# Tegra\_defconfig not found

**URL:** <https://forums.developer.nvidia.com/t/tegra-defconfig-not-found/190140>\
**Category:** Jetson Nano\
**Tags:** kernel\
**Created:** [September 26, 2021, 11:49pm UTC](https://forums.developer.nvidia.com/t/tegra-defconfig-not-found/190140 "2021-09-26T23:49:51Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![JacobH](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@JacobH](https://forums.developer.nvidia.com/u/JacobH)\
**Post date:** [September 26, 2021, 11:49pm UTC](https://forums.developer.nvidia.com/t/tegra-defconfig-not-found/190140/1 "2021-09-26T23:49:51Z")

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Hello,

I’m trying to rebuild the kernel as documented [here.](https://docs.nvidia.com/jetson/l4t/Tegra%20Linux%20Driver%20Package%20Development%20Guide/kernel_custom.html#wwpID0E0WD0HA) with the command `make ARCH=arm64 O=$TEGRA_KERNEL_OUT tegra_defconfig -j32`

it seems that `tegra_defconfig` has been renamed or moved.

```auto
ls arch/arm64/configs/
defconfig tegra13_defconfig tegra21_defconfig tegra_t210ref_gnu_linux_defconfig  
tegra13_android_defconfig tegra21_android_defconfig tegra_exuma_sim_android_defconfig  

```

I downloaded the L4T Kernel Sources from [here.](https://developer.nvidia.com/embedded/downloads)

What is the replacement for the tegra\_defconfig if I were to purchase a “NVIDIA Jetson Nano Developer Kit - Rev 2”?

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**Author:** ![JerryChang](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/jerrychang/32/14043_2.png) [@JerryChang](https://forums.developer.nvidia.com/u/JerryChang)\
**Post date:** [September 27, 2021, 2:54am UTC](https://forums.developer.nvidia.com/t/tegra-defconfig-not-found/190140/3 "2021-09-27T02:54:32Z")

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hello JacobH,

I can see `tegra_defconfig ` from r32.6.1 kernel sources.  
for example,  
_$L4T\_Sources/r32.6.1/Linux\_for\_Tegra/source/public/kernel/kernel-4.9/arch/arm64/configs/tegra\_defconfig_

could you please access [https://developer.nvidia.com/embedded/linux-tegra](https://developer.nvidia.com/embedded/linux-tegra) and re-download the [L4T Driver Package (BSP) Sources] for confirmation,  
thanks

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**Author:** ![linuxdev](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/linuxdev/32/10243_2.png) [@linuxdev](https://forums.developer.nvidia.com/u/linuxdev)\
**Post date:** [September 27, 2021, 6:53pm UTC](https://forums.developer.nvidia.com/t/tegra-defconfig-not-found/190140/4 "2021-09-27T18:53:02Z")

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I did correctly find `tegra_defconfig` in several releases. Which exact release did you download? If I have that, then I can try to mirror downloading that release and look for the `tegra_defconfig`.

I do have to say that your procedure looks correct, but since the sources I’m looking at have the file, then I wonder if there is something about your kernel source itself which is incomplete.

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<div class="post-metadata">

**Author:** ![JacobH](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@JacobH](https://forums.developer.nvidia.com/u/JacobH)\
**Post date:** [September 27, 2021, 9:48pm UTC](https://forums.developer.nvidia.com/t/tegra-defconfig-not-found/190140/5 "2021-09-27T21:48:56Z")

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I can confirm the same. Maybe I got an old build somehow.

Thanks!!!

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<div class="post-metadata">

**Author:** ![nadeemm](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/nadeemm/32/367020_2.png) [@nadeemm](https://forums.developer.nvidia.com/u/nadeemm)\
**Post date:** [October 15, 2021, 2:59am UTC](https://forums.developer.nvidia.com/t/tegra-defconfig-not-found/190140/7 "2021-10-15T02:59:27Z")

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