ADDPART(8) System Administration ADDPART(8)

# [NAME](#NAME)

addpart - tell the kernel about the existence of a partition

# [SYNOPSIS](#SYNOPSIS)

**addpart** *device partition start length*

# [DESCRIPTION](#DESCRIPTION)

**addpart** tells the Linux kernel about the existence of the specified partition. The command is a simple wrapper around the "add partition" ioctl.

This command doesn’t manipulate partitions on a block device.

# [PARAMETERS](#PARAMETERS)

*device*

The disk device.

*partition*

The partition number.

*start*

The beginning of the partition (in 512-byte sectors).

*length*

The length of the partition (in 512-byte sectors).

**-h**, **--help**

Display help text and exit.

**-V**, **--version**

Display version and exit.

# [SEE ALSO](#SEE_ALSO)

[**delpart**(8)](/man/os/util-linux/delpart.8), [**fdisk**(8)](/man/os/util-linux/fdisk.8), [**parted**(8)](/man/os/util-linux/parted.8), [**partprobe**(8)](/man/os/util-linux/partprobe.8), [**partx**(8)](/man/os/util-linux/partx.8)

# [REPORTING BUGS](#REPORTING_BUGS)

For bug reports, use the *issue tracker* <https://github.com/util-linux/util-linux/issues>.

# [AVAILABILITY](#AVAILABILITY)

The **addpart** command is part of the util-linux package which can be downloaded from *Linux Kernel Archive* <https://www.kernel.org/pub/linux/utils/util-linux/>.

2026-10-30 util-linux 2.42.4

---

Document: addpart(8) from util-linux 2.42.4-r2 (Chainguard OS)