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RPI Zero W not booting  

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daSpud
(@daspud)
Eminent Member
RPI Zero W not booting

I tried this https://help.prusa3d.com/en/article/prusaprint-rpi-zero-and-octoprint_2180 and got nothing on the wireless so I got a mini HDMI adapter so I could see what was going on.  I used the USB micro port to supply power.  The micro SD card imaged and verified perfectly (according to the program).  I was wondering why recommend a 16GB disk when the process is complete I had 12 GB of unformatted area.Changed the 4 lines and put in the root password and booted. https://www.screencast.com/t/TvNCmyBd8Q is what I got.  IT says unable to mount root file system.

Best Answer by Diem:

Kernel Panic is usually caused by a bad uSD card.  After verifying did you dismount it properly?

Reinstall the uSD and try again.

Cheerio,

Posted : 17/08/2021 2:22 pm
bobstro
(@bobstro)
Illustrious Member
The RPi Zero W is NOT recommended and is specifically called out as NOT SUPPORTED for OctoPrint

Are you getting the boot errors even when powering the RPi with a proper dedicated power supply?

The RPi Zero looks like a really neat solution, but even the Prusa knowledgebase you linked to notes that it's underpowered. There are a number of reasons beyond video problems with using the RPi Zero W directly mounted to the Mk3, and the developer of OctoPrint has gone to great lengths to specifically recommend against it.

I don't understand why Prusa won't take that page down. The Zero causes a lot of heartbreak and wasted time. I get it: The Zero is very cool to play with. It's just not the best fit for this use.

My notes and disclaimers on 3D printing

and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan

Posted : 17/08/2021 4:04 pm
Diem
 Diem
(@diem)
Illustrious Member

Kernel Panic is usually caused by a bad uSD card.  After verifying did you dismount it properly?

Reinstall the uSD and try again.

Cheerio,

Posted : 17/08/2021 5:21 pm
daSpud liked
daSpud
(@daspud)
Eminent Member
Topic starter answered:
Some progress

Thank you.  It looks like maybe I did not because windows complained when I inserted the disk to reflash.

It is curious that it booted and went through and adjusted everything and I was able to connect using the v4 ipaddress.  When I powered it on again it only listed v6 addresses but I was able to connect using octopi.local. 

Then I put it in the printer and cannot connect to the network so I am thinking there must be a soldering error where it is not getting power.  Will continue to check on that.

As to the power of the Zero.  I only wanted wireless connection and I like the idea of integration of the board.  One big drawback I see is that I cannot connect a video cable to see the boot progress (or lack of it).

Posted : 17/08/2021 7:02 pm
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