gptsync ☆

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Description:
GPT and MBR partition tables synchronization tool

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: System utilities

Tags: partitioning gpt mbr disk-utility bootloader system-tools

Install: brew install gptsync

About:
Gptsync is a command-line utility designed to maintain consistency between GPT (GUID Partition Table) and legacy MBR partition tables on the same disk. It resolves conflicts that can arise during dual-boot setups or disk cloning operations by synchronizing partition entries. This ensures system firmware and operating systems can reliably access disk layouts.

Key Features:

Bidirectional synchronization between GPT and MBR partition tables
Command-line interface for scripting and automation
Preserves existing partition data and boot configurations
Supports complex disk layouts with multiple operating systems

Use Cases:

Resolving boot issues in dual-boot Windows/macOS/Linux environments
Fixing partition table inconsistencies after disk cloning or resizing operations

Alternatives:

gdisk – gdisk is a more comprehensive GPT manipulation tool, while gptsync focuses specifically on GPT-MBR synchronization
fdisk – fdisk handles partition management but lacks specialized GPT-MBR synchronization capabilities

Version History

Detected	Version	Rev	Change	Commit
Sep 12, 2025 1:10pm		0	VERSION_BUMP	4408448c