failed to mounting ext4 file system using ext3 subsystem about tegra-demo-distro HOT 9 CLOSED

Those messages can be safely ignored. The kernel includes support for all three current versions of the ext filesystem (2, 3, and 4), and will try the earlier versions before ext4.

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thanks @madisongh for the feedback.

I am getting mounting error. please find attached error details.
Can you please help me to resolve this issue?

Regards,
Gaurav

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It looks like the APP partition on the SDcard didn't get written properly. Can you check it on your host machine? Use sgdisk /dev/sdX --print and sgdisk /dev/sdX --verify to check on the overall format and partition table, then use fsck /dev/sdX1 to verify the APP partition's filesystem looks OK (using the actual device name for your SDcard reader in place of /dev/sdX).

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thanks @madisongh

I have executed suggested commands, it seems like sgdisk /dev/sdX --print and sgdisk /dev/sdX --verify command works as expected but fsck /dev/sdX1 command has problem.

I did multiple attempts of writing of Mass-Storage using "sudo ./dosdcard.sh /dev/sdb" but all the time it is giving same problem for fsck /dev/sdX1

I am using Ubuntu 20.04 for build the OS and prepare the USB.

Please suggest how I can solve the problem

Regards,
Gaurav

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Try an fsck on the EXT4 filesystem image (should be fsck demo-image-weston.ext4). If that fails, then something probably went wrong with unpacking the tegraflash package.... that can happen if you use a GUI-based tool to unpack the tarball, rather than using the tar command from a terminal window.

Once the filesystem image checks out OK, then try re-running the dosdcard.sh script, and before you remove the SDcard from the reader, do the fsck /dev/sdb1. If that fails, then something went wrong with writing to the card, or possibly the card itself is bad. If the fsck passes, use eject /dev/sdb to make sure that the card isn't in use, remove it from your host, and try it again in your Jetson.

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thanks @madisongh for the feedback.

I have extract using default GUI tools and tar command. I show few MBs difference in demo-image-weston-jetson-xavier-nx-devkit.dataimg and GBs of size difference into demo-image-weston.ext3

It seems like there is some issue while using GUI tools for extract.

I will re-perform activity by extracting using tar command and let you know the status.

thank you so much.

Regards,
Gaurav

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thank you @madisongh.

Problem is resolved. I am able to run image on EVK Kit.

to prepare SD card it took around 9 hours. Can you please suggest if we can prepare SD card quickly ?

Will close the ticket after your feedback

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There are tips on the wiki page.

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thanks for the information. @madisongh

after installing bmap-tools it is much much faster (flashing SD card in 10 min)

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