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For folks familiar with Zynq, Petalinux and u-boot.

I am using a microzed board, and trying to boot it using an SD card. The boot.bin file is generated using Petalinux 2018.3 SDK. The u-boot runs and then gives error Unknown command 'gzwrite' - try 'help'.

This error comes while executing the command install_ext4=gzwrite mmc 0 ${rootfsloadaddr} ${filesize} 0x100000 ${rootfsmmcstart}\0

I ran help command on the u-boot console and gzwrite doesn't show up in the list of commands. But the thing is that boot.bin was generated by petalinux and that includes the code above to load rootfs.

Do I need to tune up Petalinux project, is my board missing anything ?

Beenish Khan
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1 Answers1

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This type of problem occurred when, LC_ALL is set to some languages encoding format such as "en_US.UTF-8"

That's why before building u-boot, unset the language encoding format as below:- In the terminal where you are building u-boot run "unset LC_ALL".

Rahul Ravi
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