kde@gentoo.org Gentoo KDE Project Install app-arch/p7zip for 7zip archive support in kde-apps/ark Install kde-apps/kfloppy to format and create DOS or ext2fs filesystems in a floppy. Install app-arch/lrzip for LRZ archive support in kde-apps/ark Install app-arch/unar or app-arch/unrar for RAR archive support in kde-apps/ark