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What linux core minimal image is required for AVNET MicroZed board?

dexterous.me82

I have an AVNET microzed board  PB-AES-Z7MB-7Z010-G board.

After building the operating system - Linux for this device - I get the following error in my console.

 

 

    U-Boot SPL 2019.01 (Dec 04 2019 - 05:18:17 +0000)

    mmc boot

    Trying to boot from MMC1

    spl_load_image_fat_os: error reading image system.dtb, err - -2

    spl_load_image_fat: error reading image u-boot.img, err - -2

    SPL: failed to boot from all boot devices

    ### ERROR ### Please RESET the board ###

    U-Boot SPL 2019.01 (Dec 04 2019 - 05:18:17 +0000)

    mmc boot

    Trying to boot from MMC1

 

 

 

 

 

Here is how I have build the Operating System.

 

 

Yocto Source code and meta recipes

 

 

    git clone git://git.yoctoproject.org/poky

    cd poky

    git checkout -b warrior

    git clone  git://git.yoctoproject.org/meta-xilinx

    cd meta-xilinx/

    git checkout -b warrior

    cd ..

    git clone https://github.com/openembedded/meta-openembedded.git

    cd meta-openembedded/

    git checkout -b warrior

    cd ..

   

   

    source oe-init-build-env

   

   

   

    ## Changed the architecture to --

    gedit conf/local.conf

    MACHINE ??= "microzed-zynq7"

   

    Added the meta-layer in the bblayer

   

    /home/s/Yocto_Xilinx/poky/meta-xilinx/meta-xilinx-bsp

    /home/s/Yocto_Xilinx/poky/meta-openembedded/meta-oe \

 

 

Final build command was

#

 

 

    bitbake core-image-minimal

 

 

    ls -l tmp/deploy/images/microzed-zynq7/

    total 22992

    lrwxrwxrwx 2 s s      34 Dec  3 21:25 boot.bin -> boot.bin-microzed-zynq7-2019.01-r0

    lrwxrwxrwx 2 s s      34 Dec  3 21:25 boot.bin-microzed-zynq7 -> boot.bin-microzed-zynq7-2019.01-r0

    -rw-r--r-- 2 s s   84104 Dec  3 21:25 boot.bin-microzed-zynq7-2019.01-r0

    -rw-r--r-- 2 s s 4074496 Dec  3 21:26 core-image-minimal-microzed-zynq7-20191204041353.rootfs.cpio

    -rw-r--r-- 2 s s 2379781 Dec  3 21:26 core-image-minimal-microzed-zynq7-20191204041353.rootfs.cpio.gz.u-boot

    -rw-r--r-- 2 s s     814 Dec  3 21:26 core-image-minimal-microzed-zynq7-20191204041353.rootfs.manifest

    -rw-r--r-- 2 s s 2384005 Dec  3 21:26 core-image-minimal-microzed-zynq7-20191204041353.rootfs.tar.gz

    -rw-r--r-- 2 s s  226135 Dec  3 21:26 core-image-minimal-microzed-zynq7-20191204041353.testdata.json

    lrwxrwxrwx 2 s s      60 Dec  3 21:26 core-image-minimal-microzed-zynq7.cpio -> core-image-minimal-microzed-zynq7-20191204041353.rootfs.cpio

    lrwxrwxrwx 2 s s      70 Dec  3 21:26 core-image-minimal-microzed-zynq7.cpio.gz.u-boot -> core-image-minimal-microzed-zynq7-20191204041353.rootfs.cpio.gz.u-boot

    lrwxrwxrwx 2 s s      64 Dec  3 21:26 core-image-minimal-microzed-zynq7.manifest -> core-image-minimal-microzed-zynq7-20191204041353.rootfs.manifest

    lrwxrwxrwx 2 s s      62 Dec  3 21:26 core-image-minimal-microzed-zynq7.tar.gz -> core-image-minimal-microzed-zynq7-20191204041353.rootfs.tar.gz

    lrwxrwxrwx 2 s s      62 Dec  3 21:26 core-image-minimal-microzed-zynq7.testdata.json -> core-image-minimal-microzed-zynq7-20191204041353.testdata.json

    -rw-r--r-- 2 s s  184951 Dec  3 21:19 modules--4.19-xilinx-v2019.1+git0+9811303824-r0-microzed-zynq7-20191204041353.tgz

    lrwxrwxrwx 2 s s      81 Dec  3 21:19 modules-microzed-zynq7.tgz -> modules--4.19-xilinx-v2019.1+git0+9811303824-r0-microzed-zynq7-20191204041353.tgz

    lrwxrwxrwx 2 s s      36 Dec  3 21:25 u-boot.elf -> u-boot-microzed-zynq7-2019.01-r0.elf

    lrwxrwxrwx 2 s s      36 Dec  3 21:25 u-boot.img -> u-boot-microzed-zynq7-2019.01-r0.img

