我正在为yocto-project创建BBB.B的图像。我克隆了项目git clone -b pyro git://git.yoctoproject.org/poky
,然后启动了构建过程。用bitbake core-image-sato
烤制它,并获得带有文件的构建目录。Beaglebone Black无法启动yocto-image
我在SD卡上创建了2个分区,其中64M用于root,其余用于启动(15 + GB)。 复制MLO and u-boot-beaglebone.img
到root partition
。
未启动根分区上的core-image-sato-beaglebone.tar.bz2
,然后在启动分区下复制zImage-beaglebone.bin, zImage-am335x-bone.dtb, zImage-am335x-boneblack.dtb
。
当我试图启动BBB发现u-boot预计uEnv.txt并卡住那里。 yocto build目录没有任何uEnv.txt,那么如何编写自己的uEnv.txt?这是u-boot提示符。 Hit any key to stop autoboot: 0 gpio: pin 53 (gpio 53) value is 1 mmc0 is current device micro SD card found mmc0 is current device gpio: pin 54 (gpio 54) value is 1 SD/MMC found on device 0 reading uEnv.txt ** Unable to read file uEnv.txt ** gpio: pin 55 (gpio 55) value is 1 ** File not found /boot/uImage ** U-Boot#
我加uEnv.txt在根分区与文本 mmcdev=0 mmcpart=1 bootpart=0:1
这一次的u-boot尝试从/boot
目录读取一个uImage
,但我有zImage
什么冲突呢?我应该如何解决它?
SD/MMC found on device 0 reading uEnv.txt 32 bytes read in 4 ms (7.8 KiB/s) Loaded environment from uEnv.txt Importing environment from mmc ... gpio: pin 55 (gpio 55) value is 1 reading /boot/uImage ** Unable to read file /boot/uImage ** U-Boot#
https://unix.stackexchange.com/questions/122526/how-to-convert-a-zimage -into-uimage-for-boot-with-u-boot – h0ch5tr4355
@ h0ch5tr4355所以你的意思是说它必须在uImage中转换zImage并且u-Boot不能加载zImages? 那么'zImage-am335x-boneblack.dtb,zImage-am335x-bone.dtb,zImage-beaglebone.bin'还需要转换它们吗? – user7345878
我遵循上面链接中提到的步骤。这次U-BOOT进去一个无限循环,同时读取的uImage'数据中止 PC:[<9f376478>] LR:<9f35a494>] SP:9f238060 IP:9f238090 FP:00000da1 R10:00000080 R9:00000200 R8:9f238f40 R7 :00000000 R6:00564a00 R5:00000020 R4:48060100 R3:00000000 R2:56190527个R1:R0 00000da2:00000001 标志:在模式SVC_32 NZCV的IRQ关闭使得FIQ复位CPU ... 复位...... ' – user7345878