As in total freeze up, nothing moved, no ability to power off. Had to turn it off by removing the batteries. It was on mains power at the time. that screenshot shows how it got stuck. just stuck there at 52% with no ability to do anything…
I’m using your Ubuntu file, which I think is the most recent one? https://drive.google.com/file/d/1ecHw8gCouFYO5DrLd7VHPr-8A_dBfULu/view?usp=drive_link
It’s a shame as it was buttery smooth and really nice to use until this point! LOL
I think unpacking the kernel is unrelated to the crash. The new kernel will be installed but isn’t running until next reboot.
Have you tried again? Are you over clocking the CM5?
No overclocking, and I have a good thermal solution, so it’s not overheating. Tried rebooting multiple times and no joy. I just reflashed Trixie and it’s all working fine! I think I’ll stick to the safety of Debian for now 
Ubuntu is just pretty 
Really appreciate your help this afternoon though
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I’ll have to check out that image. You can hold the kernel from updates for now. sudo apt-mark hold clockworkpi-kernel
My pleasure, feel free to reach out anytime!
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Do any of these images work for the Radxa CM5?
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Thanks! I followed up there
The only Ubuntu I see there is dated Feb 25. Is that the right one?
Yes; the kernel hasn’t been updated for a short time, but the rest of the system can be upgraded using apt(8).
I still can’t make it boot when installed on the NVMe. Trixie boots just fine from the same NVMe so I know the hardware is OK.
Check your fstab. It should be /dev/nvme… or something. Not /dev/mmcblk
My fstab only has two lines.
LABEL=writable / ext4 discard 0 1
LABEL=system-boot /boot/firmware vfat defaults 0 1