<div dir="ltr">Couldn't we just put it in uEnv.txt and have uboot read it from there like we do with uenvcmd and bootpart?</div><div class="gmail_extra"> <div class="gmail_quote">On Mon, Jul 6, 2015 at 10:56 AM, Oliver Grawert <<a href="mailto:ogra@ubuntu.com" target="_blank">ogra@ubuntu.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">hi, we are currently facing a problem of having hardcoded console= options on the kernel commandline ... (grub images currently default to: "console=ttyS0 console=tty0" (the first option applies to kernel while the second sets the output console for userspace) while u-boot images default to whatever serial console device an embedded board uses) to change your console= option you theoretically would have to build your own gadget snap just for that one option modified ... ... or we would have one gadget snap per possible option in the store so the user can pick the "amd64-serial-console.snap" for his serial snappy project ... this would indeed make us end up with tons of identical snaps that only have a single option changed ... i would like us to find a way how we can set the console option dynamically at image creation time for this case ... technically grub based images do not need a console= option set by default (they will resort to tty0 which is fine for VM as well as for real hardware) but you might want to use some x86 based embedded board that only offers serial ports for debugging or logging in ... u-boot images should default to whatever the HW requires. but while i do not expect us to use a beaglebone for any graphical images (since it is simply not designed for this), i expect that RPi2 users will likely want to be able to use graphical consoles (and a boot splash etc) in case they run some desktop or some media playback tool on their snappy install. while we technically could use "snappy config" to adjust this, this is practically only possible after you booted ... so you would have to boot blind to an invisible console to change the default setting ... the only sane option i see is to add some option to ubuntu-device-flash so this value can be modified at image creation time before the first boot ... but this seems to be unwanted either (u-d-f already has a plethora of options and slowly gets crowded with them) since i don't see an easy path out of this dilemma, i was wondering if anyone else has any good idea what we can do here ... ciao oli -- snappy-devel mailing list <a href="mailto:snappy-devel@lists.ubuntu.com">snappy-devel@lists.ubuntu.com</a> Modify settings or unsubscribe at: <a href="https://lists.ubuntu.com/mailman/listinfo/snappy-devel" rel="noreferrer" target="_blank">https://lists.ubuntu.com/mailman/listinfo/snappy-devel</a> </blockquote></div> </div>