I'm experiencing this bug on an Intel NUC. I attached "dmidecode -u" output in case it's useful.
** Attachment added: "dmidecode.txt" https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1931148/+attachment/5506267/+files/dmidecode.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1931148 Title: upgrade from 20.10 to 21.04 fails codec can't decode byte To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1931148/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs