136f317c68
Because uboot requires a set of unique patches for each board, the upstream package developers are phasing out supporting uboot wherever possible. Instead, they recommend using Grub2 as a secondary bootloader and using the mender-grubenv package. Because the mender-grubenv file provides it's own fw_printenv script, it is not possible to know if U-Boot's fw_printenv or mender-grubenv's fw_printenv should be used. As such, remove selecting uboot tools when uboot is selected, and instead add a more comprehensive note in the help section about what Mender requires for uboot and grub2-based systems, with a link to the meta-mender github project for the base uboot patches, and a link to the official documentation on manual uboot integration. Signed-off-by: Adam Duskett <aduskett@gmail.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
42 lines
1.6 KiB
Plaintext
42 lines
1.6 KiB
Plaintext
config BR2_PACKAGE_MENDER
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bool "mender"
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depends on BR2_PACKAGE_HOST_GO_TARGET_ARCH_SUPPORTS
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depends on BR2_PACKAGE_HOST_GO_TARGET_CGO_LINKING_SUPPORTS
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depends on BR2_TOOLCHAIN_HAS_THREADS
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select BR2_PACKAGE_OPENSSL
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select BR2_PACKAGE_XZ
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help
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Mender is an open source over-the-air (OTA) software updater
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for embedded Linux devices. Mender comprises a client
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running at the embedded device, as well as a server that
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manages deployments across many devices.
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Notes:
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For systems using uboot as the bootloader:
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- uboot must have the mender uboot patches applied.
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- uboot-tools must be selected.
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- fw_printenv must be functional on the device.
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The Mender Uboot patches are at:
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https://github.com/mendersoftware/meta-mender/
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For more information on Manual U-Boot integration, see:
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https://docs.mender.io/2.6/system-updates-yocto-project/board-integration/bootloader-support/u-boot/manual-u-boot-integration
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For systems using Grub2 as the bootloader:
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- Mender depends on the mender-grubenv package.
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- The mender-grubenv package provides a fw_printenv script,
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which is not compatible with the uboot-tools fw_printenv
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script.
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The mender project recommends using uboot to load Grub2 as a
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secondary bootloader whenever possible. Using Grub2 as a
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secondary bootloader prevents users from porting the patches
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for uboot to each new device.
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https://github.com/mendersoftware/mender
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comment "mender needs a toolchain w/ threads"
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depends on BR2_PACKAGE_HOST_GO_TARGET_ARCH_SUPPORTS
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depends on BR2_PACKAGE_HOST_GO_TARGET_CGO_LINKING_SUPPORTS
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depends on !BR2_TOOLCHAIN_HAS_THREADS
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