Raspberry Pi

sudo apt install rpi-imager

mount -o remount,rw /flash/
LICENSE_KEY=0x12345678
sed -i "s|^#.*decode_MPG2=0x.*$|decode_MPG2=${LICENSE_KEY}|g" /flash/config.txt
reboot

mount /flash -o remount,rw
sed -i 's|#.*hdmi_force_hotplug=1|hdmi_force_hotplug=1|' /flash/config.txt

sudo umount /dev/mmcblk0*
wget -q http://director.downloads.raspberrypi.org/raspbian/images/raspbian-2016-02-29/2016-02-26-raspbian-jessie.zip -P /tmp
unzip -p /home/pako/Downloads/2016-02-26-raspbian-jessie.zip | sudo dd of=/dev/mmcblk0
sync
 
wget -q http://director.downloads.raspberrypi.org/raspbian_lite/images/raspbian_lite-2016-02-29/2016-02-26-raspbian-jessie-lite.zip -P /tmp

for codec in H264 MPG2 WVC1 MPG4 MJPG WMV9 ; do \
    echo -e "$codec:\t$(vcgencmd codec_enabled $codec)" ; \
done

vcgencmd get_config int

URL=http://releases.openelec.tv/OpenELEC-RPi2.arm-8.0.4.img.gz
wget -q "${URL}"  -P /tmp
#wget -q "${URL}" -O - | gzip -d | sudo dd of=/dev/mmcblk0
sudo umount /dev/mmcblk0*
zcat /tmp/${URL##*/} | sudo dd of=/dev/mmcblk0
sync