Jetpack 4.2.1 fails to boot on Nano - Failed to start Load Kernel Modules

Followed the instruction to flash the SD card with Ether.
Board keep rebooting with similar error messages.
Screenshots
https://github.com/Tony607/blog_statics/releases/download/v1.0/jetson_nano_4.2.1_boot_1.png
https://github.com/Tony607/blog_statics/releases/download/v1.0/jetson_nano_4.2.1_boot_2.png

Hi zce607,

Please try to use sdkmanager. Sometimes using Ethcer would hit such problem.

Hi Wayne,
I installed with sdkmanager. After “System configuration wizard” setup on Jetson Nano, it only shows the blank Ubuntu screen.
Here are the screenshots
https://github.com/Tony607/blog_statics/releases/download/v1.0/jetson_nano_sdk_manager.jpg
https://github.com/Tony607/blog_statics/releases/download/v1.0/jetson_nano_boot.jpg
https://github.com/Tony607/blog_statics/releases/download/v1.0/jetson_nano_after_setup_blank_screen.jpg

Hi zcw607,

Please change another SD card and try again.
We have one known issue about this, depending on the SD card speed, user may observe slow loading.
(You can check this from L4T Release note.)

Hi Carol,
The SD card model number I have is a SanDisk class10 64G。Is there a list of known working SD card model numbers?

Hi zcw607,

After “System configuration wizard” setup on Jetson Nano, it only shows the blank Ubuntu screen.
–> When you got this issue, please try reboot device and check issue still exist or not? Thanks!

The SanDisk class@10 64GB should be ok, could you change others sdcard (like class@10 32GB) to double confirm?

Reboot will enter “System configuration wizard” again, tried several times, same thing.
I will try with another class@10 32GB SD card.

Do you have an USB SSD or USB memory stick? If you do, you can have a try to install L4T r32.2 rootfs to external USB.
https://www.reddit.com/r/JetsonNano/comments/c79l36/nvidia_jetson_nano_how_to_install_rootfs_on/

Did you have any solution for this issue?
I have same problem for 「Apacer 32GB R85 C10」, when I boot nano and show this on console

Failed to start Load Kernel Modules

So, I change SD card to SanDisk 32GB.
It’s work to startup

Hi tedchung,
I wrote a post about this
TL;DR Buy a SanDisk class10 U1 or U3 card and use Rufus to flash the card, turn out the board is quite picky about SD card brand.
https://www.dlology.com/blog/how-to-run-keras-model-on-jetson-nano-in-nvidia-docker-container/