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第 4 章 Getting started with partitions

Disk partitioning divides a disk into multiple logical areas so each can be handled independently. The hard disk keeps location and size data in a partition table. The OS sees each partition as a separate logical disk, allowing read and write operations individually.

For an overview of the advantages and disadvantages to using partitions on block devices, see the Red Hat Knowledgebase solution What are the advantages and disadvantages to using partitioning on LUNs, either directly or with LVM in between?.

4.1. Creating a partition table on a disk with parted
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Create a partition table on a disk to define the layout for organizing storage space into separate, manageable sections. This essential setup step enables you to create multiple partitions for different purposes and operating systems.

警告

Formatting a block device with a partition table deletes all data stored on the device.

Procedure

  1. Start the interactive parted shell: 

    # parted block-device

  2. Determine if there already is a partition table on the device: 

    (parted) print

    If the device already contains partitions, they will be deleted in the following steps.

  3. Create the new partition table: 

    (parted) mklabel table-type

    • Replace table-type with with the intended partition table type:

      • msdos for MBR

      • gpt for GPT

        For example to create a GPT table on the disk, use: 

        (parted) mklabel gpt

        The changes start applying after you enter this command.

  4. View the partition table to confirm that it is created: 

    (parted) print

  5. Exit the parted shell: 

    (parted) quit
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