我们插入usb网卡（可插拔的usb网卡）后，httpv6，httpv4，pexv6，pexev4就会自动调到最高优先级启动系统，如何在烧录时候就禁止该4个选项，使其即使插入usb网口，也能默认从nvme硬盘启动？ [e8e699914d018bfbddfa16637373b06a]

由于usb网口是可随意插拔的，即使通过uefi菜单调整顺序后，拔掉usb网卡，然后再插入usb网卡，httpv6，httpv4，pxev6，pxev4，又会默认调到最高级别

overriding the default boot order during flashing . There are some other methods on that document. “ Overriding the Default Boot Order During Flashing Note This method only sets the default boot order on the first boot after flashing. If additional storage devices are added in subsequent boots, t…

I have tried the method mentioned above. With the USB network card plugged in all the time, the flashing process can set the default boot from NVMe. However, since the USB network card can be plugged in or out freely, after unplugging and re-plugging it, the USB network card boot option will be move…

This may work; unless it’s what you already did. /* BootOrderNoNet.dts — set DefaultBootPriority = "nvme,usb,ufs" and lock it */ /dts-v1/; /plugin/; / { fragment@0 { target-path = "/"; board_config { sw-modules = "uefi"; }; __overlay__ { firmware { …

it still did not work! xyz-eai@xyz-eai-ThinkStation-K:/mnt/other/hyj/nvidia/Linux_for_Tegra$ cat BootOrderNoNet.dts /dts-v1/; / { overlay-name = “L4T Configuration Settings”; fragment@0 { target-path = "/"; board_config { sw-modules = "uefi"; …

I have not tried this. But uefi shell documents show that you could delete the network boot entries. Boot Manager / UEFI Shell List boot entries and take a photo of it in case you need to add them back bcfg boot dump Remove them (replace ?? with the number): bcfg boot rm ?? Or at any time aft…

It did not work！We are a pluggable USB network card. After these environment variables are deleted, if you power off the device, then power it on, and unplug and re-plug the USB network card, the environment variables will be placed at the top again.

You may need to build your own uefi with GitHub - NVIDIA/edk2-nvidia: NVIDIA EDK2 platform support . It is not funny that prepending ADDITIONAL_DTB_OVERLAY=“BootOrderNvme.dtbo” failed. I think everything may have failed because L4TConfiguration.dtbo has the locked attribute set. for example gNVID…

Thank you for your reply! I have successfully compiled the UEFI using the reference document (via the non-Docker method), but how can I replace the files in Linux_for_tegra? The operation process basically refers to the following link.The configuration of t26x was used. [image] [image]

Compilation Reference Link: https://github.com/NVIDIA/edk2-nvidia/wiki/Build-without-docker

在烧写系统前，如何把httpv6，httpv4，pxev6，pxev4在uefi菜单中禁掉

Robotics & Edge Computing Jetson Systems Jetson Thor

1516775545 September 28, 2025, 11:22am 14

The issue has been resolved by modifying ./edk2/NetworkPkg/NetworkPkg.dec in the UEFI source code.

The effect is as follows:

How to disable netboot options in UEFI

[UEFI] 插入网卡后 UEFI 启动顺序变成网卡优先启动，无法从nvme启动

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在烧写系统前，如何把httpv6，httpv4，pxev6，pxev4在uefi菜单中禁掉

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