How to List All Connected Disks on Ubuntu with lsblk, fdisk, and GUI Tools

In this tutorial you will learn how to list every disk (SSD, HDD, USB, etc.) connected to an Ubuntu machine using both command‑line utilities and graphical applications.

Using lsblk

Run the basic command: sudo lsblk The TYPE column indicates whether an entry is a whole disk or a partition. By default the output also shows loop devices created by snap packages, which can be noisy.

Hide loop devices with the -e7 option: sudo lsblk -e7 You can further hide CD/DVD devices by adding -e11: sudo lsblk -e7 -e11 Alternatively, filter with grep: sudo lsblk | grep -v '^loop' To display vendor and model information, use the SCSI view:

sudo lsblk --scsi

Using fdisk

List all disks with sizes and partitions: sudo fdisk -l If you know a device name (e.g., /dev/sdb), query it directly: sudo fdisk -l /dev/sdb Multiple devices can be inspected in one call:

sudo fdisk -l /dev/sda /dev/sdb

Using parted

First install parted if it is not present: sudo apt install parted -y Then list all disks: sudo parted -l The output format mirrors fdisk but automatically omits loop devices.

Graphical tools

GNOME Disks

Open the application from the Applications menu. The left pane shows every connected storage device; selecting a disk reveals its size, partitions, and detailed information on the right.

GParted

Install GParted if needed: sudo apt install gparted -y Launch it (you will be prompted for your password). Use the drop‑down menu in the top‑right corner to choose a disk; the partitions of the selected disk are displayed below.

These methods cover both command‑line and GUI approaches for enumerating disks on Ubuntu, allowing you to choose the most convenient tool for your workflow.