On Mon, Nov 14, 2016 at 03:50:52PM +0100, Oliver Grawert wrote: > On Mo, 2016-11-14 at 01:21 +0000, Daniel Toussaint wrote: > > I am working on a board similar to Beaglebone Black, however instead > > of SD/eMMC it is booting from NAND flash directly. As far as I can > > see in the documentation there is no way yet to boot a Snappy image > > in this fashion, is support for this planned ? Is there anything I > > can do to help out with that ?
> > Meanwhile, I am considering using the Yocto version of snapcraft to > > package the apps, so that we can later migrate to from the current > > Yocto image to Snappy. > > Thanks for your comments. > currently the boot process relies heavily on filesystem labels for > finding the various (namely system-boot and writable) partitions. > do your NAND devices expose labels you set in /dev/disk/by-label ? > if thats the case it might work to use ubuntu-image with the --workdir > option which keeps the different partition images around in the > specified dir. you could then just grab them from there and flash then > to the respective NAND pratitions. > if the labels are not exposed this will need a bunch of changes in the > code to allow some overrides (i.e. via kernel cmdline options), for > this we will need a wishlist bug as the first step :) It is an explicit element of the ubuntu-image design that a gadget snap should be able to emit multiple images for a given model, so that these can be written out separately across e.g. an SD card and a NAND device. However, the current implementation only allows for an image containing a partition table, and filesystems within that. Barry, Gustavo, do we need to extend gadget.yaml semantics here to support some sort of 'schema: raw' for a volume, for the NAND case? -- Steve Langasek Give me a lever long enough and a Free OS Debian Developer to set it on, and I can move the world. Ubuntu Developer http://www.debian.org/ slanga...@ubuntu.com vor...@debian.org
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