环境：AGX Orin series 64G内存 jetpack 5.1.3 刷机用pc: ubuntu 20.04 问题描述：您好，我尝试在不烧录efuse的情况下，使用PKC KEY和SBK KEY签名后刷机，发现每次执行sudo bash ./flashcmd.txt 刷机就提示usb断开，此时用串口连接的som还显示在#bash命令行，但是pc端lsub找不到nvidia设备操作步骤：准备pck key & sbk key： keys.tar.gz (2.1 KB) 制作签名镜像： sudo BOARDID=3701 FAB=501 BOARDSKU=0005 B…

hello yyl7823271, according to the error logs.. [image] yyl7823271: [ 11.393369] ERROR: fail to unlock the encrypted dev /dev/mmcblk0p2. it usually due to your EKS image (eks_t234.img) does not contain the same user key. please double check you’ve follow the sample script, for example, $p…

hello yyl7823271, [image] yyl7823271: I just want test to flash system with pkc/sbk keys first; unfortunately, it’s not accepted. please refer to developer guide, Burn Fuses with the Fuse Configuration file . you may test with odmfuse.sh by adding the --test option to verify fuse burning…

Thank you for reply! After burning fuse, I can flash with the command： sudo ./flash.sh -u keys/rsa_priv_3k.pem -v keys/sbk.key -r jetson-agx-orin-devkit mmcblk0p1 and system start normally. But when I tried flashing the device with UEFI keys like this: sudo ./flash.sh -u keys/rsa_priv_3k.pem -v …

hello yyl7823271, it’s related to UEFI secureboot, please double check you’ve referred to UEFI Secure Boot . BTW, you may see-also Topic 310592 . here’re some brief steps for your reference, Follow document steps to generate PK, KEK, db keys Create UEFI keys config file Generate UefiDefaultSecur…

[image] JerryChang: sym2_t234 Okay, thank you! I didn’t find much information about the sym2_t234.key and auth_t234.key. I am using AGX Orin 64G hardware & JP5.1.3, can I just use the command to generate this two keys: openssl rand -rand /dev/urandom -hex 16 > sym2_t234.key openssl rand -ra…

hello yyl7823271, [image] yyl7823271: AGX Orin 64G hardware & JP5.1.3, you must use the same release version atf_and_optee package to create EKS image. FYI, sym2_t234.key is disk encryption key, you should running with flash script with ROOTFS_ENC=1 and -i option to specify the key file. a…

Thank you for prompt reply! When I don’t enable secure flashing, the functionality of my opetee after compiling and flashing is normal。 can i use UEFI secureboot without disk encryption?if it’s allowed. should i modify the sym2_t234.key to "000000..."? There are several keys： auth_t234.key、sym_t234…

hello yyl7823271, yes, it’s supported to use UEFI secureboot without disk encryption. auth_t234.key is UEFI variable authentication key. sym2_t234.key it’s the key for disk encryption. it’s --uefi-keys to enable UEFI secureboot, you’ll need to assign UEFI keys, uefi_keys.conf. it’s --uefi-enc …

thank you for detailed explanation. I still get stuck in the UEFI shell here. I have currently flash fuse’s oem_k1, PublicKeyHash, SecureBootKey, BootSecurInfo（0x209）, and SecurMode(0x1). And I have regenerated eks_t234.img. when I only flashed with script ,system can start normally. sudo ./flash.…

here the uart log(agx orin 64G, JP5.1.3) : boot_failed_in_uefi_shell.txt (33.0 KB) OK, I will double check the steps of EKS… As stated in the above post， To avoid mistakes, I use optee default of example.sh and just replaced oem_k1.key to my oem_k1.key content，other keys are default of example.s…

AGX Orin Series 无法烧录签名镜像

Robotics & Edge Computing Jetson Systems Jetson AGX Orin

JerryChang February 12, 2026, 6:12am 21

hello yyl7823271,

please setup serial console to gather the bootloader logs for reference,
it usually EKS image issue if that’s boot hang by running with UEFI secureboot,
see-also Topic 284400 to double check the steps of EKS image creation.

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AGX Orin Series 无法烧录签名镜像

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