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+# Kali linux image for uConsole cm4
+
+we use kali-linux-2024.1-raspberry-pi-arm64.img   
+and some original uConsole cm4 debs to make the image for uConsole CM4
+
+## Here is the process:
+
+```
+sudo losetup -f --show -P kali-linux-2024.1-raspberry-pi-arm64.img
+#assume we got /dev/loop1
+
+sudo mount /dev/loop1p2 /mnt/p1/
+sudo mount /dev/loop1p1 /mnt/p1/boot/
+
+#mount chroot env
+cd /mnt/p1
+sudo mount --bind /dev dev/
+sudo mount --bind /sys sys/
+sudo mount --bind /proc proc/
+sudo mount --bind /dev/pts dev/pts
+#sudo chroot .
+
+# remove kali kernel and headers (5.15.44)
+sudo chroot /mnt/p1 /bin/bash -c 'sudo apt remove  kalipi-kernel kalipi-kernel-headers -y'
+
+#add cpi apt source list
+sudo chroot /mnt/p1/ /bin/bash -c 'wget -q -O- https://raw.githubusercontent.com/clockworkpi/apt/main/debian/KEY.gpg | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/clockworkpi.gpg'
+sudo chroot /mnt/p1/ /bin/bash -c 'echo "deb https://raw.githubusercontent.com/clockworkpi/apt/main/debian/ stable main" | sudo tee  /etc/apt/sources.list.d/clockworkpi.list'
+sudo chroot /mnt/p1/ /bin/bash -c 'sudo apt update'
+
+#install the uconsole cm4 kernel
+sudo chroot /mnt/p1/ /bin/bash -c 'sudo apt install -y uconsole-kernel-cm4-rpi'
+
+# rotate lightdm
+cat << EOF | sudo chroot /mnt/p1
+cat <<EOL >/etc/lightdm/setup.sh
+#!/bin/bash
+xrandr --output DSI-1 --rotate right
+exit 0
+EOL
+EOF
+
+sudo chroot /mnt/p1/ /bin/bash -c 'sudo chmod +x /etc/lightdm/setup.sh'
+sudo chroot /mnt/p1/ /bin/bash -c "sed  -i 's/^#greeter-setup-script=.*/greeter-setup-script=\/etc\/lightdm\/setup.sh/' /etc/lightdm/lightdm.conf"
+
+
+#install 4G stuff !!
+sudo chroot /mnt/p1 /bin/bash -c 'sudo apt install -y pppoe uconsole-4g-util-cm4'
+
+#for 4G extension  !!
+cat << EOF | sudo chroot /mnt/p1
+cat << EOL > /etc/modprobe.d/blacklist-qmi.conf
+blacklist qmi_wwan
+blacklist cdc_wdm
+EOL
+EOF
+
+# forbidden kali kernel package
+
+cat << EOF | sudo chroot /mnt/p1
+cat <<EOL > /etc/apt/preferences.d/kalipi-kernel
+Package: kalipi-kernel
+Pin: release *
+Pin-Priority: -1
+EOL
+EOF
+
+cat << EOF | sudo chroot /mnt/p1
+cat <<EOL > /etc/apt/preferences.d/kalipi-kernel-headers
+Package: kalipi-kernel-headers
+Pin: release *
+Pin-Priority: -1
+EOL
+EOF
+
+#clear chroot env
+cd -
+sudo umount /mnt/p1/dev/pts
+sudo umount /mnt/p1/dev
+sudo umount /mnt/p1/proc
+sudo umount /mnt/p1/sys
+##clear bash 
+sudo rm -rf /mnt/p1/root/.bash_history
+sudo umount /mnt/p1/boot
+sudo umount /mnt/p1
+
+sudo losetup -D /dev/loop1
+
+```
+
+Now we can dd the img into a SD card bigger than 8GB   
+`sudo dd if=kali-linux-2024.1-raspberry-pi-arm64.img of=/dev/sdcard bs=1M status=progress`