Jetson AGX Xavier has a Kernel panic in booting. And I can't flash xavier's OS

I’m using Jetson AGX Xavier Developer Kit (OS:Ubuntu18.04) and I seem to have deleted libc6 by mistake.
I don’t know if this is the cause or not, but the boot screen shows kernel panic, reboot in 5 seconds, and I can no longer log in.

I also tried flushing the OS with Jetpack 4.1.1 installer, but it doesn’t proceed from the following screen.

Enter
###############################################################################
# L4T BSP Information:
# R31 (release), REVISION: 1.0, GCID: 13194883, BOARD: t186ref, EABI: aarch64, 
# DATE: Wed Oct 31 22:26:16 UTC 2018
###############################################################################

Is there a way to flush the OS and find out why it is not proceeding?

Hi shmatsui,

Not sure what and how it happened, please download SDK Manager and
follow these instructions to use JetPack 4.4.1 to flash your device.

Hi kaycc, thanks for the reply.

I have tried flashing it using JetPack 4.4.1 with the SDK manager, but the
In STEP03 SETUP PROCESS, it seems to become INSTALLATION FAILED.
I attached the log generated by EXPORT LOGS.
Sorry for the huge amount of log, but is there anything you can find out from the log?
SDKM_logs_JetPack_4.4.1_Linux_for_Jetson_AGX_Xavier_2020-11-13_10-42-28.zip (540.4 KB)

Hi shmatsui,

The log shows that BSP installation failed. This further blocks flashing.
The reason BSP failed is that there are errors when running “sudo apt-get update” command:
10:34:37.315 - info: NV_L4T_DRIVERS_T194_COMP@JETSON_AGX_XAVIER: E: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/bionic-updates/main/binary-arm64/Packages 404 Not Found [IP: 91.189.91.38 80]
10:34:37.315 - info: NV_L4T_DRIVERS_T194_COMP@JETSON_AGX_XAVIER: E: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/bionic-backports/main/binary-arm64/Packages 404 Not Found [IP: 91.189.91.38 80]
10:34:37.315 - info: NV_L4T_DRIVERS_T194_COMP@JETSON_AGX_XAVIER: E: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/bionic-security/main/binary-arm64/Packages 404 Not Found [IP: 91.189.91.38 80]
10:34:37.315 - info: NV_L4T_DRIVERS_T194_COMP@JETSON_AGX_XAVIER: E: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/bionic/main/binary-arm64/Packages 404 Not Found [IP: 91.189.91.38 80]
10:34:37.315 - info: NV_L4T_DRIVERS_T194_COMP@JETSON_AGX_XAVIER: E: Some index files failed to download. They have been ignored, or old ones used instead.

To fix this error,

  1. Please check if ARCH arm64 exists in the system arch list. Run sudo dpkg --print-foreign-architectures command
  2. If Yes. Run sudo apt-get purge "*:arm64" command, all arm64 package will be removed.
  3. Then run sudo dpkg --remove-architecture arm64 to remove ARCH arm64 from system arch list.
  4. Then sudo apt-get update should end with success.

Once sudo apt-get update command is success, please reinstall JetPack.

Hi EdwardZhou,

I checked and found arm64 in the system arch list, so I followed the instructions you gave me.
But I still got an error with apt-get update.
It said Certificate verification failed, so I installed ca-certificates and the installation of jetpack proceeded successfully.

sudo apt install ca-certificates

Thank you!