This is easy to reproduce the error message itself, and I think it's happening just because tmux is nested. I'm not sure why it's getting nested in your environment though.
Do you have byobu to automatically start up when you login? How do you have that set up? $ lxc launch ubuntu-daily:noble n $ lxc shell n # apt install -y byobu # byobu-select-backend tmux # byobu # byobu -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2062084 Title: sessions should be nested with care warning To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/byobu/+bug/2062084/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
