1.5.1. 安裝器：debian-installer
debian-installer，以極度模組化設計以便儘量通用，針對前述的第一個目標。含蓋極為廣泛的安裝環境，能夠支援特殊個案的安裝器。
模組化，讓情況很複雜，發展者極難發掘此工具；但在圖書或文字模式下，使用者的經驗仍然差不多。花了極大的力氣減少安裝所需的問題，特別感謝自動偵測硬體的軟體。
值得注意的是 Debian 的衍生散佈版在這個層面上有很大的不同，提供有限的安裝方式 (通常祗限 i386 或 amd64 架構兩種)，但對初入門者更為友善。另一方面，它們通常不會讓軟體套件的內容離太遠，以便盡可能利用 Debian 提供的廣大軟體而不致於發生相容性問題。
Quantitatively, Debian is undeniably the leader in this respect, with over 25,000 source packages. Qualitatively, Debian’s policy and long testing period prior to releasing a new stable version justify its reputation for stability and consistency. As far as availability, everything is available on-line through many mirrors worldwide, with updates pushed out every six hours.
Many retailers sell DVD-ROMs on the Internet at a very low price (often at cost), the “images” for which are freely available for download. There is only one drawback: the low frequency of releases of new stable versions (their development sometimes takes more than two years), which delays the inclusion of new software.
