fdisk

partition table manipulator

TLDR

List partitions

$ sudo fdisk -l

Start the interactive partition manipulator

$ sudo fdisk [/dev/sdX]

SYNOPSIS

fdisk [-l] [-u] [-s partition] [device]

DESCRIPTION

fdisk is a dialog-driven program for managing partition tables and partitions on storage drives. It supports MBR, GPT, SGI, and Sun partition tables.

PARAMETERS

-l, --list

List partition tables for all devices or specified device

-u, --units

Display units in sectors (default) or cylinders

-s, --getsz partition

Print size of partition in 512-byte sectors

-b, --sector-size size

Specify physical and logical sector size

-c, --compatibility mode

Specify compatibility mode (dos or nondos)

-L, --color

Colorize output

-t, --type type

Specify disk label type (dos, gpt, sgi, sun)

m: Display help menup: Print partition tablen: Create new partitiond: Delete partitiont: Change partition typel: List known partition typesw: Write changes and exitq: Quit without saving changesg: Create new GPT partition tableo: Create new DOS partition table

INSTALL

sudo apt install fdisk

sudo apk add util-linux-misc

CAVEATS

Dangerous: Changes are written when you press 'w'. Double-check before writing. Modern fdisk supports GPT natively. MBR partition tables (not fdisk) are limited to 2TB; use GPT for larger disks.

HISTORY

Part of util-linux package. Based on the original fdisk from Minix and early Linux. One of the oldest Linux disk partitioning tools.