Project proposal 2013


Atilla Filiz
 

Generic upgrade infrastructure for embedded systems.

; Summary: Generic upgrade infrastructure for embedded systems.

; Proposer: Atilla Filiz, Arnout Vandecappelle

== Description ==

Experience as an embedded software contractor shows that most clients
need a means to upgrade their devices in the field. Often these
solutions are ad-hoc, and need to be redone for each project,
although requirements are similar.

A collection of scripts and permissively licensed source code will help
device manufacturers to rapidly and safely implement a secure,
fail-safe,
atomic upgrade system for their devices.

The infrastructure will allow an embedded system to have one backup
firmware, and one or two main firmware partitions. When a new firmware
is downloaded and written as a main firmware, the upgrade system makes
sure
the device can boot. If the upgrade fails due to power, file corruption
or
other factors, the system recovers by booting the previous firmware or
a
failsafe firmware to retry upgrading.

Having this feature will prevent reinventing the wheel for each new
product when it comes to upgrading.

== Related work ==
* FOSDEM/ELC-E Presentation:
http://mind.be/content/Presentation_Upgrade-without-Bricking.pdf
* Generic project repository with detailed documentation:
https://gitorious.org/gupies
* CGI based project repository:
https://gitorious.org/embedded-linux-firmware-upgrade-tool

== Scope ==
A basic system can be implemented and unit tested in six person-weeks.
This includes support
for a single bootloader (U-Boot), for overwriting an MTD partition and a
UBI volume. This also
includes a wire format for the upgrade image and documentation for the
platform-specific part,
needed per project. Additional partition types (e.g. mbr) or bootloaders
(e.g. barebox) require
additional effort.

== Contractor Candidates ==
Arnout Vandecappelle (Essensium/Mind)

== Comments ==


[[Category:Project proposals 2013]]

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