Implementation using PREFERRED_PROVIDER, like this: PREFERRED_PROVIDER_u-boot = "u-boot-my-fork" In the machine section of the board, you need to select the actual u-boot Mender has a dependency on u-boot, but the project's U-Boot likely hasĪnother name, therefore it is important to mark the project's fork as aĬomponent that provides u-boot.
Recipe for the U-Boot fork: require recipes-bsp/u-boot/u-boot-mender.inc The recipe needs to include u-boot-mender.inc, in order to incorporate the Typically this happens if one of the layers the project depends on has If the project is using a fork of U-Boot, some additional steps are If any variables appear, and any one of them has a value other than u-boot orĮmpty, then the build is using a U-Boot fork.
You can check if the board is using a u-bootįork with the following command (executed in the Yocto build directory): bitbake -e core-image-minimal | egrep '^PREFERRED_PROVIDER_(virtual/bootloader|u-boot)=' Using the u-boot recipe as the bootloader provider, then you can skip to the If the project is using a board supported by upstream U-Boot, and the build is See the documentation on features for more information. MENDER_FEATURES_DISABLE:append = " mender-grub mender-image-uefi" The mechanisms how this works are described in VisionFive SBC. For instance, in your nf: MENDER_FEATURES_ENABLE:append = " mender-uboot mender-image-sd" The VisionFive RISC-V SBC use two bootloader - a secondBoot and u-boot. If U-Boot integration is not already enabled, you can enable it by adding the snippet below to your build configuration. Platform supports U-Boot, and whether it is enabled by default. Please consult the bootloader support section to find out if your
#U boot yocto how to#
#U boot yocto Patch#
Combining Operating System and Application updates how to apply patch uboot: Yocto project Ask Question Asked 4 years, 4 months ago Modified 4 years, 4 months ago Viewed 2k times 0 i'm trying to apply a patch during the creation of my image with bitbake commande.Create an Artifact with system snapshot.Normally, I'd recommend either of the following approaches: bitbake u-boot -c devshell Use of devtool. Please, file a bug if you'd have uses for this. Loading Device Tree to 2f72e000, end 2f736059. It's currently, as of 2.3 Pyro, not possible to run bitbake u-boot -c menuconfig as no-one has implemented that functionality for the U-Boot recipe. I would like to know how & where to change the Yocto project build in order to produce the single. NOTE: generated images are listed in the attached picture. It produces headache while integrating mender into the build or while signing the u-boot. Of_flat_tree at 0x11000000 size 0x0000505a Here u-boot consists of two parts (SPL & u-boot.img) rather than the single file u-boot-dtb.imx. Nikolai Kondrashov, Red Hat South Hall 3A (Level 3) The Yocto Project. # Checking for 'FDT'/'FDT Image' at 11000000 Recent Advances in U-Boot - Simon Glass, Google Inc. * fdt: cmdline image address = 0x11000000 No configuration specified, trying default.įound default configuration: configuration # Loading kernel from FIT Image at 18000000. I have everything pretty much working, except that when the kernel is booted, U-Boot is ignoring the device tree in the FIT image and instead passing its own one - based on the value of fdtaddr (= 0x11000000): Hit any key to stop autoboot: 0ģ346230 bytes read in 100 ms (31.9 MiB/s)
#U boot yocto full#
The U-Boot bin has a basic device tree appended to it which it boots up using, but the FIT image has the full tree for the kernel. I'm working towards setting up U-Boot to boot only verified Linux kernel from a Kernel+fdt FIT image.
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