# Need help for flashing custom Images on Jetson AGX ORIN **URL:** \ **Category:** Jetson AGX Orin\ **Tags:** flash\ **Created:** [July 13, 2023, 12:54pm UTC](https://forums.developer.nvidia.com/t/need-help-for-flashing-custom-images-on-jetson-agx-orin/259747 "2023-07-13T12:54:06Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![hetal.patel](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@hetal.patel](https://forums.developer.nvidia.com/u/hetal.patel)\ **Post date:** [July 13, 2023, 12:54pm UTC](https://forums.developer.nvidia.com/t/need-help-for-flashing-custom-images-on-jetson-agx-orin/259747/1 "2023-07-13T12:54:06Z")
Hello Team, I am new to flashing Nvidia Jetson AGX Orin board I need to understand regarding ./flash.sh script To start with i have tried manual flashing using below commad sudo ./flash.sh `jetson-agx-orin-devkit` mmcblk0p1 and I am able to flash the board Now I need to flash our custom image i.e., device-tree.dtb so how to flash it as there are so many dtb files in boot/dtb folder So how I need to flash above dtb using ./flash.sh command and also how to flash kernel.bin.gz and rootfs-initramfs.cpio.gz? ---
**Author:** ![DaveYYY](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/daveyyy/32/233244_2.png) [@DaveYYY](https://forums.developer.nvidia.com/u/DaveYYY)\ **Post date:** [July 14, 2023, 2:02am UTC](https://forums.developer.nvidia.com/t/need-help-for-flashing-custom-images-on-jetson-agx-orin/259747/3 "2023-07-14T02:02:34Z")
Hi, I’m not quite sure about what you want to do. Are you using a custom board, or you just want to disable some hardware functionality on our DevKit? Either case, put your device tree files in `Linux_for_Tegra/kernel/dtb`, and change the `DTB_FILE` and `TBCDTB_FILE` entries in `jetson-agx-orin-devkit.conf`. > [@hetal.patel](#): > > and also how to flash kernel.bin.gz and rootfs-initramfs.cpio.gz? You may just swap out kernel image and initrd in `Linux_for_Tegra/rootfs/boot`. ---
**Author:** ![hetal.patel](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@hetal.patel](https://forums.developer.nvidia.com/u/hetal.patel)\ **Post date:** [July 14, 2023, 5:57am UTC](https://forums.developer.nvidia.com/t/need-help-for-flashing-custom-images-on-jetson-agx-orin/259747/4 "2023-07-14T05:57:12Z")
Hello, I am not using custom board we just want to flash custom images which are relevant to our application So I want to flash on Jetson AGX Orin I tried using this command sudo ./flash.sh -d /home/faurecia/Documents/yocto-orin-build/device-tree.dtb -k kernel-dtb jetson-agx-orin-devkit mmcblk0p1 home/faurecia/Documents/yocto-orin-build/device-tree.dtb - Path to my custom dtb I am following correct command or we need to replace the custom file as you suggested. and Also can you explain how this command works? BR, Hetal ---
**Author:** ![DaveYYY](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/daveyyy/32/233244_2.png) [@DaveYYY](https://forums.developer.nvidia.com/u/DaveYYY)\ **Post date:** [July 14, 2023, 5:59am UTC](https://forums.developer.nvidia.com/t/need-help-for-flashing-custom-images-on-jetson-agx-orin/259747/5 "2023-07-14T05:59:36Z")
Hi, if you are using our DevKit, then what’s the purpose of using different device tree files? What modifications did you make to the device tree? Like, what exactly do you want to do? ---
**Author:** ![hetal.patel](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@hetal.patel](https://forums.developer.nvidia.com/u/hetal.patel)\ **Post date:** [July 14, 2023, 6:03am UTC](https://forums.developer.nvidia.com/t/need-help-for-flashing-custom-images-on-jetson-agx-orin/259747/6 "2023-07-14T06:03:40Z")
Hello, we have created binaries with YOCTO and we just want to flash those binaries so that we can use yocto and flash the binaries which are only needed for our application. ---
**Author:** ![DaveYYY](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/daveyyy/32/233244_2.png) [@DaveYYY](https://forums.developer.nvidia.com/u/DaveYYY)\ **Post date:** [July 14, 2023, 6:06am UTC](https://forums.developer.nvidia.com/t/need-help-for-flashing-custom-images-on-jetson-agx-orin/259747/7 "2023-07-14T06:06:48Z")
Hi, then you may just follow it here: [https://docs.nvidia.com/jetson/archives/r35.3.1/DeveloperGuide/text/SD/FlashingSupport.html](https://docs.nvidia.com/jetson/archives/r35.3.1/DeveloperGuide/text/SD/FlashingSupport.html) Swapping the default files or manually specifying them through flashing parameters should both work. Use `-d` for specifying path to kernel dtb, `-I` for initrd, and `-K` for bootloader. ---
