User app not packaged in SD card boot image

Hello,

I am following UG1144 and 1157 documentation on petalinux from Xilinx for ultrazed board. i have Vivado 2017.3 and petalinux 2017.3 installed in Unbuntu 16.04 64 bit machine.

the issue is

when i create the package and load the - BOOT.bin and image.ub file on the SD card and load it on the board, i am not able to see myapp inside /usr/bin folder .. but if i look into the rootfs.tar.gz file ?(which is a tarball or the filesystem, i can see the myapp in /usr/bin path ) ? not sure what is wrong here .. is board getting booted correctly ?

i have tried to explain my issue in detail here:

https://forums.xilinx.com/t5/Embedded-Linux/How-to-include-a-user-app-in-petalinux-SD-Card-package/td-p/824969

I hope someone from Avnet would be able to look into this.. need to resolve this issue

Top Replies

zedhed over 7 years ago +1

Hi vishal.bh30, I see from the Xilinx forum that you have verified that you are loading BOOT.BIN from the SD card so that is a good first step for troubleshooting. I suspect that you may be booting the…

0 zedhed over 7 years ago

Hi vishal.bh30,

I see from the Xilinx forum that you have verified that you are loading BOOT.BIN from the SD card so that is a good first step for troubleshooting.

I suspect that you may be booting the BOOT.BIN file from the SD card but somehow your U-Boot is configured to load image.ub from the eMMC device rather than the SD card. This happens to me occasionally during PetaLinux development and can be rather frustrating. Is this something that you can check to rule out this condition?

One way that you can check is to leave BOOT.BIN on the SD card but remove image.ub and if the system still boots all the way up to Linux that would tell you that an image.ub file is being loaded from somewhere else (likely the eMMC which still happens to me when I do not pay attention to the U-Boot settings).

Best Regards,

-Kevin
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0 vishal.bh30 over 7 years ago

Yes, this is the issue...i was able to boot without image.ub all the way through :(
Could you please guide me with the u-boot settings ? last time i tried it on my own , the build started to fail and i kept getting some warning mesasages about app file tainted.. ?
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0 vishal.bh30 over 7 years ago

Hello,
So i was able to find that this is a kown issue with Xilinx : https://www.xilinx.com/support/answers/69780.html
But when i applied this fix .. i am now getting a different error :
PLL: shutdown
Found that this was another issue : https://www.xilinx.com/support/answers/69764.html
and applied its given fix in Vivado and regenerated the bitstream and imported it the project but then got this error:
VFS: cannot open root device "mmcblk0p2" or unknown-block(179,2) : error -6
Kernel panic VFS : Unable to mount root fs on unknown-block(179,2)
following what was discussed here : https://forums.xilinx.com/t5/Embedded-Development-Tools/Beginners-problems-with-Ultrazed-eg/td-p/800802
I tried updating the system-user.dtsi file under : petalinux_prj/proj-spec/meta-user/recipes-bsp/device-tree/files/system-user.dtsi,
but now i keep getting error :
* Unable to read file system.dtb *
Also i was able to generate the project from avnet scripts on github... li tried to copy the same system-user.dtsi file in my folder and yocto started to give build errors....
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0 vishal.bh30 over 7 years ago in reply to vishal.bh30
having the following when i execute petalinux-config command :

Go to Subsystem AUTO Hardware Settings -> Advanced bootable images storage Settings -> boot image settings and set ‘image storage media’ option to ‘primary sd’
Go to Subsystem AUTO Hardware Settings -> Advanced bootable images storage Settings -> kernel image settings and set ‘image storage media’ option to ‘primary sd’
Go to Subsystem AUTO Hardware Settings -> Advanced bootable images storage Settings -> dtb image settings and set ‘image storage media’ option to ‘primary sd’
Go to Image Packaging Configurations and set ‘Root filesystem type’ option to ‘SD card’

source : https://medium.com/developments-and-implementations-on-zynq-7000-ap/install-ubuntu-16-04-lts-on-zynq-zc702-using-petalinux-2016-4-e1da902eaff7
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