No HDMI output when booting from USB drive on rPi W2

[atomant]

Hi atomant
It's a bit of a long shot, but if you have a keyboard plugged
in while booting from your USB device, does that change
anything?

I have a wireless keyboard at hand and I had booted with and without it's receiver plugged into the hub, makes no difference.

[Rich]

Hi atomant
But was the keyboard turned on at the time?

[atomant]

try *their* default

I've just now tried Raspberry Pi OS Lite (https://downloads.raspberrypi.com/raspios_lite_arm64/images/raspios_lite_arm64-2024-11-19/2024-11-19-raspios-bookworm-arm64-lite.img.xz) and low and behold, it just boots fine from USB and i get video.
I must be doing something wrong with Tiny Core.

All i did was this (at the beginning of all of this misery):
-Downloaded this: http://tinycorelinux.net/15.x/armhf/releases/RPi/piCore-15.0.0.zip
-Used a software called Rufus (version 4.6) to write the image onto the USB drive and also onto an SD card (success, no errors)
-On the SD card I added the following line at the very end of config.txt: program_usb_boot_mode=1
-Booted from the SD card, this worked fine, i got a prompt
-Powered off, removed SD card (i also removed the "program_usb_boot_mode=1" line from config.txt since as far as i know it's a one-time thing)
-Tried booting from USB drive and here we are, the rest you already know

Am I missing something? Should there be some setting I need to change or add?

[atomant]

Hi atomant
But was the keyboard turned on at the time?

Yep.

[atomant]

-I downloaded 14.1.0 from here: http://tinycorelinux.net/14.x/armv6/releases/RPi/piCore-14.1.0.zip
-Burned to USB drive
-Booted it up and got video output.
-Burned 15.0.0 again, booted it, no video output (same as originally)
-Just to make sure, burned 14.1.0 again
-Booted it up, got video again

Hmm... i mean, I can live with 14.1.0, it's just...weird...

[Paul_123]

A Raspberry pi device older than a pi4 will not boot from USB by default.  A pi Zero cannot boot from USB, but the Zero2W can if you have followed this procedure
https://www.raspberrypi.com/documentation/computers/raspberry-pi.html#usb-mass-storage-boot

But I interpreted his post that he wasn't getting video if he also had an USB drive plugged in, but he was still booting off of the USB card.   In this case it is almost always a power supply issue.  USB ports on devices like the Zero2W cannot supply much power.

[atomant]

A Raspberry pi device older than a pi4 will not boot from USB by default.  A pi Zero cannot boot from USB, but the Zero2W can if you have followed this procedure
https://www.raspberrypi.com/documentation/computers/raspberry-pi.html#usb-mass-storage-boot

-The rPi Zero can boot from USB if you place nothing but bootcode.bin on an SD card and the rest of the system on an USB drive.
-The rPi Zero 2(W) will indeed boot from USB if you do what is described at your link and i did do it
-It will boot and give video with 14.1.0 (see my earlier post) but will not give video (but still boot as it seems) with 15.0.0

But I interpreted his post that he wasn't getting video if he also had an USB drive plugged in, but he was still booting off of the USB card.   In this case it is almost always a power supply issue.  USB ports on devices like the Zero2W cannot supply much power.

Correct, 15.0.0 boots from SD card and has video, boots from USB but doesn't have video. I have a powered HUB.

I'm now comparing the config file in 14.1.0 with the one in 15.0.0

[atomant]

All right, I give up, I will just stick to 14.1.0.

Thank you all for your time and effort.

[gadget42]

mostly for future thread visitors, please be aware of "known problems"(and probably some _unknown_as_of_yet_ ones as well):

https://www.raspberrypi.com/documentation/computers/raspberry-pi.html#known-problems

for example:

Raspberry Pi boot string

The "Raspberry Pi Boot" string in the DHCP reply requires the extra three spaces due to an error calculating the string length.

Fixed in Raspberry Pi 3 Model B+.

reminds of Lynyrd Skynyrd's Gimme Three Spaces Steps:

https://www.youtube.com/watch?v=hhnBgoAL0xw

and no reference to Skynyrd is complete without Simple Man:

https://www.youtube.com/watch?v=l-5aPNxv-pU

(comments at Simple Man are definitely thought-provoking to one and all)

enjoy!