I am having the same problem, i am not using any virtualization, I upgraded from 8.04 to 10.04 and now can start my machine. I get error
libudev: udev_monitor_new_from_netlink: error getting socket: Invalid argument segfault and after that my USB keyboard also doesn't work. -- After upgrade from Karmic boot fails, mountall and udevd fail https://bugs.launchpad.net/bugs/516684 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs