My upgrade to 9.10 went bad, leaving Ubuntu dead in water. Can still boot into restore mode, thank goodness. But I need to copy some files from the old installaton before I reinstall from scratch. I would like to copy to my Windows partition; or to a USB thumb drive; or to an external hard drive. But I can't figure out how to get to any of those things. If they are already mounted, how do I find them? If not, how do I mount them?