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| -rw-r--r-- | docs/extra-build-config.md | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/docs/extra-build-config.md b/docs/extra-build-config.md index a8c662a..b881322 100644 --- a/docs/extra-build-config.md +++ b/docs/extra-build-config.md @@ -172,6 +172,31 @@ To build an initramfs image: - `INITRAMFS_MAXSIZE = "315400"` - `IMAGE_FSTYPES_pn-${INITRAMFS_IMAGE} = "${INITRAMFS_FSTYPES}"` +## Including additional files in the SD card image boot partition + +The SD card image class supports adding extra files into the boot +partition, where the files are copied from either the image root +partition or from the build image deploy directory. + +To copy files that are present in the root partition into boot, +FATPAYLOAD is a simple space-separated list of files to be copied: + + FATPAYLOAD = "/boot/example1 /boot/example2" + +To copy files from the image deploy directory, the files should be +listed in the DEPLOYPAYLOAD as a space-separated list of entries. +Each entry lists a file to be copied, and an optional destination +filename can be specified by supplying it after a colon separator. + + DEPLOYPAYLOAD = "example1-${MACHINE}:example1 example2" + +Files that are to be included from the deploy directory will be produced +by tasks that image building task must depend upon, to ensure that the +files are available when they are needed, so these component deploy +tasks must be added to: RPI_SDIMG_EXTRA_DEPENDS. + + RPI_SDIMG_EXTRA_DEPENDS_append = " example:do_deploy" + ## Enable SPI bus When using device tree kernels, set this variable to enable the SPI bus: |