This is the reference page for secure boot on UbuntuCore, a special product for embedded devices completely built out of snap packages.
This is not a reference page for any other Ubuntu product (else it would not be in the UbuntuCore section of the website)
Please see the top level page for UbuntuCore first:
I’ll consider your answer to be as such. I think all either install the 6.17 or worse comes to worse wait till Ubuntu 25.10 exits testing. Thanks for your patience with me considering that this conversation has been a long journey. I’ll see myself out.