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Make Kernel A/B updates (as part of rootfs) default behavior for meta-rauc-raspberrypi #102

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Jun 25, 2024
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Make Kernel A/B updates (as part of rootfs) default behavior for meta-rauc-raspberrypi #102

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meta-rauc-raspberrypi: Make sure kernel image and modules are included
Jun 21, 2024
e99e50a
rpi-u-boot-scr: Boot the kernel image from the selected rootfs partition
Jun 21, 2024
08f635b
meta-rauc-raspberrypi: README.rst: Clean up notes about kernel updates
Jun 21, 2024
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8 changes: 0 additions & 8 deletions meta-rauc-raspberrypi/README.rst
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Expand Up @@ -75,14 +75,6 @@ It is also recommended, but not strictly necessary, to enable 'systemd'::

INIT_MANAGER = "systemd"

Optionally, to update the Linux kernel using A/B partitions and a RAUC bundle, put the kernel in the rootfs::

IMAGE_INSTALL:append = " kernel-image"

Optionally, to boot Linux kernel from the rootfs modify ``boot.cmd.in`` and replace ``fatload mmc 0:1 ${kernel_addr_r} @@KERNEL_IMAGETYPE@@`` with::

load ${BOOT_DEV} ${kernel_addr_r} boot/@@KERNEL_IMAGETYPE@@

Build the minimal system image::

$ bitbake core-image-minimal
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2 changes: 1 addition & 1 deletion meta-rauc-raspberrypi/recipes-bsp/rpi-u-boot-scr/files/boot.cmd.in
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Expand Up @@ -41,6 +41,6 @@ else
reset
fi

fatload mmc 0:1 ${kernel_addr_r} @@KERNEL_IMAGETYPE@@
load ${BOOT_DEV} ${kernel_addr_r} boot/@@KERNEL_IMAGETYPE@@
if test ! -e mmc 0:1 uboot.env; then saveenv; fi;
@@KERNEL_BOOTCMD@@ ${kernel_addr_r} - ${fdt_addr}
1 change: 1 addition & 0 deletions meta-rauc-raspberrypi/recipes-core/images/core-image-minimal.bbappend
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@@ -0,0 +1 @@
IMAGE_INSTALL:append = " kernel-image kernel-modules"
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