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sgdisk — Manage GUID Partition Tables (GPT). Part of the GPT fdisk suite; designed for scripting and automati

Submitted by: @import:tldr-pages·Mar 2, 2026·

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Problem

How to use the sgdisk command: Manage GUID Partition Tables (GPT). Part of the GPT fdisk suite; designed for scripting and automation. More information: <https://manned.org/sgdisk>.

Solution

sgdisk — Manage GUID Partition Tables (GPT). Part of the GPT fdisk suite; designed for scripting and automation. More information: <https://manned.org/sgdisk>.

Display basic GPT partition summary data for a device:

sudo sgdisk {{[-p|--print]}} {{/dev/sdX}}

Wipe both GPT and MBR data structures from a device (destroys all partition information):

sudo sgdisk {{[-Z|--zap-all]}} {{/dev/sdX}}

Convert a GPT disk to MBR format using up to four partitions:

sudo sgdisk {{[-m|--gpttombr]}} {{1:2:3:4}} {{/dev/sdX}}

Delete a partition entry by number (data in sectors remains untouched):

sudo sgdisk {{[-d|--delete]}} {{1}} {{/dev/sdX}}

Save the current in-memory GPT data (protective MBR, headers, and table) to a binary backup file:

sudo sgdisk {{[-b|--backup]}} {{/path/to/backup.gpt}} {{/dev/sdX}}

Load GPT data from a backup file (restoring from a non-original disk is not recommended):

sudo sgdisk {{[-l|--load-backup]}} {{/path/to/backup.gpt}} {{/dev/sdX}}

Verify GPT structures for CRC errors, mismatches, or inconsistencies:

sudo sgdisk {{[-v|--verify]}} {{/dev/sdX}}

Display a summary of available partition type codes (no device required):

sgdisk {{[-L|--list-types]}}

Code Snippets

Display basic GPT partition summary data for a device

sudo sgdisk {{[-p|--print]}} {{/dev/sdX}}

Wipe both GPT and MBR data structures from a device (destroys all partition information)

sudo sgdisk {{[-Z|--zap-all]}} {{/dev/sdX}}

Convert a GPT disk to MBR format using up to four partitions

sudo sgdisk {{[-m|--gpttombr]}} {{1:2:3:4}} {{/dev/sdX}}

Delete a partition entry by number (data in sectors remains untouched)

sudo sgdisk {{[-d|--delete]}} {{1}} {{/dev/sdX}}

Save the current in-memory GPT data (protective MBR, headers, and table) to a binary backup file

sudo sgdisk {{[-b|--backup]}} {{/path/to/backup.gpt}} {{/dev/sdX}}

Context

tldr-pages: common/sgdisk

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