Hi, We use Jetson AGX Xavier. The L4T version is R35.6.0. We design our carrier board not devkit. When active boot slot is A. root@nvidia:/program/disk# nvbootctrl get-current-slot 0 root@nvidia:/program/disk# nvbootctrl -t bootloader dump-slots-info Current version: 35.6.0 Capsule update status:…

hello newbie.lei, we cannot repo this locally with AGX Xavier DevKit, here’re brief steps to test locally. Flash AGX Xavier with r35.6 and enable ROOTFS_AB=1 Create OTA payload with ROOTFS_AB=1 sudo -E ROOTFS_AB=1 ./tools/ota_tools/version_upgrade/l4t_generate_ota_package.sh jetson-agx-xavier-d…

it looks it’s not even start the OTA update progress. FYI, Image-based OTA update including updating rootfs and updating bootloader. Updating rootfs is before updating the bootloader; Updating the bootloader is executed in UEFI. once updating rootfs is finished, the device reboots, and then UEFI up…

Thank you for your reply. The rootfs upgrade appears to have succeeded. When I attempted to mount /dev/mmcblk0p2 (slotB’s rootfs), I found that all changes I made to the rootfs had been successfully applied. The current issue seems to be a failed BootLoader update under UEFI? When I use fsck chec…

We used fsck to repair the damaged partition /dev/mmcblk0p44, but the device still fails to automatically switch slots after OTA updates. Please help us.

hello newbie.lei, did the corrupt warning gone? may I know the latest UART logs that you perform OTA update?

Yes, the corrupt warning no longer appears. Below is the complete log from slotA OTA to slotB. Please help analyze it. [com COM26] (2025-09-04_151623) 绿联232.log (285.7 KB) [2025-09-04 15:16:23] We start machine [2025-09-04 15:17:59] We exec nv_ota_start.sh [2025-09-04 15:22:10] nv_ota_st…

The bootloader still doesn’t seem to have been upgraded. The UEFI enter twice. The first enter print [2025-09-04 15:22:35] [2025-09-04 15:22:35] Jetson UEFI firmware (version 202210.5-c101ba51-dirty built on 2025-05-20T11:02: [2025-09-04 15:22:37] 23+08:00) [2025-09-04 15:22:37] ESC to ent…

hello newbie.lei, it should be the 1st UEFI to update the bootloader, and then send request to restart the system. could you please check developer guide, Generating the Capsule Update Payload to test again.

Hi, We try Generating the Capsule Update Payload . The Bootloader can be successfully upgraded. Jetson UEFI firmware (version 202210.5-c101ba51-dirty built on 2025-05-20T11:02: 23+08:00) ESC to enter Setup. F11 to enter Boot Manager Menu. Enter to continue boot. Update Progress - 100% ******…

hello newbie.lei, rootfs-A/B might be disabled due to the version mismatch between bootloader and rootfs after capsule update. you may execute the following command to check before and after update. # xxd /sys/firmware/efi/efivars/RootfsRedundancyLevel-781e084c-a330-417c-b678-38e696380cb9

Yes, before update: [image] xxd /sys/firmware/efi/efivars/RootfsRedundancyLevel-781e084c-a330-417c-b678-38e696380cb9 00000000: 0600 0000 0100 0000 ........ Upgrade according to the Generating the Capsule Update Payload [image] After update: [image] xxd /sys/firmware/e…

Redundant A/B rootfs does not switch automatically after OTA

Robotics & Edge Computing Jetson Systems Jetson AGX Xavier

JerryChang September 16, 2025, 2:50am 23

hello newbie.lei,

it’s suggest to update l4t_generate_ota_package.sh and ota_board_specs.conf for customize board to create OTA payloads.
please see-also Topic 332980 for reference.

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Redundant A/B rootfs does not switch automatically after OTA

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