Red Hat Training

A Red Hat training course is available for Red Hat Enterprise Linux

13.4. Resizing a Partition


Do not attempt to resize a partition on a device that is in use.

Procedure 13.4. Resize a partition

  1. Before resizing a partition, boot into rescue mode (or unmount any partitions on the device and turn off any swap space on the device).
  2. Start parted, where /dev/sda is the device on which to resize the partition:
    # parted /dev/sda
  3. View the current partition table to determine the minor number of the partition to resize as well as the start and end points for the partition:
    # print
  4. To resize the partition, use the resize command followed by the minor number for the partition, the starting place in megabytes, and the end place in megabytes.

    Example 13.2. Resize a partition

    For example:
    resize 3 1024 2048


    A partition cannot be made larger than the space available on the device
  5. After resizing the partition, use the print command to confirm that the partition has been resized correctly, is the correct partition type, and is the correct file system type.
  6. After rebooting the system into normal mode, use the command df to make sure the partition was mounted and is recognized with the new size.