Hi guys,

Once I duplicated linaro-ubuntu-desktop image into SD card following the instruction on linaro website and it works fine. Now I need to patch the kernel so that I compiled the patched kernel and copy the kernel image into /boot of SD card but my pandaboard doesn't boot up. Below is more detail steps I did so please let me know what I did wrong. Also if you have an instruction, then it also might be really helpful.

1. I'm using PandaBoard ES. To start the board, I just dd linaro-ubuntu-desktop image to SD card following these steps (http://releases.linaro.org/images/):

# These values will change based on your system

$ SDCARD=/dev/ #sdcard could be something sdb or mmcblk0

$ IMGFILE=overo-nano.img

$ gunzip ${IMGFILE}.gz

$ dd bs=64k if=${IMGFILE} of=${SDCARD}

Then the linaro ubuntu works on the PandaBoard ES well. In detail, the version of this ubuntu 12.02 and kernel version is 3.1.1-8-linaro-lt-omap.

2. Next, I cloned your git repository(git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc.git) to get kernel including remoteproc patch. Since there's no .config file I just copy the config file of 3.2-rc4 on here (http://elinux.org/Panda_How_to_kernel_3_2_rcx) wihch is the version matching the kernel version on your git repository. And then I compile the kernel and modules to get an uImage and install modules with commands below (also explains http://elinux.org/Panda_How_to_kernel_3_2_rcx), and copy uImage to /boot on SD card and modules /rootfs/lib/ on SD card. I used arm-linux-gnueabi-gcc rather than arm-none-linux-gnueabi-gcc.

Then compile like so:

make ARCH=arm CROSS_COMPILE=Path_to_your/arm-2010q1/bin/arm-none-linux-gnueabi- uImage

Then compile the modules like so:

make ARCH=arm CROSS_COMPILE=/home/kenm/Panda/arm-2010q1/bin/arm-none-linux-gnueabi- modules

"Install" the modules to somewhere convenient:

make ARCH=arm CROSS_COMPILE=/home/kenm/Panda/arm-2010q1/bin/arm-none-linux-gnueabi- INSTALL_MOD_PATH=../testlib_omap modules_install

3. Then I put SD card to the Panda Board but it's suspending with the booting logs below.

U-Boot SPL 2011.12-rc1 (Mar 01 2012 - 20:03:59)

Texas Instruments OMAP4460 ES1.1

OMAP SD/MMC: 0

reading u-boot.img

U-Boot 2011.12-rc1 (Mar 01 2012 - 20:03:59)

CPU : OMAP4460 ES1.1

Board: OMAP4 Panda

I2C: ready

DRAM: 1 GiB

WARNING: Caches not enabled

MMC: OMAP SD/MMC: 0

Using default environment

In: serial

Out: serial

Err: serial

Net: No ethernet found.

Hit any key to stop autoboot: 0

reading uEnv.txt

** Unable to read "uEnv.txt" from mmc 0:1 **

reading boot.scr

514 bytes read

Loaded script from boot.scr

Running bootscript from mmc0 ...

## Executing script at 82000000

reading uImage

3249584 bytes read

reading uInitrd

1877535 bytes read

reading board.dtb

340 bytes read

## Booting kernel from Legacy Image at 80200000 ...

Image Name: Linux-3.2.0-rc4-00248-gb835c0f-d

Image Type: ARM Linux Kernel Image (uncompressed)

Data Size: 3249520 Bytes = 3.1 MiB

Load Address: 80008000

Entry Point: 80008000

Verifying Checksum ... OK

## Loading init Ramdisk from Legacy Image at 81600000 ...

Image Name: initramfs

Image Type: ARM Linux RAMDisk Image (uncompressed)

Data Size: 1877471 Bytes = 1.8 MiB

Load Address: 00000000

Entry Point: 00000000

Verifying Checksum ... OK

## Flattened Device Tree blob at 815f0000

Booting using the fdt blob at 0x815f0000

Loading Kernel Image ... OK

reserving fdt memory region: addr=9d000000 size=3000000

Using Device Tree in place at 815f0000, end 815f3153

Starting kernel ...

Uncompressing Linux... done, booting the kernel.

Do you have any guess what I have missed or didn't do something? Any of your advise would be more than welcome. Thanks for your patches, and I really appreciate your consideration and help.

Thanks,

Jaeyeon