Updated test images (2026-04-13 Bookworm and Trixie)

[ClusterHAT]

I've added a new "Testing" section in the rpi-imager JSON - where you'll currently find updated Bookworm and Trixie for testing. These are testing images so if you find a problem please create a new thread here or on Discord ( https://discord.gg/QZdxhgsArW ).

You will need rpi-imager v2 to write the images (download from https://www.raspberrypi.com/software/ ).

Click "APP OPTION"

Click EDIT next to Content Repository

Select "Use custom URL"

Paste in ""

Click "APPLY & RESTART".

Networking has changed from RNDIS to a mix of NCM (pX) and ECM (usbboot) which have different USB PIDs so they need to be added to the udev rules on controllers running older images using these two commands. sudo sed -i 's/=="0020"/=="002[0-5]"/' /etc/udev/rules.d/90-clusterctrl.rules sudo udevadm control --reload-rules usbboot images are in https://dist.8086.net/clusterctrl/testing/usbboot/ (trixie usbboot are currently missing as cloud-init still needs to be appeased).

[Darin NG7O]

Thank you! I'll post any updates I may have after testing it out.

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[bowguy]

Works great!

Thanks

[Steve Kuervers]

Just finished a clean install on a Pi4 with Clusterhat 2.5 variant, and 4x Pi Zero 2W on SDCards.  Used Raspberry Pi Imager with the custom json file.  I used the Bridge image for Trixie ARM64.

No issues found, although the initial boot was slow (as per normal).  All five devices were able to fully upgrade their OS without issue.  The Pi4 was also updated to the current EEPROM release without issue.

I'll do some deeper testing over the next week.

Steve

[Steffen Schlaer]

Hello together,

I've tried the Trixie based CNAT Lite image on Pi5 with Clusterhat 2.5 variant and P1,P2,P3 Lite images on Pi Zero 2W with SDCards without any luck yet. After running clusterctrl on p1 p2 p3 command I don't see the Pi Zero 2W devices in the lsusb -t listing.

Than I used recent old-stable bookworm images and all was working fine. So it is not a setup or connection issue.

I also tried the Trixie based P3 image again, instead of the Bookworm based P3 image. I see in lsusb -t the Pi Zero 2W device from P3, but could not ping its IP address or access it via SSH anymore.

Let me know, what else I should check with Trixie based images together with CNAT before setting up more stuff on my cluster :)

Steffen

[Steve Kuervers]

Which USB port are you using on the main Pi to connect to the HAT for the USB serial/network?  That's occasionally been an issue.

Unfortunately, I've done all my testing on a Bridge image, so I can't confirm the status of the NAT image.

Steve

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