Not able to load the new kernel on BBB

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1

Hey,

I have removed the existing kernel and files system from BBB. I have downloaded prebuild image of angstrom kernel and file-system from below link.
https://s3.amazonaws.com/angstrom/demo/beaglebone/Angstrom-Cloud9-IDE-GNOME-eglibc-ipk-v2012.12-beaglebone-2013.06.20.img.xz

and followed the procedure to boot through SD Card given by the following link.

http://www.beagleboard.org/Getting%20Started#update

The 4 LED,s get lit up if i hold down the switch after that the USR0 and USR2 LED’s keep blinking but nothing happens, still am not able to boot my board.
Any help will be highly appreciated.

Thanks and Regards

2

Can you get a serial console connected?

http://circuitco.com/support/index.php?title=BeagleBone_Black_Accessories#Serial_Debug_Cables

If so, then you should be able to boot the flasher and log in via the serial cable and see what’s going on.

I think the issue is because you removed the filesystem from the BBB first. I have been working on building my own flasher image and I found that the stock flasher image didn’t have some of the necessary tools, namely blockdev and kpartx. In my case, it didn’t matter because the eMMC was already set up, the script got errors but was still able to unpack the root fs image.

You can then verify this theory by manually running the flasher (execute /usr/bin/emmc.sh) and look for errors. If I’m right about the missing blockdev & kpartx, then you should be able to connect the BBB to the ethernet, and use opkg to install blockdev and kpartx to the flasher image and retry the emmc.sh script. For more information, take a look at this page that describes how the flasher works:

http://www.crashcourse.ca/wiki/index.php/BBB_software_update_process

If you don’t have a serial cable, but you have a Linux “host” system (e.g. a VM), you can mount the flasher SD card (the second, linux partition) and look for kpartx and blockdev tools on the mounted fs. You’d have to get hold of the ipks for blockdev and kpartx and somehow install them from your Linux host.

Hope this helps.

-W.

3

Hi,
I have got the same problem with new kernel on BBB, I have downloaded the image of angstrom kernel
http://beaglebone/Angstrom-Cloud9-IDE-GNOME-eglibc-ipk-v2012.12-beaglebone-2013.06.20.img.x
and followed the procedure to boot through SD card as given in Beagleboard.org-getting started. The 4 LED’s lid up when I powered on the board and then realized
the BOOT/USER botton, after this only 3 LED’s are blinking USR0,USR1,USR2 and nothing happens.
Can you suggest how can we know weather the flashing is in process or how to fix this bug?

4

Hi,
I have the same problem,I have not deleted any files. I have downloaded image of angstrom kernel and file-system from below link.
https://s3.amazonaws.com/angstrom/demo/beaglebone/Angstrom-Cloud9-IDE-GNOME-eglibc-ipk-v2012.12-beaglebone-2013.06.20.img.xz

and followed the procedure to boot through SD Card given by the following link.

http://www.beagleboard.org/Getting

Initially I have been holding the BOOT/USER button and power up the BBB board all 4 LED’s will lid up,
By then I release the BOOT button, there after only 3 LED’s start blinking USR0, USR1 and USR2 nothing happens.
Can you please suggest what has to be done to boot it properly?

Thanks & Regards
Harsha