<div dir="ltr"><div>Thanks!. Nope, doesn't help. Still stuck at the same place. Copied the u-boot.cfg from my source at [1]. The size of uboot.env as present in pi2.moved is 131072 which is 128K and now I have modified the size to SZ_128K. [1] <a href="http://paste.ubuntu.com/16221874/">http://paste.ubuntu.com/16221874/</a> </div>_Swami </div><div class="gmail_extra"> <div class="gmail_quote">On Wed, May 4, 2016 at 2:59 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, Am Dienstag, den 03.05.2016, 17:34 -0700 schrieb Swami: > Thanks. I synced the uboot code from upstream source tree[1] and > applied the config changes[2] into include/configs/rpi.h, as I am > trying to use Raspberry Pi2 as reference board. Now, I wanted to see > if my custom generated uboot.bin works on the board. So, I downloaded > the rpi2 snap source from [3], replaced the u-boot.bin > into /snappy-systems/pi2.moved/boot-assets/ and renamed it uboot.bin. > Ran snappy build in main pi2.moved directory to generate the .snap > file. Using this snap file and the device tar ball from [4], created > the image file using below command. > sudo ubuntu-device-flash core 15.04 --oem mycustom_2.1_all.snap > --developer-mode --device-part=device-pi2-0.16.tar.xz -o pi2.img. > Flashing this image, goes to u-boot, but doesn't boot the kernel. > Also, don't see the environment variables being loaded due to below > error: > > reading uboot.env > *** Warning - bad CRC, using default environment you are missing: #define CONFIG_ENV_SIZE SZ_128K in your uboot config patch ... by default the rpi only sets it to 16k and since uboot.env is a binary blob, size (info) matters ;) ciao oli </blockquote></div> </div>