View source for AXIOM Beta/Firmware Flashing

=Notes/Preparations=
The entire camera firmware is stored on a Micro SD card that's plugged into the Microzed. 
To flash a new version of the firmware shut down the AXIOM Beta and take out the Micro SD card.
We recommend to keep one original firmware image around so we suggest acquiring a new Micro SD card with at least 16GB.
Note that if you flash new firmware onto a previously used Micro SD card all data on it will be overwritten, so if you have any files or changes to scripts/software on the AXIOM Beta make sure to first create a backup or copy your data/files somewhere else.

Download the latest Firmware 2.0 from: https://github.com/apertus-open-source-cinema/axiom-firmware/releases 

==Firmware Flashing using Commandline==
You need to first unpack the sd.dd.xz with the xz tool (or some other tool which can handle XZ data).

 <pre class="code">$ xz -k -d sd.dd.xz</pre>

Then you need to write the sd.dd image to the SD card, for example like this (this assumes that /dev/sdx is the device for the new SD card).

 <pre class="code">$ dd if=sd.dd of=/dev/sdx bs=128k status=progress</pre>

After flashing put the Micro SD card into the AXIOM Beta Microzed SD card slot and power up the Beta.

==Firmware Flashing using Etcher GUI==
If yo prefer using a graphical user interface download and use: https://www.balena.io/etcher/ 

After flashing put the Micro SD card into the AXIOM Beta Microzed SD card slot and power up the Beta.

==Resize Main Partition==
Optionally after booting the AXIOM Beta for the first time and logging in you can resize the partition to fill the entire Micro SD card:

run as root (Firmware 2.0):
 axiom_grow_fs.sh

=Firmware Backup=

The entire camera firmware is stored on a Micro SD card that's plugged into the Microzed. To back up the entire firmware we plug the Micro SD card into a Linux PC and do the following:

1. Find out which device the micro SD card is:

 <pre class="code">cat /proc/partitions</pre>

    mount 

... should give you a list of all connected devices. Let's assume in our case that the card is /dev/sdc

2. Make sure the card is unmounted (all 3 partitions):

 <pre class="code">umount /dev/sdc1
umount /dev/sdc2
umount /dev/sdc3</pre>

3. Clone the entire card to a file:

 <pre class="code">ddrescue /dev/sdc sdimage.img sdimage.log</pre>


For Mac and Windows see this guide: http://raspberrypi.stackexchange.com/questions/311/how-do-i-backup-my-raspberry-pi