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Zedboard booting up issue

Former Member

Hi,

Working with xillinux linux distribution to boot the zedboard I have a problem.

1.The board boots fine works well but hangs up frequently.

2. On re-boot the boot loader displays a message that there is an error while decompressing the kernel image and stops booting.

3. Each and every time even after properly shutting down the board this error happens and the board boots up fine if the boot partition is formatted and freshly created again.

Can any one please suggest why this is happening with the board
working with Z7000 APSoC 

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    Hi,

    Thanks for your checkup. It would be nice trying out another thing. On the Zedboard, running Xillinux-1.3, please type at shell prompt:

    dd if=/dev/urandom of=rndfile bs=1k count=512k

    This will take 7 minutes or so, and create a 512 MB file. It has to be that big to make sure that the disk cache is flushed.

    Then type:
    while [ 1 ] ; do cat rndfile > rndfile-copy; cmp rndfile rndfile-copy || break ; echo OK $((i++)) $(date); done

    This bash oneliner runs indefinitely or until there's a difference between a file and its copy. It should, of course run forever. Or until you stop it, preferably no sooner than after a few hours.

    Each round takes about two and a half minutes. I believe that if there's a problem with the MMC interface, something should happen on this test.

    I should mention that this causes a certain wear on the SD card, but I suppose a few hours shouldn't make any difference.

    And the SD card must have at least 1 GB of free space. The Getting Started guide explains how to resize the partition, if you haven't done that yet.

    Thanks again,
       Eli

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  • 0

    Hi,

    Thanks for your checkup. It would be nice trying out another thing. On the Zedboard, running Xillinux-1.3, please type at shell prompt:

    dd if=/dev/urandom of=rndfile bs=1k count=512k

    This will take 7 minutes or so, and create a 512 MB file. It has to be that big to make sure that the disk cache is flushed.

    Then type:
    while [ 1 ] ; do cat rndfile > rndfile-copy; cmp rndfile rndfile-copy || break ; echo OK $((i++)) $(date); done

    This bash oneliner runs indefinitely or until there's a difference between a file and its copy. It should, of course run forever. Or until you stop it, preferably no sooner than after a few hours.

    Each round takes about two and a half minutes. I believe that if there's a problem with the MMC interface, something should happen on this test.

    I should mention that this causes a certain wear on the SD card, but I suppose a few hours shouldn't make any difference.

    And the SD card must have at least 1 GB of free space. The Getting Started guide explains how to resize the partition, if you haven't done that yet.

    Thanks again,
       Eli

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