The software described in this documentation is either in Extended Support or Sustaining Support. See https://www.oracle.com/us/support/library/enterprise-linux-support-policies-069172.pdf for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.
If any partition on the disk to be configured using parted is currently mounted, unmount it before running parted on the disk. Similarly, if any partition is being used as swap space, use the swapoff command to disable the partition.
Before running parted on a disk that contains data, first back up the data on to another disk or medium.
You can use the parted utility to label a disk, create a partition table, view an existing partition table, add partitions, change the size of partitions, and delete partitions. parted is more advanced than fdisk as it supports more disk label types, including GPT disks, and it implements a larger set of commands.
You can use parted interactively or you can specify commands as arguments. When you run parted interactively, you specify only the name of the disk device as an argument, for example:
# parted /dev/sda
GNU Parted 2.1
Using /dev/sda
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted)
The print command displays the partition table:
(parted) print
Model: ATA VBOX HARDDISK (scsi)
Disk /dev/sda: 42.9GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 1049kB 525MB 524MB primary ext4 boot
2 525MB 42.9GB 42.4GB primary lvm
The mklabel command creates a new partition table:
#parted /dev/sdd
GNU Parted 2.1 Using /dev/sda Welcome to GNU Parted! Type 'help' to view a list of commands. (parted)mklabel
New disk label type?gpt
Warning: The existing disk label on /dev/sdd will be destroyed and all data on this disk will be lost. Do you want to continue? Yes/No?y
Typically, you would set the disk label type to
gpt
or msdos
for an Oracle
Linux system, depending on whether the disk device supports GPT.
You are prompted to confirm that you want to overwrite the
existing disk label.
The mkpart command creates a new partition:
(parted)mkpart
Partition name? []?<Enter>
File system type? [ext2]?ext4
Start?1
End?5GB
For disks with an msdos
label, you are also
prompted to enter the partition type, which can be
primary
, extended
, or
logical
. The file system type is typically
set to one of fat16
,
fat32
, ext4
, or
linux-swap
for an Oracle Linux system. If you
are going to create an btrfs
,
ext*
, ocfs2
, or
xfs
file system on the partition, specify
ext4
. Unless you specify units such as GB for
gigabytes, the start and end offsets of a partition are assumed
to be in megabytes. To specify the end of the disk for
End
, enter a value of -0
.
To display the new partition, use the print command:
(parted) print
Number Start End Size File system Name Flags
1 1049kB 5000MB 4999MB ext4
To exit parted, enter quit.
parted commands such as mklabel and mkpart commit the changes to disk immediately. Unlike fdisk, you do not have the option of quitting without saving your changes.
For more information, see the parted(8)
manual page or enter info parted to view the
online user manual.