RAUC v1.2 Released

Enrico Jörns | | RAUC

Download v1.2 release of RAUC

Right before the ELC-E starts tomorrow, we used the time in the hotel to bake a brand new RAUC release for you (and your embedded devices)! Well, here it is: RAUC v1.2


Are there any good reasons for updating to it? Of course! As always there is a good mix of bug fixes and new features your setups will benefit from:

We fixed some leaking file descriptors that may have caused RAUC to be killed with ‘Too many open files’ errors when executing a significant number of 'rauc status' or 'rauc install' actions without reboot.

RAUC now also will abort earlier in case of errors that are detectable before actually entering the atomic region and writing slots. This allows RAUC to fail earlier without leaving behind a disabled slot group with incomplete contents.

Another noteworthy change is that we changed the default of one of RAUC's most discussed optimization features: The skipping of slot updates where the intended and the current slots hash matches exactly. The past showed that this behaviour was often perceived as 'unexpected'. It is now disabled by default but may be explicitly enabled with install-same=false.


The command line interface received some new features and polishing so that we now have a more structured status output and an optional installation progress, activatable with rauc install --progress [...].

For devices that boot from the first MBR partition, RAUC now also supports atomic bootloader updates by manipulating the MBR to switch between redundant partition regions.

Thanks to all contributors since v1.1: Bastian Krause, Ellie Reeves, Enrico Jörns, Fabian Knapp, Gaël PORTAY, Jan Lübbe, Leif Middelschulte, Michael Heimpold , Stephan Michaelsen , Thomas Hämmerle, Thorsten Scherer, Tobias Junghans, Uwe Kleine-König

Further Readings

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Tutorial: Start With RAUC Bundle Encryption Using meta-rauc

Enrico Jörns | | RAUC, Yocto, tutorial

In its current master branch, RAUC now supports encrypted Bundles. This tutorial will introduce you to the basics of using encryption in RAUC and show how to use it in a simplified Yocto setup with the meta-rauc Layer.

RAUC v1.6 Released

Enrico Jörns | | rauc

While major changes are about to come, the RAUC v1.6 release already paves the way under the hood. Built-in streaming support will be one of the next features built on top of the 'verity' bundle format in RAUC.