    -rw-r--r-- 2 s s 5298060 Dec  3 21:25 u-boot-microzed-zynq7-2019.01-r0.elf

    -rw-r--r-- 2 s s  548898 Dec  3 21:25 u-boot-microzed-zynq7-2019.01-r0.img

    lrwxrwxrwx 2 s s      36 Dec  3 21:25 u-boot-microzed-zynq7.elf -> u-boot-microzed-zynq7-2019.01-r0.elf

    lrwxrwxrwx 2 s s      36 Dec  3 21:25 u-boot-microzed-zynq7.img -> u-boot-microzed-zynq7-2019.01-r0.img

    -rw-r--r-- 2 s s     709 Dec  3 21:25 uEnv.txt

    lrwxrwxrwx 2 s s      80 Dec  3 21:19 uImage -> uImage--4.19-xilinx-v2019.1+git0+9811303824-r0-microzed-zynq7-20191204041353.bin

    -rw-r--r-- 2 s s 4162648 Dec  3 21:19 uImage--4.19-xilinx-v2019.1+git0+9811303824-r0-microzed-zynq7-20191204041353.bin

    lrwxrwxrwx 2 s s      80 Dec  3 21:19 uImage-microzed-zynq7.bin -> uImage--4.19-xilinx-v2019.1+git0+9811303824-r0-microzed-zynq7-20191204041353.bin

    lrwxrwxrwx 2 s s      80 Dec  3 21:19 zImage -> zImage--4.19-xilinx-v2019.1+git0+9811303824-r0-microzed-zynq7-20191204041353.bin

    -rw-r--r-- 2 s s 4162584 Dec  3 21:19 zImage--4.19-xilinx-v2019.1+git0+9811303824-r0-microzed-zynq7-20191204041353.bin

    lrwxrwxrwx 2 s s      80 Dec  3 21:19 zImage-microzed-zynq7.bin -> zImage--4.19-xilinx-v2019.1+git0+9811303824-r0-microzed-zynq7-20191204041353.bin

    -rw-r--r-- 2 s s    9402 Dec  3 21:19 zynq-microzed--4.19-xilinx-v2019.1+git0+9811303824-r0-microzed-zynq7-20191204041353.dtb

    lrwxrwxrwx 2 s s      87 Dec  3 21:19 zynq-microzed.dtb -> zynq-microzed--4.19-xilinx-v2019.1+git0+9811303824-r0-microzed-zynq7-20191204041353.dtb

    lrwxrwxrwx 2 s s      87 Dec  3 21:19 zynq-microzed-microzed-zynq7.dtb -> zynq-microzed--4.19-xilinx-v2019.1+git0+9811303824-r0-microzed-zynq7-20191204041353.dtb

 

 

In my SD card, I have put the following image -

 

 

    boot.bin

    system.dtb (zynq-microzed.dtb)

    u-boot.elf

    u-boot.img

    zImage  --> not sure what is it going to pickup

    uImage  --> so uImage again.

 

 

However, after booting/resetting the board I get the error as shown in the top of this post.

  • Hi,

     

    I hope you have found the solution by now, I had the same, so just for future reference, here is how I solved it:

     

    In default, when building the core-image-minimal, u-boot searches for a second partition on the SD card with your rootfs.

    So, create an SD card with two partitions, one FAT partition and one ext2 or 3 partition.

     

     

    I have used this information: https://xilinx-wiki.atlassian.net/wiki/spaces/A/pages/18842041/How+to+SD+boot+with+Yocto+images

    Then, use the tutorial for the ZCU102 (ofcourse, replace zcu-102-zynqmp with the microzed machine):

     

    I have populated the SD card with the following files:

    ## Copy to SD card

    Copy the following to a msdos / fat partition

    * BOOT.bin

    * u-boot.img

    * uEnv.txt

    * uImage

    * zynq-microzed.dtb

     

     

    Copy the cpio file to the second (linux/ext) partition according to the tutorial.

     

    Now I had the Microzed booting.

     

     

    Snapshot from the reference material:

    ---

    ZCU102

    If you built your image with "MACHINE=zcu102-zynqmp bitbake core-image-minimal", then you need the following files on your SD card:

    1. Boot partition
      • copy build/tmp/deploy/images/zcu102-zynqmp/BOOT.bin as BOOT.bin
      • copy build/tmp/deploy/images/zcu102-zynqmp/Image as Image
      • copy build/tmp/deploy/images/zcu102-zynqmp/Image-zynqmp-zcu102-revB.dtb as system.dtb

     

    Your boot partition should look like this after copying:

    image
    Files in boot partition for ZCU102
    1. Root Partition
      • The root file system should be in this partition. To expand rootfs on to your root partition, use this command:

     

    cd <path to your SD card root partition>

     

    sudo cpio -i < <path to your project>/build/tmp/deploy/images/zcu102-zynqmp/petalinux-image-minimal-zcu102-zynqmp.cpio

    Your root partition should look like this after copying:

     

    image
    Files in root partition for ZCU102

     

    ---

     

    Hope this helps!

     

    Kind regards