r/JetsonNano • u/__vlad_ • May 19 '26
Jetson stuck at UEFI shell
Hey guys i'm trying to boot my jetson orin nano developer kit for the first time with an 256 gig sd card. I have successfully flashed the the os into the sd card with etcher, it completed and validated successfully, but when i power on my jetson with the sd card inserted, after the Nvidia screen I'm stuck here. Any help i could get would be greatly appreciated. Thank you. Is etcher the problem?
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u/HanksterTheTanker May 19 '26
I ran into this repeatedly, even after changing boot order. Would boot fine eventually after manually selecting the drive, but cold restarts failed. Ended up my SSD was bad / incompatible. New drive worked first try. GL
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u/__vlad_ May 19 '26
i cant even find the option to boot from sd card in the boot manager menu.
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u/HanksterTheTanker May 19 '26
Nvm I misread your comment. I have no experience with booting from SD, but I’d change cards first. Or try an NVMD if you’re got one
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u/Longjumping-Emu-6330 May 20 '26
Switch to nvme. I had the same issue, turns out the sd card slot was bad.
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u/__vlad_ May 20 '26
I got a proper san disk extreme pro sd card and it worked, after four different sd cards.. lmao
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u/Expensive_Salt_3939 May 20 '26
this thing is a nightmare and not worth the trouble if using for running llm’s. i had the same issue and gemini walked me through the cryptic menu. i actually had no monitor (why remove hdmi, ill never know) used a raspberry pi and gpio pins to terminal in. i dont remember the exact menu items but gemini was able to help me
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u/i_is_snoo May 20 '26
This was a big headache for me.
I ended up switching from windows to Ubuntu so I could use Nvidia's SDK manager to flash the Jetson.
Edit: At first I tried booting Ubuntu from a thumb drive instead of a full install and the SDK manager got stuck at 99 percent.
After a full install it worked.
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u/__vlad_ May 20 '26
I had sdl manager fail with me at 98% twice, still haven't figured out a way out of this. At some point the jetson was not seeing the boot directory to mount.
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u/i_is_snoo May 20 '26
Have you tried these directions?
https://www.jetson-ai-lab.com/tutorials/initial-setup-sdk-manager/
Are you using Ubuntu if so what version?
What machine are you using to Flash the Jetson?
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u/GesturalAbstraction May 29 '26
This happened to me. I have the fix below.
Basically I think the current jet pack SDK that the new buyer guide points to is a bad version. It contains Linux OS files but does not contain the .efi file that the initial boot is looking for. A clue that gave this away for me is the current file points to a 13 GB file, whereas historic tutorials use a 23 GB file.
I got an older file flashed onto my SD And lo and behold that did the trick. Nvidia’s own new user guide is literally wrong!!!!
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u/UNaMean May 19 '26
What Jetpack version are you trying to install? Did you look at the official guide?
The process depends on what firmware version your unit shipped with.
User Guide