imx6 android4.4.2 用OTA升级bootloader的问题？

发表于 2017-2-15 19:38

我在android4.4.2 下制作了ota升级包，想升级bootloader，但总是失败。请问各位有做的吗?给指点下！！！！
这是我，的ota包里的updater-script 文件，我添加了升级bootloader相关语句。
package_extract_file("u-boot.bin","/tmp/u-boot.bin");
sysfs_file_write("class/mmc_host/mmc0/mmc0:0001/boot_config", "1");
simple_dd("/tmp/u-boot.bin", "/dev/block/mmcblk0", 1024, 1024);
sysfs_file_write("class/mmc_host/mmc0/mmc0:0001/boot_config", "8");

发表于 2017-2-21 10:01

问题已经解决，谢谢各位！
sysfs_file_write("block/mmcblk0boot0/force_ro", "0");
run_program("/system/bin/busybox","dd","if=/tmp/u-boot.bin","of=/dev/block/mmcblk0boot0","bs=1024","skip=1","seek=1");
sysfs_file_write("block/mmcblk0boot0/force_ro", "1");

添加了这个simple_dd方法，但是不起作用，还没查明原因。最后用这个代替run_program("/system/bin/busybox","dd","if=/tmp/u-boot.bin","of=/dev/block/mmcblk0boot0","bs=1024","skip=1","seek=1");

参考：
https://community.nxp.com/message/399559
https://github.com/onyx-intl/t80_platform_bootable/blob/master/recovery/updater/install.c#L1

[i.MX] imx6 android4.4.2 用OTA升级bootloader的问题？

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