At this point, I'd suggest temporarily disabling the network-manager upstart job (which will of course disable networking):
echo manual | sudo tee /etc/init/network-manager.override Does this give a reliable boot? To undo this change simply delete the override file: sudo rm /etc/init/network-manager.override Also, what is the contents of your modules file?: $ cat /etc/modules -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1256949 Title: Dell Latitude E5420 doesn't boot if killswitch is turned to "radio off" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1256949/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
