Fedora Core 1 was based on Red Hat Linux 9 and shipped with version 2.4.19 of the Linux kernel , version 2.4 of the GNOME desktop environment , and version 3.1.4 of KDE ( the K Desktop Environment ) . Fedora Core 1 was based on Red Hat Linux 9 and shipped with version 2.4.19 of the Linux kernel , version 2.4 of the GNOME desktop environment , and K Desktop Environment 3.1 .