How to use the command delpart (with examples)

The delpart command is a Linux kernel utility that allows users to instruct the kernel to forget about a partition on a specified device. This can be useful in situations where a partition needs to be removed or when there is a need to correct partition table information.

Use case 1: Tell the kernel to forget about the first partition of /dev/sda

Code:

sudo delpart /dev/sda 1

Motivation:

In some cases, there might be a need to delete a specific partition from a device. By using the delpart command with the appropriate arguments, the kernel can be instructed to forget about the specified partition and remove it from the partition table.

Explanation:

• sudo: This command is used to execute the delpart command with administrative privileges.
• delpart: The actual command that the kernel executes.
• /dev/sda: Specifies the device from which the partition needs to be deleted. In this example, /dev/sda is the device.
• 1: Indicates the number of the partition to be deleted. In this example, 1 refers to the first partition.

Example output:

The output will not be displayed unless an error occurs. If successful, the partition will be removed from the partition table of /dev/sda.

Conclusion:

The delpart command provides a straightforward way to delete partitions from a device. By specifying the appropriate device and partition number, users can accurately instruct the Linux kernel to forget about the partition, resulting in its removal from the partition table.