EFI Mounter is a macOS utility designed to simplify the management of EFI (Extensible Firmware Interface) partitions with advanced filesystem detection and comprehensive disk management capabilities.

Core Features

EFI Partition Management

• Mount/Unmount EFI Partitions: Easily mount and unmount EFI system partitions with administrator privileges
• Automatic Finder Integration: EFI partitions automatically open in Finder when mounted
• One-Click Operations: Double-click disk entries to quickly mount/unmount EFI partitions
• Visual Status Indicators: Clear visual feedback showing EFI partition mount status

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Filesystem Detection

• Multi-OS Recognition: Automatically detects macOS (APFS, HFS+), Windows (NTFS), Linux (ext4, xfs, btrfs, etc.), and ExFAT filesystems
• Bootloader Detection: Identifies OpenCore and Clover bootloaders with version information
• Boot Disk Identification: Clearly marks and prioritizes the system boot disk
• Intelligent Classification: Smart detection of Linux ExFAT partitions vs standard ExFAT

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EFI Folder Management

• EFI Copy Between Partitions: Copy EFI folders between different mounted EFI partitions
• Backup Creation: Automatic backup creation before overwriting existing EFI folders
• File System Export: Save EFI folders to any location when no destination partitions are available
• Progress Tracking: Real-time progress monitoring with cancel capability
• Safety Warnings: Critical warnings for boot disk operations and multi-boot configurations

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Disk Management

• Comprehensive Disk Display: View internal, external, removable disks, and disk images (DMG/ISO) only GPT DMG or ISO files have the EFI partition
• Smart Filtering: Customizable display options for different disk types
• Disk Ejection: Safe ejection of external and removable disks
• Real-time Updates: Automatic disk list refresh when devices are connected/disconnected
• Detailed Information: Size, filesystem, mount status, and hardware details for each disk

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User Interface

• Menu Bar Integration: Compact menu bar application with popover interface
• Dual Interface Options: Full window view and streamlined menu bar popup
• Pin Functionality: Keep the menu bar window open for continuous access
• Context Menus: Right-click operations for quick disk management
• Responsive Design: Dynamic window sizing based on disk count

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Security & Authentication

• Keychain Integration: Secure storage of administrator credentials in macOS Keychain
• Privilege Management: Safe handling of administrator permissions for disk operations
• Password Validation: Authentication testing and credential management
• Security Transparency: Clear information about password usage and storage
• The app doesn¡¯t collect or send any data to any server. Only IP addresses are logged for the download counter and on the server a

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System Integration

• Launch at Login: Optional automatic startup with macOS
• Notification Support: System notifications for mount/unmount operations
• Automatic Updates: Built-in update checking with Sparkle framework
• Preferences Management: Comprehensive settings for customizing app behavior

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Advanced Features

• Disk Image Support: Recognition and management of mounted DMG and ISO files with real partition schemes
• Multi-boot Detection: Special handling and warnings for systems with multiple operating systems
• Version Information: Display of OpenCore versions and system boot configuration
• Error Handling: Robust error management with user-friendly error messages

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Target Users

• macOS power users managing multiple operating systems using OpenCore Legacy Patcher on unsupported Macs?
• Hackintosh enthusiasts working with OpenCore and Clover
• System administrators handling EFI partition maintenance
• Users needing safe and reliable EFI partition access
• Anyone requiring advanced disk and filesystem management on macOS

EFI Mounter combines powerful functionality with an intuitive interface, making complex EFI partition management accessible while maintaining the safety and security essential for system-level operations.