostonly --local --no-early-microcode --confdir "/etc/dracut.conf.d" --kmoddir="/lib/modules/${K_INST_VERSION}" --xz --printsize --kernel-image /boot/vmlinuz --fstab /boot/initrd-${K_INST_VERSION}.img ${K_INST_VERSION}
+ln -r -s /boot/initrd-${K_INST_VERSION}.img /boot/initrd.img
+echo "Dracut done."
+
+alternatives --set soundprofile /etc/sound/profiles/alsa
diff --git a/platforms/rpi4/specialFunctions.sh b/platforms/rpi4/specialFunctions.sh
new file mode 100755
index 0000000..ada30a4
--- /dev/null
+++ b/platforms/rpi4/specialFunctions.sh
@@ -0,0 +1,159 @@
+#!/bin/bash
+
+# Copyright (C) 2017-2018 Daniel Tartavel-jeannot   <contact@librepc.com>
+# Copyright (C) 2019-2020 Jean-Baptiste Biernacki   <j.biernacki@free.fr>
+#
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+#RPI partitionning :
+DEFAULT=""
+NEW_PART=n
+PRIMARY=p
+CHANGE_TYPE=t
+CHANGE_BOOTFLAG=a
+APPLY=w
+
+PART_BOOT=1
+PART_BOOT_FIRST_SECTOR=${DEFAULT}
+PART_BOOT_SIZE="+128M"
+
+PART_ROOT=2
+PART_ROOT_FIRST_SECTOR=${DEFAULT}
+PART_ROOT_SIZE=${DEFAULT}
+
+TYPE_FAT32LBA=c
+
+FDISK_SCRIPT="${NEW_PART}\n${PRIMARY}\n${PART_BOOT}\n${PART_BOOT_FIRST_SECTOR}\n${PART_BOOT_SIZE}\n${CHANGE_TYPE}\n${TYPE_FAT32LBA}\n${NEW_PART}\n${PRIMARY}\n${PART_ROOT}\n${PART_ROOT_FIRST_SECTOR}\n${PART_ROOT_SIZE}\n${CHANGE_BOOTFLAG}\n${PART_BOOT}\n${CHANGE_BOOTFLAG}\n${PART_ROOT}\n${APPLY}\n"
+
+
+function preImgCreation()
+{
+    
+    title "Download binary blob for Rpi"
+    for i in ${FIRMWARE_DOWNLOAD_URL}; do
+        info "Download ${i}"
+        curl -L -O -J ${i} -s
+    done
+
+#     if ! [ -d "${FIRMWARE_PATH}/${FIRMWARE_DIR}" ]; then                    # the firmware directory does not exists
+#         echo "$(ls *.zip| wc -l)"
+#         if [ "$(ls *.zip| wc -l)" -eq 0 ]; then             # the firmware archive does not exists
+#             warning "The raspberry pi firmware need to be downloaded"
+#             info "Downloading FIRMWARE_FILENAME"
+#             wget ${FIRMWARE_DOWNLOAD_URL}
+# #             curl -L -O -J ${FIRMWARE_DOWNLOAD_URL}
+# #             curl -L ${FIRMWARE_DOWNLOAD_URL} -o firmware-stable.zip
+#             if [ ${?} -ne 0 ]; then
+#                 error "line ${LINENO} error downloading raspberry firmware at ${FIRMWARE_DOWNLOAD_URL}: exiting"
+#                 exit 1
+#             fi
+#         fi
+#         info "extracting firmware"
+#         unzip -d "${FIRMWARE_PATH}" *.zip
+#         if [ ${?} -ne 0 ]; then
+#             error "line ${LINENO} error unzipping ${FIRMWARE_PATH} : exiting"
+#             exit 1
+#         fi
+#     fi
+    
+    title "Creating Pi image"
+    title "Making raspberry pi image"
+    return 0
+}
+
+function postPrepareChroot()
+{
+    #Nothing to do. (Except replacing default function.)
+    return 0
+}
+
+
+function bunrningBootloader()
+{
+    #Nothing to do. (Except replacing default function.)
