Hello, I am facing an issue where after many reboot in the 100’ 1000’, there is a swap to the other slot (so ROOTFS_AB=1), and I can see in nvbootctrl that the former slot is now unbootable. However, I would like to get the underlined reasons of this phenomenon in order to narrow it down. Is it po…

Hello, No, we are still investigating. We have yet to contact our NVIDIA representative as we were trying to add more traces into UEFI source in the meantime. We suspect that our problem can be related to partial issue when detecting NVME drive. We do apply the latest overlays. So from you reply, …

hello sebastien.schertenleib, may I know what’s your test steps? for instance, did you keep at slot-A to do reboot stress test (may I also know detail steps/commands), you’ll see slot-A crashed, and then fall back to slot-B after 1000 reboot cycles?

Hi, Yes, I am doing either cold or warm reboot, saying on let’s say slot A. After the system is up for ~1mn, a script ask for a reboot or an external device cut the power. After a while, which can be 100’ or 1000’ reboot cycles, suddenly, the system boot on slot B. If I carry on, it will again afte…

hello sebastien.schertenleib, [image] sebastien.schertenleib: a script ask for a reboot or an external device cut the power. this is cold reboot, it’s same as using hardware reset button to restart the system. since you’re having power cutoff within a minute, it might be a timing issue that…

Thanks for the head-up. I will address the proposal for those uefi assertions and I will have a look on those services. Howerver, warm reset should be fine or are you suggesting that some of those services might not always shut down gracefully?

hello sebastien.schertenleib, yap, we’ve experience some file system issue with power-on shortly power-off.

Hello, looking into nv-l4tbootloader-config.service and its associated script that at the end if call the following: If verify_boot_status is set, call nvbootctrl to verify the boot status. if [ “${verify_boot_status}” = “1” ]; then echo “Info. Verifying boot status.” nvbootctrl verify fi Thi…

hello sebastien.schertenleib, you should try to cutoff the power by checking sudo systemctl status l4t-rootfs-validation-config.service. it should wait till status=0/SUCCESS for system shutting down. for instance, Process: 415 ExecStart=/opt/nvidia/l4t-rootfs-validation-config/l4t-rootfs-va…

Hello, Thanks for the suggestion. I will prepare a new build with the fixes for the uefi assertion and making sure I wait until the status=0/SUCCESS. As this phenomenon is random, I will let the devkit run over the week-end.

Is this still an issue to support? Any result can be shared?

How to detect at boot time when boot slot become unbootable

Robotics & Edge Computing Jetson Systems Jetson AGX Orin

JerryChang October 30, 2025, 6:04am 6

BTW, please see-also Topic 315628 for the patches to fix UEFI assertion issues.

Topic		Replies	Views
Rootfs slot falls to unbootable status Jetson AGX Orin security	12	424	August 7, 2025
Repeated reboot at slot A in jetson orin with rootfs A/B=1, but boot to slot B unexpectedly Jetson AGX Orin security	16	395	November 4, 2025
Cannot switch AB slot back Jetson AGX Orin security	11	345	March 25, 2025
Unable to boot from OS chain B Jetson Orin Nano security	11	195	June 5, 2026
MB2 not booting sometimes Jetson AGX Orin boot	5	342	June 24, 2024
Mark bootloader bootable Jetson AGX Orin boot , security	6	1685	March 13, 2023
A/B Rootfs Redundancy: No fallback to other slot when one gets corrupted Jetson AGX Orin security	6	300	June 5, 2025
Is there a way to check the failed boot reason? Jetson AGX Orin boot	6	189	September 25, 2024
The image-based OTA upgrade shows success, but after reboot, slot 1 fails to boot Jetson AGX Orin ota	13	167	February 3, 2026
Some questions About Update and Redundancy Jetson AGX Orin boot , uefi	7	229	September 25, 2025

How to detect at boot time when boot slot become unbootable

Related topics