Arch manual pages

DELPART(8) System Administration DELPART(8)

delpart - tell the kernel to forget about a partition

delpart device partition

delpart asks the Linux kernel to forget about the specified partition (a number) on the specified device. The command is a simple wrapper around the "del partition" ioctl.

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

addpart(8), fdisk(8), parted(8), partprobe(8), partx(8)

The delpart command is part of the util-linux package and is available from
January 2015 util-linux