4.5. Resizing a partition with parted

Procedure

1. Start the parted utility:

   # parted block-device

2. View the current partition table:

   (parted) print

   From the partition table, determine:

   • The minor number of the partition.

   • The location of the existing partition and its new ending point after resizing.

     重要

     When resizing a partition, ensure there is enough unallocated space between the end of the partition being resized and either the beginning of the next partition, or the end of the disk if it is the last partition. If there is not sufficient space, parted will return an error. However, it is best to verify the available space before attempting to resize to avoid partition overlap.

3. Resize the partition:

   (parted) resizepart 1 2GiB

   • Replace 1 with the minor number of the partition that you are resizing.
   • Replace 2 with the size that determines the new ending point of the resized partition, counting from the beginning of the disk. You can use size suffixes, such as 512MiB, 20GiB, or 1.5TiB. The default size is in megabytes.

4. View the partition table to confirm that the resized partition is in the partition table with the correct size:

   (parted) print

5. Exit the parted shell:

   (parted) quit

6. Verify that the kernel registers the new partition:

   # cat /proc/partitions

7. Optional: If you extended the partition, extend the file system on it as well.