我写了一个自定义的Yocto Bitbake食谱，我粘贴在下面。我做了一些ROOTFS_POSTPROCESS_COMMAND，如下所示，作为包含此配方的完整映像构建的一部分。目前，映像位于映像do_rootfs步骤中，因为 rootfs 目录中缺少TIInit_11.8.32-115200_no_dsm-TI_P2.136.bts文件。
cleanup_ble_baud_rate_function() {
mv ${IMAGE_ROOTFS}/lib/firmware/ti-connectivity/TIInit_11.8.32-115200_no_dsm-TI_P2.136.bts ${IMAGE_ROOTFS}/lib/firmware/ti-connectivity/TIInit_11.8.32.bts
}
ROOTFS_POSTPROCESS_COMMAND_append_am57xx-phycore-rdk_arago = " cleanup_ble_baud_rate_function;"
这是食谱：
DESCRIPTION = "Bluetooth Daemon and DBus Service"
LICENSE = "BU-License"
LIC_FILES_CHKSUM = "file://${CUSTOM_LAYER_DIR}/licenses/${LICENSE};md5=d41d8cd98f00b204e9800998ecf8427e"
# We depend on python and dbus
RDEPENDS_${PN} += "libedit bluez5"
DEPENDS += "libedit bluez5"
PACKAGE_ARCH = "${MACHINE_ARCH}"
PR = "r1"
SRC_URI += "file://bluetooth.service
file://bluetooth.socket
file://ble-service.py
file://setup-bluetooth-radio.sh
file://TIInit_11.8.32-115200_no_dsm-TI_P2.136.bts locate
"
S = "${WORKDIR}"
PACKAGES = "${PN}"
FILES_${PN} += "/lib/"
FILES_${PN} += "/lib/firmware/"
FILES_${PN} += "/lib/firmware/ti-connectivity/"
FILES_${PN} += "/lib/firmware/ti-connectivity/TIInit_11.8.32-115200_no_dsm-TI_P2.136.bts"
do_install() {
install -d ${D}${bindir}
install -m 755 ble-service.py ${D}${bindir}
install -m 755 setup-bluetooth-radio.sh ${D}${bindir}
install -d ${D}/lib/firmware/ti-connectivity
install -m 755 TIInit_11.8.32-115200_no_dsm-TI_P2.136.bts ${D}/lib/firmware/ti-connectivity/
install -d ${D}${sysconfdir}/systemd/system
install -d ${D}${sysconfdir}/systemd/system/multi-user.target.wants
install -m 0644 ${S}/bluetooth.service ${D}${sysconfdir}/systemd/system
ln -s ../bluetooth.service ${D}${sysconfdir}/systemd/system/multi-user.target.wants/bluetooth.service
# Actually use socket based activation for this service
install -d ${D}${sysconfdir}/systemd/system/sysinit.target.wants
ln -s ../bluetooth.service ${D}${sysconfdir}/systemd/system/sysinit.target.wants/bluetooth.service
}
映像构建失败后，当我执行Linux updateb并定位命令时，会显示以下结果：
name@machine:/am57xx/build(master)>sudo updatedb
name@machine:~/am57xx/build(master)>locate TIInit_11.8.32-115200_no_dsm-TI_P2.136.bts /home/name/am57xx/build/tmp-external-linaro-toolchain/sysroots/am57xx-phycore-rdk/lib/firmware/ti-connectivity/TIInit_11.8.32-115200_no_dsm-TI_P2.136.bts
/home/name/am57xx/build/tmp-external-linaro-toolchain/work/am57xx_phycore_rdk-linux-gnueabi/ble-service/1.0-r1/TIInit_11.8.32-115200_no_dsm-TI_P2.136.bts
/home/name/am57xx/build/tmp-external-linaro-toolchain/work/am57xx_phycore_rdk-linux-gnueabi/ble-service/1.0-r1/image/lib/firmware/ti-connectivity/TIInit_11.8.32-115200_no_dsm-TI_P2.136.bts
/home/name/am57xx/build/tmp-external-linaro-toolchain/work/am57xx_phycore_rdk-linux-gnueabi/ble-service/1.0-r1/package/lib/firmware/ti-connectivity/TIInit_11.8.32-115200_no_dsm-TI_P2.136.bts
/home/name/am57xx/build/tmp-external-linaro-toolchain/work/am57xx_phycore_rdk-linux-gnueabi/ble-service/1.0-r1/packages-split/ble-service/lib/firmware/ti-connectivity/TIInit_11.8.32-115200_no_dsm-TI_P2.136.bts
/home/name/am57xx/build/tmp-external-linaro-toolchain/work/am57xx_phycore_rdk-linux-gnueabi/ble-service/1.0-r1/sysroot-destdir/lib/firmware/ti-connectivity/TIInit_11.8.32-115200_no_dsm-TI_P2.136.bts
/home/name/am57xx/layers/meta-custom/recipes-networking/ble-service/files/TIInit_11.8.32-115200_no_dsm-TI_P2.136.bts
我同意Oleksandr的观点。不要使用后处理命令，它可能没有按照您的想法进行。相反，只要确保你使用${S}，你的FILES_${PN}可能会简单得多。
install -m 755 ${S}/TIInit_11.8.32-115200_no_dsm-TI_P2.136.bts ${D}/lib/firmware/ti-connectivity/
FILES_${PN} += "${libdir}/firmware/ti-connectivity/*"
在 tmp/work/target/recipename 中调试您的配方安装将帮助您弄清楚事情的发展方向。