**Author:** ![hetal.patel](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@hetal.patel](https://forums.developer.nvidia.com/u/hetal.patel)\ **Post date:** [July 14, 2023, 6:09am UTC](https://forums.developer.nvidia.com/t/need-help-for-flashing-custom-images-on-jetson-agx-orin/259747/8 "2023-07-14T06:09:49Z")
I tried with below command **sudo ./flash.sh -d /home/faurecia/Documents/yocto-orin-build/device-tree.dtb -k kernel-dtb jetson-agx-orin-devkit mmcblk0p1** But I am not able to flash I am getting below error : [11.2718] MB2 version 01.00.0000 [11.5054] Erasing partition [11.5067] tegradevflash\_v2 --erase kernel-dtb [11.5074] Bootloader version 01.00.0000 [11.7494] 000000004d4d090d: E\> NV3P\_SERVER: Failed to open partition kernel-dtb. [11.7613] [11.7613] [Failed] [11.7613] Error: Return value 13 Command tegradevflash\_v2 --erase kernel-dtb Failed to flash/read t186ref. So wanted to confirm the command which I used is it correct? ---
**Author:** ![DaveYYY](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/daveyyy/32/233244_2.png) [@DaveYYY](https://forums.developer.nvidia.com/u/DaveYYY)\ **Post date:** [July 14, 2023, 6:19am UTC](https://forums.developer.nvidia.com/t/need-help-for-flashing-custom-images-on-jetson-agx-orin/259747/10 "2023-07-14T06:19:43Z")
Hi, so looks like you already have a running system, but want to flash again to update the kernel dtb? Then actually you don’t need to do that, just copy the kernel dtb file into your device, and specify it in the `FDT` entry inside `/boot/extlinux/extlinux.conf`. Also, it should be `A_kernel-dtb` instead of `kernel-dtb`. ---
**Author:** ![hetal.patel](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@hetal.patel](https://forums.developer.nvidia.com/u/hetal.patel)\ **Post date:** [July 14, 2023, 6:22am UTC](https://forums.developer.nvidia.com/t/need-help-for-flashing-custom-images-on-jetson-agx-orin/259747/11 "2023-07-14T06:22:02Z")
Hi, Can you please explain how this command works as I am new to it and yes I am flashing custom binaries first time but I have flashed the board using command sudo ./flash.sh jetson-agx-orin-devkit mmcblk0p1 ---
**Author:** ![DaveYYY](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/daveyyy/32/233244_2.png) [@DaveYYY](https://forums.developer.nvidia.com/u/DaveYYY)\ **Post date:** [July 14, 2023, 6:24am UTC](https://forums.developer.nvidia.com/t/need-help-for-flashing-custom-images-on-jetson-agx-orin/259747/12 "2023-07-14T06:24:37Z")
Hi, you’ll find following contents inside `/boot/extlinux/extlinux.conf` ```auto TIMEOUT 30 DEFAULT primary MENU TITLE L4T boot options LABEL primary MENU LABEL primary kernel LINUX /boot/Image FDT /boot/dtb/kernel_tegra234-p3701-0000-p3737-0000.dtb INITRD /boot/initrd APPEND ${cbootargs} earlycon=tegra_comb_uart,mmio32,0x0c168000 ``` If you already have a running system, then there is no need to flash it again no matter you want to update kernel image/initrd, or kernel dtb, just copy them into your device, and specify the path to them in this config. ---
**Author:** ![hetal.patel](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@hetal.patel](https://forums.developer.nvidia.com/u/hetal.patel)\ **Post date:** [July 14, 2023, 6:34am UTC](https://forums.developer.nvidia.com/t/need-help-for-flashing-custom-images-on-jetson-agx-orin/259747/13 "2023-07-14T06:34:07Z")
Hi, So If I have flashed default binaries previously then I don’t need to flash it using command and to flash custom binaries then I need to give my custom binary file inside `/boot/extlinux/extlinux.conf` and then I need to use ./flash.sh script again to flash custom binary ? is my understanding correct ? BR Is My usnfd ---
**Author:** ![DaveYYY](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/daveyyy/32/233244_2.png) [@DaveYYY](https://forums.developer.nvidia.com/u/DaveYYY)\ **Post date:** [July 14, 2023, 6:42am UTC](https://forums.developer.nvidia.com/t/need-help-for-flashing-custom-images-on-jetson-agx-orin/259747/14 "2023-07-14T06:42:06Z")
Hi, there is no need to play with `flash.sh` anymore, because even if you flash your custom kernel images/kernel dtb, they are still by default read from rootfs as specified in the config file, instead of some other dedicated partitions, like A\_kernel-dtb. > [@hetal.patel](#): > > So If I have flashed default binaries previously then I don’t need to flash it using command YES > [@hetal.patel](#): > > and to flash custom binaries then I need to give my custom binary file inside `/boot/extlinux/extlinux.conf` > and then I need to use ./flash.sh script again to flash custom binary ? YES with the first sentence, but NO with the second sentence. Just use any method you can come up with to copy your custom binaries into your device. ---
