Either apt is optional, or it is not? b. dpkg: regarding libc6_2.1.2-0pre7.deb containing libc6: libc6 conflicts with apt (<< 0.3.0) apt (version 0.1.9) is installed. dpkg: error processing libc6_2.1.2-0pre7.deb (--install): conflicting packages - not installing libc6 Package: apt Status: install ok installed Priority: optional