what version of jetpack has the feature "Kernel Boot Sequence " ?only jetpack4.5? [image] how can we make a usb disk image with an easy way?

Xavier CBoot is unique in that it gets the DTB late in boot, either from flash or via extlinux.conf, then it probes HW (carveouts, etc.) and applies any new data to the DTB before handing it to the kernel. So there’s no ‘DTB merge’ like there is on T210/T186 w/U-Boot, and no chance for phandle conflicts. And DTBO support isn’t available in T194 CBoot via extlinux.conf, you need to use Jetson.IO to utilize overlays. Tom

Is this nvidia developer kit or your own custom carrier board? More precisely, it takes 10 mins to enter the desktop. Not 10 mins to boot. The boot is finished when you see "vkrobot-desktop login: " on the uart console. Please remove “quiet” inside your extlinux.conf to enable more log. Currently, the kernel log is not completed.

this is nvidia developer kit we delete the “quiet” , it become faster to enter the desktop.(4~5 min) usb disk boot log.txt (124.7 KB)

This is edid read failure. The display driver fails to read the monitor edid through the i2c. These re-tries make your desktop coming out slowly. [ 5.292784] tegradc tegradc.0: hdmi: edid read failed [ 5.292823] tegradc tegradc.0: hdmi: using fallback edid Is this a A02 jetson nano or B01 one? Will you see such issue if you boot from sd?

this is a02 sd card boot log.txt (21.6 KB)

Remove the quiet please… so that I can check the log…

Both sdcard and usb disk has the same display error. Please check if you can use other board to validate this issue.

we change our usb which is higher r/w speed, then it enter the desktop very quickly now but after we do apt-get update and apt-get upgrade , it no longer boot up . stu at tegra-i2c : no acknowledge from address 0xxxx

This is jetson nano board issue… not the usb stick issue. That was what I am talking about in previous comment…

we already change the board both are a02, is the image not suitable for a02 jetson-nano-jp45-sd-card-image.zip

What version of jetpack has the feature "Kernel Boot Sequence " ?only jetpack4.5? how can we make a usb disk image with an easy way?

Robotics & Edge Computing Jetson Systems Jetson Nano

TonnyHo-SCUT July 13, 2021, 3:34am 37

sd card boot log.txt (78.3 KB)
no quiet

sd card enter desktop ,it only take within 1 min

Can we flash the sd image to 64g usb disks ? we want our jetsons boot from the usb disks everywhere

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What version of jetpack has the feature "Kernel Boot Sequence " ?only jetpack4.5? how can we make a usb disk image with an easy way?

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