Disk partitioning in Linux is the process of creating different partitions on a hard disk that can be used to store data or install an operating system.
Disk partitioning is important for optimal use of hard disk space and organization of data. It allows you to create partitions that can be used for different purposes, such as installing an operating system, storing user files, or backing up data.
Disk partitioning also ensures data security, as partitions can be separated from each other and protected from data corruption or loss. In addition, disk partitioning allows you to better manage disk space, such as creating partitions of different sizes or combining multiple partitions into one large partition. Operating systems, including Linux, require certain disk partitioning for proper installation and operation. For example, the OS may require a separate partition for the boot loader or swap partition.
Disk partitioning defines the structure and organization of data on a disk, and determines which partitions can be available for use. It can also include the creation of file systems on the partitions, which allows the operating system to use those partitions to store files and data.
In Linux, there are several types of disk partitioning such as MBR (Master Boot Record) and GPT (GUID Partition Table). MBR is the older disk partitioning format and supports up to 4 primary partitions. GPT is the newer standard and supports more flexible disk partitioning, allowing more than 4 primary partitions and including support for large disks (more than 2 TB).
The parted utility, which can be installed on Linux, allows you to perform operations to create, modify and delete partitions on a disk, as well as format partitions using different file systems.