sgdisk

all

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

Options (8)

-p, --printboolean

Display basic GPT partition summary data for a device

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

-Z, --zap-allboolean

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

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

-m, --gpttombrboolean

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

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

-d, --deleteboolean

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

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

-b, --backupboolean

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

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

-l, --load-backupboolean

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

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

-v, --verifyboolean

Verify GPT structures for CRC errors, mismatches, or inconsistencies

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

-L, --list-typesboolean

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

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

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]