+    return 0
+}
+
+
+function copyingCustomSystem()
+{
+    info "copying 10-vchiq-permissions.rules"
+    cp --preserve=mode "${CONFIG_PATH}/10-vchiq-permissions.rules" "${BUILD_PATH}/etc/udev/rules.d/"
+    info "Making /etc/modules"
+    echo -e "vchiq\nsnd_bcm2835\nvc4\nbrcmfmac" >> "${BUILD_PATH}"/etc/modules
+
+    ARM_BOOT="${BUILD_PATH}/mnt/arm_boot"
+    if ! [ -d "${ARM_BOOT}" ]; then
+        mkdir -p "${ARM_BOOT}"
+    fi
+    info "copying modprobe.conf"
+    /usr/bin/cp -v --preserve=mode "${CONFIG_PATH}/modprobe.conf" "${BUILD_PATH}/etc/"
+    chown root:root "${BUILD_PATH}/etc/modprobe.conf"
+
+    info "copying firmware, overlays in rpi boot partition"
+#   cp -v --preserve=mode "${BUILD_PATH}/usr/lib/linux-"* "${BOOT}/dtb"
+    cp -v --preserve=mode "${FIRMWARE_PATH}/${FIRMWARE_DIR}/boot/start"* "${ARM_BOOT}/"
+    cp -v --preserve=mode "${FIRMWARE_PATH}/${FIRMWARE_DIR}/boot/fixup"* "${ARM_BOOT}/"
+    cp -v --preserve=mode "${FIRMWARE_PATH}/${FIRMWARE_DIR}/boot/bootcode.bin"* "${ARM_BOOT}/"
+    cp -vR --preserve=mode "${FIRMWARE_PATH}/${FIRMWARE_DIR}/boot/overlays" "${ARM_BOOT}/"
+
+    info "copying u-boot binary to ${ARM_BOOT}"
+    case ${TARGET_VERSION} in
+        "0")
+            info "copying u-boot for ${TARGET} 0"
+            cp --preserve=mode "${BUILD_PATH}/usr/lib/u-boot/rpi_0_w/u-boot.bin" "${ARM_BOOT}/kernel.img"
+            ;;
+        "1")
+            info "copying u-boot for ${TARGET} 1"
+            cp --preserve=mode "${BUILD_PATH}/usr/lib/u-boot/rpi/u-boot.bin" "${ARM_BOOT}/kernel.img"
+            ;;
+        "2")
+            info "copying u-boot for ${TARGET} 2"
+            cp --preserve=mode "${BUILD_PATH}/usr/lib/u-boot/rpi_2/u-boot.bin" "${ARM_BOOT}/kernel.img"
+            ;;
+        "3_32")
+            info "copying u-boot for ${TARGET} 3 32 bits"
+            cp --preserve=mode "${BUILD_PATH}/usr/lib/u-boot/rpi_3_32b/u-boot.bin" "${ARM_BOOT}/kernel.img"
+            ;;
+        "3+")
+            info "copying u-boot for ${TARGET} 3b+ 32 bits"
+            cp --preserve=mode "${BUILD_PATH}/usr/lib/u-boot/rpi_3_32b/u-boot.bin" "${ARM_BOOT}/kernel.img"
+            ;;
+		"4")
+			info "copying u-boot for ${TARGET} 4 64 bits"
+            cp --preserve=mode "${BUILD_PATH}/usr/lib/u-boot/rpi_4/u-boot.bin" "${ARM_BOOT}/kernel.img"
+            ;;
+    esac
+
+#   info "copying raspberry optionals files in opt"
+#   /bin/rsync -rlptDH "${FIRMWARE_PATH}/${FIRMWARE_DIR}/opt/" "${BUILD_PATH}/opt/"
+
+    info "copying wifi firmware file missing in kernel-firmware-nonfree"
+    if ! [ -d "${ROOT}/usr/lib/firmware/brcm/" ]; then
+        /bin/mkdir -p "${ROOT}/usr/lib/firmware/brcm/"
+    fi
+    if ! [[ -f "${ROOT}/usr/lib/firmware/brcm/brcmfmac434"* ]]; then
+        /bin/cp --preserve=mode "${CONFIG_PATH}/brcmfmac434"* "${ROOT}/usr/lib/firmware/brcm/"
+        if [ ${?} -ne 0 ]; then
+            error "line ${LINENO} error copying wifi firmware in ${ROOTP}/usr/lib/firmware/brcm/ : exiting"
+            exit ${ERR_1}
+        fi
+    fi
+
+    info "copying Mageia image to root partition"
+    /bin/rsync -rlptogDH --exclude "${ARM_BOOT}/" --exclude "qemu-arm-static*" "${BUILD_PATH}/" "${ROOT}/"
+    /bin/rsync -rlptogDH "${ARM_BOOT}/" "${BOOT}/"
+    return 0
+}