Minfo 1.0.2 May 2026

It is a testament to the Unix philosophy: do one thing, do it well, and do it without side effects . By reading the boot sector directly, interpreting FAT fields accurately, and offering scriptable output, minfo 1.0.2 remains as useful today as the day it was tagged in the GNU mtools repository.

minfo -v /dev/sdb If minfo shows "Video CD" or "No DOS filesystem", you know it's a true corruption. But if minfo shows a valid boot sector with a strange media descriptor (e.g., 0xF8 vs 0xF0), you can fix it by rewriting only the descriptor—not the whole drive. Before cloning a floppy or SD card, capture its geometry: minfo 1.0.2

In this article, we will dissect minfo 1.0.2, exploring its functionality, use cases, installation, and why this version number matters in a world of constant software churn. At its core, minfo 1.0.2 is a command-line program that prints the content of a boot sector or Master Boot Record (MBR) from a FAT file system. It is part of mtools (version 4.0.18 or later), a collection of utilities designed to manipulate MS-DOS file systems without mounting them. It is a testament to the Unix philosophy:

Unlike standard commands like fdisk or file , which interpret data through the lens of the host OS, minfo reads the raw superblock and boot sector fields directly from the device or disk image. It then translates those binary bytes into human-readable output. But if minfo shows a valid boot sector

In the sprawling ecosystem of command-line utilities, few tools strike the perfect balance between simplicity and power. Whether you are a forensic analyst piecing together a damaged file system, a developer debugging mount failures, or a vintage computing enthusiast, understanding your media at a structural level is non-negotiable.

$ minfo -t /dev/loop0 512 2048 2 0x08 That means: 512-byte sectors, 2048 bytes per cluster, 2 FATs, media descriptor 0x08 (fixed disk). How does it stack up against modern alternatives?

| Flag | Description | Example Output | |------|-------------|----------------| | -v | Verbose; prints every boot sector field | "Sector size: 512", "Cluster size: 4096" | | -D | DOS-compatible output; uses = delimiter | "sector_size=512" | | -t | Table format (space-separated, ideal for scripts) | "512 4096 2 512" | | drive: | Target (e.g., a: , c: , or device path) | minfo c: (uses mtools config) |