Bootup Problems

GoogleGroups
1

Hi All,

I somehow messed up with the NAND while trying to update the x-loader
ver 1.42, and now able to get the board working.

Some additional inof:
My Board ver: B7
I am booting from SD card with two partition
ON FAT32 if have MLO, u-boot.bin and uImage
while on the ext3 patition I have angstrom file system

I am not able to figure out the issue. Can someone help me out to fix
this issue. I am attaching the output from console below.

2

It looks like your U-Boot variables have been erased (“Using default environment”) which means it trys to boot from a number of places. It can’t find uImage.bin on the MMC and so eventually tries to boot from NAND. Its finding a kernel in NAND but the rootfs in NAND appears to be damaged.

I would stop the autoboot and set the U-Boot environment variables manually to get it to boot from MMC. If you want to eventually get back to NAND booting then you’ll probably need to rebuild the rootfs…

3

Thanks for the reply.

I could now understant what the problem is. As Michale told it can't
find uImage.bin on the MMC, but I do have uImage on MMC. This means
that there is something wrong with u-boot environment variables. Can
someone help me to set the u-boot environment to boot from MMC and to
fix the rootfs in NAND.

I tried fixing the issue ... but I think I am doing something wrong
and hence not able solve the problem. Any help would be appreciated.

4

Take a look here: http://code.google.com/p/beagleboard/wiki/HowToGetAngstromRunning
Let me know if you are still having problems setting up the SD card and setting environment variables for a proper autoboot…

5

Thanks for the advise .....
I followed the steps given at http://code.google.com/p/beagleboard/wiki/HowToGetAngstromRunning

i.e first few steps to update the x-loader are

        OMAP3 beagleboard.org # mmcinit
        OMAP3 beagleboard.org # fatload mmc 0 0x80200000 x-
load.bin.ift
        OMAP3 beagleboard.org # nand unlock
        OMAP3 beagleboard.org # nand ecc hw
        OMAP3 beagleboard.org # nand erase 0 80000
        OMAP3 beagleboard.org # nand write.i 0x80200000 0 80000

But nand unlock instruction is not recognized on my BB. It gives the
following error message.
could this be the problem .?

6

If I remember correctly the “nand unlock” command isn’t needed any more… Do the nand erase and nand write commands work…? If so then you’ve probably written the new X Loader… If you want to boot from MMC then you don’t need to write U-Boot to NAND, you just need to set the variables and then saveenv.

7

Thanks Evans .... I got the board working ... and you were right "nand
unlock" command is not required any more. The actual problem was
environment variables.

Regards,
Amit