RAUC v1.0 Released
Four days before Christmas Pengutronix prepared a very special present that probably many of you have been waiting for: The 1.0 version of RAUC!
This finally visibly underlines the maturity RAUC already had in the prior releases.
This v1.0 release adds several enhancements and new features concerning signing and signature handling. One of the most important improvements is the support for passing keys/certificates stored on PKCS#11 tokens (e.g. for using a smart card or HSM). Also the boot selection interface gained several fixes and enhancements, especially concerning the U-Boot integration that now implements the full feature set of obtaining and setting the boot status.
Several extensions of the D-Bus API and some code refactoring now allow 'rauc status' to fully work over D-Bus (if enabled) and finalize the clear separation between client and service.
Another topic that got a lot attention is easing RAUC debugging by providing more targeted debugging and error messages, adding documentation, etc.
It is important to note that also several potential issues for the actual installation process were fixed, e.g. by adding proper fsync() handling, using O_EXCL for opening devices, or by fixing uid/gid handling during tar extraction.
RAUC now also fully supports using file:// URIs and allows to open bundles that have a custom file name extensions for cases where this is really mandatory of any reason.
With the 1.0 release we now also support OpenSSL 1.1.
The rest are 'only' minor new options, bug fixes, documentation updates, typo fixes, etc.
Thanks to all contributors since v0.4: Ahmad Fatoum, Alexander Dahl, Arnaud Rebillout, Bastian Stender, Emmanuel Roullit, Enrico Jörns, Jan Lübbe, Jan Remmet, Jim Brennan, Marcel Hamer, Matthias Bolte, Michael Heimpold, Philip Downer, Philipp Zabel, Rasmus Villemoes, Thomas Petazzoni, Timothy Lee, Ulrich Ölmann, Vyacheslav Yurkov, Yann E. MORIN
RAUC v1.9 Released
"Getting things off the ground" could be the motto for the v1.9 release of RAUC. The support for custom metadata in the manifest got a step further, a new, more flexible, D-Bus API for bundle inspection paved the way for obtaining more detailed information, and a new manifest hash marks the first of several planned changes for configurable event logging. However, one of the most invasive changes happened under the hood: We have started the transition from autotools to meson as a build system.
Saving Download Bandwidth with RAUC Adaptive UpdatesBased on RAUC's HTTP(S) streaming capabilities, adaptive updates are a generic concept in RAUC to allow saving download bandwidth and form an alternative to conventional delta updates. This post introduces both the generic concept as well the first implemented method 'block-hash-index'.
RAUC v1.8 Released
When September ends and summer is over, it's a good opportunity to take advantage of the shorter days and comfortably update to the latest RAUC version we have just released into the wild: v1.8