Hi, I'm using Debian (stable) on a UML (user-mode-linux). Everything works fine (apart from using devfs which required me to edit /etc/inittab), except that I can't run fsck on my root filesystem, because it complains about unsupported features. It's ext2 with features (according to dumpe2fs): dir_index filetype sparse_super. Any ideas which one's it doesn't like so I can try to disable it. Upgrading fsck isn't really an option, because I have to start using the libc in testing and all the dependencies start piling on, and I don't really want to switch to unstable at the moment.