Board won't flash

Can anyone help figure out what is going wrong here?

mmc1: new high speed MMC card at address 0001
[ 10.497469] mmcblk1: mmc1:0001 MMC02G 1.78 GiB
[ 10.502697] mmcblk1boot0: mmc1:0001 MMC02G partition 1 1.00 MiB
[ 10.509831] mmcblk1boot1: mmc1:0001 MMC02G partition 2 1.00 MiB
[ 10.518332] mmcblk1: unknown partition table
[ 10.524548] mmcblk1boot1: unknown partition table
[ 10.531366] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[ 10.540032] mmcblk1boot0: unknown partition table
[ 10.545638] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
[ 10.557100] devtmpfs: mounted
[ 10.560585] Freeing init memory: 240K
[ 10.612364] usb 1-1.2: new high-speed USB device number 3 using musb-hdrc
[ 10.731178] usb 1-1.2: New USB device found, idVendor=148f, idProduct=5370
[ 10.738415] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 10.746055] usb 1-1.2: Product: 802.11 n WLAN
[ 10.750607] usb 1-1.2: Manufacturer: Ralink
[ 10.754990] usb 1-1.2: SerialNumber: 1.0
grep: /proc/cmdline: No such file or directory
[ 10.989176] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000200
[ 10.989176]
[ 10.998766] [] (unwind_backtrace+0x1/0x98) from [] (panic+0x5b/0x158)
[ 11.007319] [] (panic+0x5b/0x158) from [] (do_exit+0x5f5/0x674)
[ 11.015311] [] (do_exit+0x5f5/0x674) from [] (do_group_exit+0x27/0x6c)
[ 11.023950] [] (do_group_exit+0x27/0x6c) from [] (__wake_up_parent+0x1/0x18)
[ 11.033132] [] (__wake_up_parent+0x1/0x18) from [] (ret_fast_syscall+0x1/0x46)

The problem is there: ^^^

Regards,

Indeed, but why would this be happening?

3.8.13-bone62 is the version…

Considering i haven't released any 'flasher' images with that kernel.
You are obviously doing something on your own to create a custom
image. Since I don't have a crystal ball.

Tell us what you are doing...

Otherwise, how are we sup-post to help?

Regards,

OK, here goes :slight_smile:

  • Downloaded BBB-eMMC-flasher-ubuntu-14.04-console-armhf-2014-07-06-2gb and flashed to SD card

OK, here goes :slight_smile:

Downloaded BBB-eMMC-flasher-ubuntu-14.04-console-armhf-2014-07-06-2gb and
flashed to SD card

git clone https://github.com/RobertCNelson/bb-kernel.git
cd bb-kernel/
git checkout origin/am33x-v3.8 -b tmp
./build_kernel.sh

Deselected TI ethernet drivers in the menuconfig. Thats all.
Waited for build to complete.
tools/install_kernel.sh

So, at this point, you've removed the "initrd.img" from the flasher
microSD card...

Waited for copy
Ejected and inserted into BBB
Attempted boot
Cried
Posted asking for help

The "flasher" relies on a lot of things to be setup properly. By
removing one, it falls apart like a house of cards..

Regards,

If all you are doing is testing kernel options.. Ignore the eMMC
(infact clear it out: sudo dd if=/dev/zero of=/dev/mmcblk1)

Then just use the microSD image and update the kernel like above..

Once you get your microSD working just right, we can talk again about
the "flasher"...

Regards,

Brilliant, I was just about to ask that. So I have my kernel build honed now, and can get our board without ethernet booting by removing the TI drivers, there are other kernel options I will play with later.

So, to sort out a flasher, or use a non flasher as a flasher, even manually? (I have had no luck simply touching the trigger file…)

Much appreciated :slight_smile:

It's no longer triggered. Instead it's ran in single user mode on
startup: cmdline= init=xyz.

Thus it's much more reliable.

But much funner to debug. You need a serial connection, and you need
to understand what it's expecting along with what it is doing.

https://github.com/RobertCNelson/boot-scripts/blob/master/tools/eMMC/init-eMMC-flasher-v2.sh

Regards,

OK, cool. I’m using a serial connection. So to clarify we are talking about how to make a non flasher image flash to the internal NAND. Great :slight_smile:

So just xyz, literally?

Awesome :slight_smile: I’ll try that and let you know how I get on in the morning. It’s beer time here across the pond :slight_smile:

Thanks as always.

OK, cool. I'm using a serial connection. So to clarify we are talking
about how to make a non flasher image flash to the internal NAND. Great :slight_smile:

Not sure what we are talking about...

So just xyz, literally?

fingers are lazy...

https://github.com/RobertCNelson/omap-image-builder/blob/master/tools/setup_sdcard.sh#L741

Awesome :slight_smile: I'll try that and let you know how I get on in the morning.
It's beer time here across the pond :slight_smile:

Regards,

OK, thanks. At least I have a plan and some things to try in the morning :slight_smile:

OK, so my board is working well running off the SD card (non ‘flasher’ with a patched 3.8.13-bone62).

Changing the cmdline to init=/opt/scripts/tools/eMMC/init-eMMC-flasher-v2.sh causes:

grep: /proc/cmdline: No such file or directory

So the script is failing here: https://github.com/RobertCNelson/boot-scripts/blob/master/tools/eMMC/init-eMMC-flasher-v2.sh#L34

I guess there is more to making a non flashing image a flashing one. perhaps I could just flash the eMMC manually?

Any clues?

Hi Robert,

I’m starting to worry I will never get this image to the eMMC. Can you help?

Sorry to nag…

So I booted off the patched SD card, cd to /opt/scripts and did a git pull.
I commented out the cmdline check and ran tools/eMMC/init-eMMC-flasher-v2.sh
Seemed to work fine, but the board stalls on boot from the eMMC, no error, no panic, just stops. Great.
I’m guessing the scripts needs to be run from boot. Can’t do that though as I get the /proc/cmdline error.

Rock ----> ME <---- Hard place

On your microSD, what are the contents of /boot/uEnv.txt

Regards,

uname_r=3.8.13-bone62
#dtb=
#cmdline=quiet
cmdline=init=/opt/scripts/tools/eMMC/init-eMMC-flasher-v2.sh
optargs=quiet capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN capemgr.enable_partno=BB-BONE-AUDI-TE

Run this first..

sudo update-initramfs -c -k `uname -r`

to regenerate /boot/initrd.img-`uname -r`

Then reboot with the flashing cmdline enabled..

Regards,

The flash is running!!! Fingers crossed!

Thank you SO MUCH.

Yep, that worked 100%!!!

Thanks again! To help other people I have updated a blog post I already had with all this:
http://trisblog.tumblr.com/post/87884207700/patch-the-bbb-kernel-on-a-non-flashing-sd-card-for