Jetson Thor平台UEFI修改L4TLauncher.c不生效（UEFI启动不调用修改后的L4TLauncher）

[wanglingce]

修改L4TLauncher.c编译后烧录，但在UEFI启动时调用的不是修改后的L4TLauncher。详情如下：

[wanglingce]

此图是当前UEFI启动时调用的L4TLauncher。

[wanglingce]

此图是手动进入uefi shell下，调用FS0:L4TLauncher.efi的信息。

打印信息中可以看到修改后的日志”L4TLauncher: Attempting 11111111111111111”

表明UEFI确实已烧录，但并未调用新烧录的L4TLauncher。

[wanglingce]

使用相同的方法测试“HspDoorbellEnableChannel”，发现修改后的打印信息生效：

[wanglingce]

编译指令：edk2-nvidia/Platform/NVIDIA/Tegra/build.sh --init-defconfig edk2-nvidia/Platform/NVIDIA/Tegra/DefConfigs/t26x_general.defconfig

替换文件：nvidia-uefi/images/uefi_t26x_general_DEBUG.bin > thor_l4t_bsp_sdk/bootloader/uefi_t26x_general.bin

烧录指令：sudo ./l4t_initrd_flash.sh --qspi-only jetson-agx-thor-ultron internal

（整包编译整包烧录都试过，依然会有以上问题）

[KevinFFF]

Hi wanglingce,

Are you using the devkit or developing the custom Thor carrier board?

The L4TLauncher is included in BOOTAA64.efi which is stored in esp partition rather than UEFI binary(uefi_t26x_general.bin).

You can run the following command to build it.

$ edk2_docker edk2-nvidia/Platform/NVIDIA/L4TLauncher/build.sh

And please refer to the following steps to update it.

$ ls -al /dev/disk/by-partlabel|grep esp
lrwxrwxrwx 1 root root  15 Sep  3 05:34 esp -> ../../nvme0n1p6
lrwxrwxrwx 1 root root  16 Sep  3 05:34 esp_alt -> ../../nvme0n1p12
$ sudo mount /dev/nvme0n1p6 /mnt
$ cd /mnt/EFI/BOOT/
$ replace BOOTAA64.efi under /mnt/EFI/BOOT/
$ sudo reboot

[wanglingce]

OK，it’s worked. Thank you!