then plug the power in the board, and you should see the bootloader:
U-Boot 2015.07 (Aug 31 2015 - 15:50:21 +0200)
DRAM: 944 MiB
WARNING: Caches not enabled
RPI 2 Model B
MMC: bcm2835_sdhci: 0
reading uboot.env
In: serial
Out: lcd
Err: lcd
Net: Net Initialization Skipped
No ethernet found.
Hit any key to stop autoboot: 0
ubuntu@raspi2:~$ uname -a
Linux raspi2 4.4.0-1029-raspi2 #36-Ubuntu SMP Wed Oct 19 14:38:48 UTC 2016 armv7l armv7l armv7l GNU/Linux
ubuntu@raspi2:~$ ls -la /boot/firmware/*.dtb
-rwxr-xr-x 1 root root 13430 Oct 26 15:18 /boot/firmware/bcm2709-rpi-2-b.dtb
this on -1029.36, while if i update to -1030.37 the new dtb is bigger and it blows the space at the beginning of the memory:
ubuntu@raspi2:~$ ls -la /boot/firmware/*.dtb
-rwxr-xr-x 1 root root 15356 Oct 26 18:18 /boot/firmware/bcm2709-rpi-2-b.dtb
and i bet on console you will end up with something like this:
U-Boot 2015.07 (Aug 31 2015 - 15:50:21 +0200)
DRAM: 944 MiB
WARNING: Caches not enabled
RPI 2 Model B
MMC: bcm2835_sdhci: 0
reading uboot.env
In: serial
Out: lcd
Err: lcd
Net: Net Initialization Skipped
No ethernet found.
Hit any key to stop autoboot: 0
libfdt fdt_check_header(): FDT_ERR_BADMAGIC
No FDT memory address configured. Please configure
the FDT address via "fdt addr <address>" command.
Aborting!
6682376 bytes read in 12755 ms (510.7 KiB/s)
Kernel image @ 0x1000000 [ 0x000000 - 0x65f708 ]
ERROR: Did not find a cmdline Flattened Device Tree
Could not find a valid device tree
U-Boot>
Can you connect a serial cable to the board? You need a TTL serial and it connects like this:
http:// workshop. raspberrypiaust ralia.com/ usb/ttl/ connecting/ 2014/08/ 31/01-connectin g-to-raspberry- pi-via- usb/
then on you pc:
screen /dev/ttyUSB0 115200
then plug the power in the board, and you should see the bootloader:
U-Boot 2015.07 (Aug 31 2015 - 15:50:21 +0200)
DRAM: 944 MiB
WARNING: Caches not enabled
RPI 2 Model B
MMC: bcm2835_sdhci: 0
reading uboot.env
In: serial
Out: lcd
Err: lcd
Net: Net Initialization Skipped
No ethernet found.
Hit any key to stop autoboot: 0
ubuntu@raspi2:~$ uname -a *.dtb bcm2709- rpi-2-b. dtb
Linux raspi2 4.4.0-1029-raspi2 #36-Ubuntu SMP Wed Oct 19 14:38:48 UTC 2016 armv7l armv7l armv7l GNU/Linux
ubuntu@raspi2:~$ ls -la /boot/firmware/
-rwxr-xr-x 1 root root 13430 Oct 26 15:18 /boot/firmware/
this on -1029.36, while if i update to -1030.37 the new dtb is bigger and it blows the space at the beginning of the memory:
ubuntu@raspi2:~$ ls -la /boot/firmware/ *.dtb bcm2709- rpi-2-b. dtb
-rwxr-xr-x 1 root root 15356 Oct 26 18:18 /boot/firmware/
and i bet on console you will end up with something like this:
U-Boot 2015.07 (Aug 31 2015 - 15:50:21 +0200)
DRAM: 944 MiB
WARNING: Caches not enabled
RPI 2 Model B
MMC: bcm2835_sdhci: 0
reading uboot.env
In: serial
Out: lcd
Err: lcd
Net: Net Initialization Skipped
No ethernet found.
Hit any key to stop autoboot: 0
libfdt fdt_check_header(): FDT_ERR_BADMAGIC
No FDT memory address configured. Please configure
the FDT address via "fdt addr <address>" command.
Aborting!
6682376 bytes read in 12755 ms (510.7 KiB/s)
Kernel image @ 0x1000000 [ 0x000000 - 0x65f708 ]
ERROR: Did not find a cmdline Flattened Device Tree
Could not find a valid device tree
U-Boot>
is that the case?