On Wed, Jan 8, 2014 at 3:34 PM, KurtE <[email protected]> wrote:
>
>
> On Wednesday, January 8, 2014 10:18:22 AM UTC-8, RobertCNelson wrote:
>>
>> > But if I do, should I stick with the 3.8 kernel?  Or 3.12 or 3.13?
>>
>> If you want 'full' cape support stick with 3.8.. If you are just using
>> usb/ethernet with simple capes* (usart/i2c/spi) use 3.13 (i'm working
>> on adding most capes to 3.13 at the moment..)  ignore 3.12.. ;)
>
>
> Sounds good, I only have one of the breadboard capes which I have enabled
> two USARTS on.  so 3.13
> sounds like where I should start playing.
>
>>
>> > My assumption is the build scripts assume I am running linux.  Can dual
>> > boot
>> > to this on my main dev machine to Linux Mint, or could use my NUC which
>> > I
>> > think right now I have running Ubuntu 13.04.
>>
>> The scripts assume linux, mostly tested on debian jessie, but works in
>> ubuntu..
>>
>> Note the "image-builder" works best native on arm hardware.. (qemu is
>> too bit rotten for 100% reliably between distro versions)
>
>
> So to build for my one BBBk,  I would be better off doing the build on
> another ARM based machine running Debian.  Probably my best option would be
> to use my Odroid U2?  It has a 16gb emmc on it and i can plug in a
> microsd...   I am currently running Ubuntu on it, but can install Debian.

Ubuntu is fine.. Remember this is just the "image-builder" it uses
debootstrap in a chroot to create a new fresh/clean image..

The kernel on the other hand.. you can build anywhere, native, cross, etc..

>> > A few more things to investigate:
>> > 1) If I build an image and write it to an SD card, can I try it out
>> > (boot
>> > off of it) without it overwriting the EMMC?
>>
>> There will be a traditional "flasher" which will overwrite the eMMC
>> and a secondary "4gb img" which you can dump to your microSD and it'll
>> run on that.
>
> So  if I am reading this correct, Each time will overwrite the eMMC... I was
> hoping to be able to maybe have the ability to choose either boot emmc or
> boot SD.  I am probably missing something.

Well technically it's only one file different in the first boot partition:

https://github.com/beagleboard/image-builder/blob/master/scripts_device/am335x_evm.sh#L54

So if it finds "flash-eMMC.txt" in the first partition it'll flash the
eMMC... It's easier to just push out two images with different
functions then explainnig.. "mount ; rm flash-eMMC.txt ; "

Regards,

-- 
Robert Nelson
http://www.rcn-ee.com/

-- 
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