Robbie, I've experienced this with Natty Beta 1. I can confirm that the replacement of vesamenu.c32 recommended by Mikele gets me past the error and I can install. What a pain! :-)
~JFo -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/645818 Title: Unknown keyword in configuration file: gfxboot -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs