Red Hat Training

A Red Hat training course is available for RHEL 8

Chapter 17. Removing a partition with parted

Using the parted utility, you can remove a disk partition to free up disk space.

Warning

Removing a partition deletes all data stored on the partition.

Procedure

  1. Start the interactive parted shell:

    # parted block-device
    • Replace block-device with the path to the device where you want to remove a partition: for example, /dev/sda.
  2. View the current partition table to determine the minor number of the partition to remove:

    (parted) print
  3. Remove the partition:

    (parted) rm minor-number
    • Replace minor-number with the minor number of the partition you want to remove.

    The changes start applying as soon as you enter this command.

  4. Verify that you have removed the partition from the partition table:

    (parted) print
  5. Exit the parted shell:

    (parted) quit
  6. Verify that the kernel registers that the partition is removed:

    # cat /proc/partitions
  7. Remove the partition from the /etc/fstab file, if it is present. Find the line that declares the removed partition, and remove it from the file.
  8. Regenerate mount units so that your system registers the new /etc/fstab configuration:

    # systemctl daemon-reload
  9. If you have deleted a swap partition or removed pieces of LVM, remove all references to the partition from the kernel command line:

    1. List active kernel options and see if any option references the removed partition:

      # grubby --info=ALL
    2. Remove the kernel options that reference the removed partition:

      # grubby --update-kernel=ALL --remove-args="option"
  10. To register the changes in the early boot system, rebuild the initramfs file system:

    # dracut --force --verbose

Additional resources

  • parted(8) man page