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103 lines
3.7 KiB
Text
103 lines
3.7 KiB
Text
// Module included in the following assemblies:
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//
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// <List assemblies here, each on a new line>
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// Base the file name and the ID on the module title. For example:
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// * file name: proc_creating-a-disk-partition-in-linux.adoc
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// * ID: [id='creating-a-disk-partition-in-linux']
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// The ID is used as an anchor for linking to the module. Avoid changing it after the module has been published to ensure existing links are not broken.
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[id='creating-a-disk-partition-in-linux_{context}']
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// The `context` attribute enables module reuse. Every module's ID includes {context}, which ensures that the module has a unique ID even if it is reused multiple times in a guide.
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= Creating a Disk Partition in Linux
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// Start the title of a procedure module with a verb, such as Creating or Create. See also _Wording of headings_ in _The IBM Style Guide_.
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This procedure describes how to partition a storage disk in Linux using the `parted` command.
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== Procedure
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. List the partitions using the `parted -l` command to identify the storage device you want to partition. Typically, the first hard disk (`/dev/sda` or `/dev/vda`) will contain the operating system, so look for another disk to find the one you want. For example:
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----
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sudo parted -l
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Model: ATA RevuAhn_850X1TU5 (scsi)
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Disk /dev/vdc: 512GB
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Sector size (logical/physical): 512B/512B
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Partition Table: msdos
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Disk Flags:
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Number Start End Size Type File system Flags
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1 1049kB 525MB 524MB primary ext4 boot
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2 525MB 512GB 512GB primary lvm
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----
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. Open the storage device. Use the `parted` command to begin working with the selected storage device. For example:
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----
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sudo parted /dev/vdc
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GNU Parted 3.3
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Using /dev/vdc
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Welcome to GNU Parted! Type 'help' to view a list of commands.
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(parted)
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----
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[IMPORTANT]
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====
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Be sure to indicate the specific device you want to partition. If you just enter `parted` without a device name, it will randomly select a storage device to modify.
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====
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. Set the partition table type to `gpt`, then enter `Yes` to accept it.
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----
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(parted) mklabel gpt
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Warning: the existing disk label on /dev/vdc will be destroyed
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and all data on this disk will be lost. Do you want to continue?
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Yes/No? Yes
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----
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[NOTE]
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====
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The `mklabel` and `mktable` commands are both used for making a partition table on a storage device. At the time of writing, the supported partition tables are: `aix`, `amiga`, `bsd`, `dvh`, `gpt`, `mac`, `ms-dos`, `pc98`, `sun`, `atari`, and `loop`. Use `help mklabel` to get a list of supported partition tables. Remember `mklabel` will not make a partition, rather it will make a partition table.
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====
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. Review the partition table of the storage device.
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----
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(parted) print
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Model: Virtio Block Device (virtblk)
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Disk /dev/vdc: 1396MB
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Sector size (logical/physical): 512B/512B
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Partition Table: gpt
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Disk Flags:
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Number Start End Size File system Name Flags
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----
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. Create a new partition using the following command. For example, 1396 MB on partition 0:
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(parted) mkpart primary 0 1396MB
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Warning: The resulting partition is not properly aligned for best performance
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Ignore/Cancel? I
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(parted) print
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Model: Virtio Block Device (virtblk)
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Disk /dev/vdc: 1396MB
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Sector size (logical/physical): 512B/512B
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Partition Table: gpt
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Disk Flags:
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Number Start End Size File system Name Flags
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1 17.4kB 1396MB 1396MB primary
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----
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[NOTE]
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====
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Providing a partition name under GPT is a must; in the above example, primary is the name, not the partition type. In a GPT partition table, the partition type is used as partition name.
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====
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. Quit using the `quit` command. Changes are automatically saved when you quit `parted`.
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----
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(parted) quit
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Information: You may need to update /etc/fstab.
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----
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