Oct 4, 2017 · Note that the author/maintainer of U-Boot considers the (widespread) use of using a zImage inside a uImage questionable: Actually it's pretty stupid to use a zImage inside an uImage. It is much better to use normal (uncompressed) kernel image, compress it using just gzip, and use this as poayload for mkimage.

mkimage -l uImage Will dump the information in the header. tail -c+65 < uImage > out Will get the content. tail -c+65 < uImage | gunzip > out will get it uncompressed if it was gzip-compressed. If that was an initramfs, you can do cpio -t < out or pax < out to list the content. If it's a ramdisk image, you can try and mount it with:

Jul 26, 2017 · The zImage file is a stand-alone executable. The legacy "uImage" format is not formally documented in U-Boot but could be understood by reading the code. In most cases, rather than using a "uImage" you would want to use a FIT image today, which has a number of docs in the doc/uImage.FIT directory in the U-Boot sources.

Sep 18, 2013 · uboot.bin is the bootloader, i.e. uboot, uImage.bin is the kernel image. Usually, in embedded systems the NAND flash is partitioned in four parts: A partition for the bootloader (here goes uboot.bin) A small partition where uboot saves its environment variables; A partition for the kernel (here goes uImage.bin) A partition for the rootfs

Aug 24, 2015 · make uImage mkimage -A <arch> -O linux -T kernel -C none -a <load-address> -e <entry-point> -n "Linux kernel" -d arch/arm/boot/zImage uImage or in the kernel source

Jun 18, 2016 · The uImage file is simply a wrapper on a file. You convert the uImage file into its original file(s) by simply removing the wrapper (and decompress the file only if the wrapper indicates it). The kernel image and dtb in that uImage should be handled in the same manner as the initramfs. So "extracting" one but keeping another "as is" makes no sense.

Sep 4, 2015 · A partition for the kernel (here goes uImage.bin) A partition for the rootfs; Now i have few questions from my side :-- 1> 32 bit ARM MCU have many external memory interfaces like DRAM & NAND or NOR flash connected to it. How wil our 32 bit ARM MCU will know from which address place on NAND to fetch the Uboot from ?

Dec 13, 2019 · vmlinux is the uncompressed kernel binary whereas uImage is the kernel with U-Boot header (a la FIT image). If you are booting from U-Boot you should only require the uImage file. If you are booting from U-Boot you should only require the uImage file.

Apr 1, 2014 · mkimage -A arm -O linux -T kernel -C none -a 0x80008000 -e 0x80008000 -n "Linux kernel" -d arch/arm/boot/zImage uImage The mkimage utility comes with the u-boot-tools package in Ubuntu (if that's what you're using), and it can be installed with the command sudo apt-get install u-boot-tools

I had a zImage file and I used mkimage tool to convert it into a uImage format. When I am booting this file, it is not been found by u-boot: Wrong Image Format for bootm command ERROR: can't get kernel image! U-Boot-PetaLinux> So I thought of verifying that the uImage generated after conversion with mkimage is a valid image or not.