Upgrade fresh nano 26.1 on usb to latest version 26 fails

[mushymushy]

I have tried to upgrade an nano image on an usb stick. First i imported my settings and everything works, but when i try to upgrade from 26.1 it get stuck and after a while i get 403 forbidden so i cannot follow the upgrade. After two hours i gave up an hard reset and plugged in my older opnsense 25.7 that also refuse to upgrade but stops itself before it bricks the install. It is about 91 packages to update as of today.

Next i tried to upgrade the vanilla nano but with the same result and after an hour of no life i did a hard reset and with no surprise it is not booting.

Have no real debug or messages of what is failing. I wish i had a proper ssd to use instead of an usb but no old one and absolutely no money to get a new cheap drive i am stuck with my two usb sticks for opnsense.

What is a way to upgrade and get a readout what is actually breaking so it can be looked into? Any suggestion of a way to upgrade successfully?