Select a partition to remove it or to specify how it should be used. At a bare minimum, you need one partition to contain the root of the file system (whose mount point is /).  Most people also feel that a separate swap partition is a necessity.  "Swap" is scratch space for an operating system, which allows the system to use disk storage as "virtual memory".
Fren aḥric ara tekkseḍ neɣ i wakken ad t-tferneḍ amek ara yettuseqdac. S wazal adday, tesriḍ yiwen uḥric ideg ara yili uẓar n unagraw n yifuyla (agaz-ines n userkeb d /).  Amur ameqqran n yimdanen ttxemmimen belli aḥric n swap yettuɛezlen d ayen ilaqen.  "Swap" d tallunt n useqdec n unagraw n wammud i yettaǧǧan anagraw ad iseqdec aklas n uḍebsi d "takatut tuhlist".