The problem appears to be confined to the scenario where the *only* specified console is a USB device:
# FAILS (when cmdline ends with): console=ttyUSB0,115200n8r console=ttyUSB0,115200 console=ttyUSB0 console=ttyUSB0,115200n8r debug # WORKS (when cmdline ends with): console=ttyUSB0 console=tty console=tty console=ttyUSB0 (The bug title needs to be changed to reflect this). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/771241 Title: kernel command-line console handling broken in natty -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs