install

Additional install commands

macOS

Homebrewverified · 100%

brew install squashfs

local Homebrew formula metadata

Linux

openSUSE zypperverified · 92%

sudo zypper install squashfs

openSUSE Tumbleweed package metadata · squashfs · source: download.opensuse.org

overview

Package summary

Compressed read-only file system for Linux

Project links

Commands and aliases

mksquashfs
sqfscat
sqfstar
unsquashfs

history

Project history and usage

Squashfs-tools provides the user-space tools for creating, extracting, listing, and converting SquashFS compressed read-only filesystems.

Project history

The Squashfs-tools changelog records an initial 1.0 release in 2002 and a 4.0 release in April 2009 with major filesystem improvements. The Linux kernel documentation describes SquashFS as a compressed read-only filesystem for Linux intended for archival use and constrained block-device or memory systems.

Adoption history

The official kernel documentation says squashfs-tools is very likely packaged by Linux distributions, and the project README includes packaging-status material. The input package-manager facts list Homebrew and zypper for this formula.

How it is used

The main commands are mksquashfs for building images and unsquashfs for extracting or listing them, with newer sqfstar and sqfscat commands supporting tar-style and cat-style workflows. Recent releases emphasize reproducible images, parallel reading, streaming output, and richer help/man-page coverage.

Why package nerds care

Package nerds care because SquashFS images are common in live systems, appliance-style images, containers, firmware, and compressed software payloads. The tools are the boring but essential bridge between package contents and a compact read-only filesystem artifact.

Timeline

2002: Squashfs-tools 1.0 initial release.
2006: 3.0 and 3.1 releases added major filesystem and tools improvements.
2009: 4.0 release introduced major filesystem improvements.
2023: 4.6 release improved xattrs, pseudo files, and conversion workflows.
2025: 4.7 release added parallel file reading and reproducible-image improvements.
2026: 4.7.5 bug-fix release published.

Related projects

Linux SquashFS kernel driver, cramfs, initramfs/live media build systems, mksquashfs, unsquashfs, sqfstar, sqfscat.

Sources

security posture

Risk level: blue

broad file, network, media, or database tool signal.

Risk classifier

blue risk · medium confidence · tool

Why

broad file, network, media, or database tool signal

Signals

text:compress

Install behavior

No Homebrew post-install hook is recorded in formula metadata.
Homebrew bottle metadata is available for 6 platform targets.
Installs with 4 runtime dependencies.
Build metadata lists 2 build dependencies.

Recommended review

Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.

executables

Installed executables

Command	Kind	Exposure
`mksquashfs`	cli	global executable
`sqfscat`	cli	global executable
`sqfstar`	cli	global executable
`unsquashfs`	cli	global executable

freshness

Version and freshness

These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.

page generated2026-07-08

manager version4.7.5

manager updated2026-06-22

local dataok

upstreamcurrent

latest detected4.7.5

https://github.com/plougher/squashfs-tools

okNo freshness warnings were generated.

install metadata

Package metadata

Package key	brew:squashfs
Version	4.7.5
Package manager	Homebrew
Package manager page	https://formulae.brew.sh/formula/squashfs
Homepage	https://github.com/plougher/squashfs-tools
Repository	https://github.com/plougher/squashfs-tools
Upstream docs	https://github.com/plougher/squashfs-tools#readme
License	GPL-2.0-or-later
Source archive	https://github.com/plougher/squashfs-tools/archive/refs/tags/4.7.5.tar.gz
Last updated	2026-06-22T14:06:22-07:00
Pulse	updated
Dependencies	lz4, lzo, xz, zstd
Build dependencies	gnu-sed, help2man
Bottle	available (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux)
Homebrew post-install	not defined
Service	none declared

registry facts

Source database details

Source Database	Homebrew formula API
Tap	homebrew/core
Full Name	squashfs
Version Scheme	0
Revision	0
Head Version	HEAD
Bottle Stable Root URL	https://ghcr.io/v2/homebrew/core
Deprecated	no
Disabled	no
Keg Only	no
URL Keys	head stable

source database matches

Other package-manager records

Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.

zypper95%

squashfs 4.6.1-2.8

A Read-Only File System with Efficient Compression

https://github.com/plougher/squashfs-tools

sudo zypper install squashfs

License: GPL-2.0-or-later
Category: System/Filesystems
Architecture: x86_64
Source Package: squashfs
7 dependencies
1 provides
normalized package name match
Matched by: Squashfs

openSUSE Tumbleweed package metadata · download.opensuse.org · openSUSE Tumbleweed package metadata: squashfs from https://download.opensuse.org/tumbleweed/repo/oss/repodata/be8d3611d25469107f32075a1697e69ec57a2b850b42348a658cc671ad5ec2b50760d02c3e59524d50da9a11d5be799bdaffba2e166e8ca8858512e3c0bd665d-primary.xml.zst

package graph

Links come from deterministic package relationships, av.db category and tag curation, ecosystem matches, and package hub membership.

source trail

Generated from repository data

This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.

Combined YAML source

View the package source record on GitHub.

combined/squashfs.yml

Used sources

Geiger risk classifier
Nucleus package database
av.db category and tag curation
cross-ecosystem install command graph
curated package history
external package-manager database matches
package relationship graph
package version freshness
package-page enrichment

Install squashfs with Homebrew, zypper