Sector size (logical/physical): 512 bytes / 4096 bytes Once done creating partitions, use the p command to display the new partition table: p Disk /dev/sdb: 298.9 GiB, 320072933376 bytes, 625142448 sectors The size can be specified in kibibytes (K), mebibytes (M), gibibytes (G), tebibytes (T), or pebibytes (P).Įnter +100G to set the partition size to 100 GiB: Last sector, +/-sectors or +/-size (209717248-625142414, default 625142414): You can use an absolute value for the last sector or relative value to the start sector, using the + symbol following by the partition size. On the next prompt, you’ll need to enter the last sector. Generally it is always recommended to use the default values for the first value.
Next, the command will ask you to specify the first sector. Hit “Enter” to use the default value ( 1): Partition number (1-128, default 1): You’ll be prompted to enter the partition number. Run the n command to create a new partition: The first one with a size of 100 GiB and the second one will take the rest of the disk space. The next step is to create the new partitions. The output will look something like this: Created a new GPT disklabel (GUID: 4649EE36-3013-214E-961C-51A9187A7503). In this example, we will use a GPT partition table.Įnter g to create a new empty GPT partition table: g GPT doesn’t support extended or logical partitions. With GPT, you can have up to 128 partitions. If you need more partitions, one of the primary partitions can be set as an extended partition and hold additional logical partitions. MBR has a limit of 4 primary partitions.If you have a disk of 2 TiB or larger, use GPT. The MBR standard supports creating a disk partition up to 2 TiB.Use MBR to boot the disk in legacy BIOS mode.The main points to consider when choosing what partitioning standard to use: GPT is a newer standard allowing and has many advantages over MBR. MBR and GPT are the two most popular partition scheme standards, that store the partitioning information on a drive in a different way. Skip this step if the device already has a partition table and you want to keep it.įdisk supports several partitioning schemes. If you are partitioning a new drive, before starting to create partitions first, you need to create a partition table. The command prompt will change, and the fdisk dialogue where you can type in commands will open: Welcome to fdisk (util-linux 2.34).Ĭhanges will remain in memory only, until you decide to write them.īe careful before using the write command.
In this example we’ll work on /dev/sdb: fdisk /dev/sdb To start partitioning the drive, run fdisk with the device name. Generally, SATA device names follow the pattern /dev/sd, while NVMe device names have the following pattern /dev/nvmen. The output above shows the current partition tables of all devices that are attached to your system. Sector size (logical/physical): 512 bytes / 512 bytes
When no device is given as an argument, fdisk will print partition tables of all devices listed in the /proc/partitions file: fdisk -l Disk /dev/nvme0n1: 232.91 GiB, 250059350016 bytes, 488397168 sectors For example to list the /dev/sda partition table and partitions you would run: fdisk -l /dev/sda To list the partition table of a device, invoke the fdisk command with the -l option, followed by the device name. Privileges can manipulate the partition tables. In this article, we will talk about the fdisk command.įdisk is a menu-driven command-line utility that allows you to create and manipulate partition tables on a hard disk.īe aware that fdisk is a dangerous tool and should be used with extreme caution. In Linux, there are several tools that you can use to create partitions, with fdisk being the most commonly used one. A drive needs to have at least one partition before you can format it and store files on it. The first thing you need to do after installing a new SSD or hard disk is to partition it.
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