**Author:** ![hetal.patel](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@hetal.patel](https://forums.developer.nvidia.com/u/hetal.patel)\ **Post date:** [July 14, 2023, 6:47am UTC](https://forums.developer.nvidia.com/t/need-help-for-flashing-custom-images-on-jetson-agx-orin/259747/15 "2023-07-14T06:47:06Z")
Hi, Just use any method you can come up with to copy your custom binaries into your device. → What other method we can use to flash custom binaries? Can you suggest one ---
**Author:** ![DaveYYY](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/daveyyy/32/233244_2.png) [@DaveYYY](https://forums.developer.nvidia.com/u/DaveYYY)\ **Post date:** [July 14, 2023, 6:50am UTC](https://forums.developer.nvidia.com/t/need-help-for-flashing-custom-images-on-jetson-agx-orin/259747/16 "2023-07-14T06:50:53Z")
Well, can you understand what I’m saying here? Even if you **flash** them, it’s not going to take effect, because kernel stuff are read from APP partition instead of other things like A\_kernel or A\_kernel-dtb. You don’t **flash** them, you just **copy** them into your device, with help of anything like scp or maybe USB drive, and specify them in `extlinux.conf`. ---
**Author:** ![hetal.patel](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@hetal.patel](https://forums.developer.nvidia.com/u/hetal.patel)\ **Post date:** [July 14, 2023, 7:06am UTC](https://forums.developer.nvidia.com/t/need-help-for-flashing-custom-images-on-jetson-agx-orin/259747/17 "2023-07-14T07:06:38Z")
> [@DaveYYY](#): > > Even if you **flash** them, it’s not going to take effect, because kernel stuff are read from APP partition instead of other things like A\_kernel or A\_kernel-dtb. > You don’t **flash** them, you just **copy** them into your device, with help of anything like scp or maybe USB drive, and specify them in `extlinux.conf`. Yes I understood that we need to copy custom Binaries but could you please explain that if I use USB drive to copy but at what location i need to placed those binaries Sorry but I am new to this and it is confusing for me as well. ---
**Author:** ![DaveYYY](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/daveyyy/32/233244_2.png) [@DaveYYY](https://forums.developer.nvidia.com/u/DaveYYY)\ **Post date:** [July 14, 2023, 7:09am UTC](https://forums.developer.nvidia.com/t/need-help-for-flashing-custom-images-on-jetson-agx-orin/259747/18 "2023-07-14T07:09:03Z")
Hi, you can put them wherever you want, and just to make sure corresponding changes are made in `extlinux.conf`, but typical solutions will still be under `/boot/`. ---
**Author:** ![hetal.patel](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@hetal.patel](https://forums.developer.nvidia.com/u/hetal.patel)\ **Post date:** [July 14, 2023, 10:40am UTC](https://forums.developer.nvidia.com/t/need-help-for-flashing-custom-images-on-jetson-agx-orin/259747/19 "2023-07-14T10:40:07Z")
Hi, and also I have rootfs-initramfs.cpio and kernel.bin so to replace those we need to follow the same step? ---
**Author:** ![DaveYYY](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/daveyyy/32/233244_2.png) [@DaveYYY](https://forums.developer.nvidia.com/u/DaveYYY)\ **Post date:** [July 14, 2023, 12:11pm UTC](https://forums.developer.nvidia.com/t/need-help-for-flashing-custom-images-on-jetson-agx-orin/259747/20 "2023-07-14T12:11:26Z")
> [@hetal.patel](#): > > and also I have rootfs-initramfs.cpio and kernel.bin so to replace those we need to follow the same step? Yes, and also remember to make changes in `extlinux.conf`. ---
**Author:** ![hetal.patel](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@hetal.patel](https://forums.developer.nvidia.com/u/hetal.patel)\ **Post date:** [July 17, 2023, 6:44am UTC](https://forums.developer.nvidia.com/t/need-help-for-flashing-custom-images-on-jetson-agx-orin/259747/21 "2023-07-17T06:44:06Z")
Hello, For copying custom binaries, can we use SD card to do that? I mean does SD card flashing supports in Jetson AGX Orin? ---
**Author:** ![DaveYYY](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/daveyyy/32/233244_2.png) [@DaveYYY](https://forums.developer.nvidia.com/u/DaveYYY)\ **Post date:** [July 17, 2023, 6:58am UTC](https://forums.developer.nvidia.com/t/need-help-for-flashing-custom-images-on-jetson-agx-orin/259747/22 "2023-07-17T06:58:50Z")
No, AGX Orin does not support booting from SD cards. [Next page](https://forums.developer.nvidia.com/t/need-help-for-flashing-custom-images-on-jetson-agx-orin/259747.md?page=2)