Download Super Grub2 Disk – Boot Repair and Recovery Tool

Super Grub2 Disk is a free, open-source bootable rescue tool that helps you recover access to operating systems that can no longer boot due to a corrupted or misconfigured GRUB bootloader. It is an essential utility for Linux system administrators and dual-boot users who need to restore bootability after system updates, disk changes, or accidental bootloader overwriting.

By booting from the Super Grub2 Disk ISO (burned to a USB drive or CD), you gain access to a menu that automatically detects installed operating systems on all connected drives and lets you boot into them directly — even when the host GRUB installation is completely broken. Once booted into your system, you can then reinstall and reconfigure GRUB properly.

Super Grub2 Disk supports BIOS and UEFI systems, works with GRUB2-based Linux distributions (Ubuntu, Debian, Fedora, Arch, etc.) and Windows, and can detect operating systems across multiple disks and partitions including LVM, RAID, and encrypted volumes.

Key Features

• Automatic OS detection – Scans all connected drives and lists bootable operating systems for immediate boot access.
• BIOS and UEFI support – Works on both legacy BIOS and modern UEFI firmware systems.
• Boot into broken systems – Access Linux or Windows even when the bootloader is corrupted or misconfigured.
• LVM and RAID support – Detects partitions on LVM volumes, software RAID arrays, and LUKS-encrypted disks.
• Windows recovery – Boot into Windows installations when the MBR or EFI boot entry is damaged.
• GRUB2 shell access – Provides a GRUB2 command shell for advanced manual boot configuration.
• Portable ISO – Distributable as an ISO image for USB flash drives, CDs, or as a GRUB menu entry.

How to Install

1. Download the Super Grub2 Disk ISO file from the link below.
2. Write the ISO to a USB drive using Rufus, balenaEtcher, or dd on Linux.
3. Boot the target machine from the USB drive (press F2, F12, or Del during startup to access the boot menu).
4. Use the Super Grub2 Disk menu to detect and boot your installed operating system.
5. Once booted into your OS, reinstall GRUB with sudo grub-install /dev/sdX && sudo update-grub to make the fix permanent.