SquashFS: Difference between revisions
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== See also == | == See also == | ||
* [[How to make a custom ISO image with mkimage]] | |||
* [https://github.com/plougher/squashfs-tools squashfs-tools repository] | * [https://github.com/plougher/squashfs-tools squashfs-tools repository] | ||
* [https://wiki.gentoo.org/wiki/SquashFS Gentoo wiki] | * [https://wiki.gentoo.org/wiki/SquashFS Gentoo wiki] | ||
[[Category:Filesystems]] | [[Category:Filesystems]] | ||
Latest revision as of 05:01, 2 April 2025
Squashfs is a compressed read-only file system for Linux. Squashfs compresses files, inodes and directories, and supports block sizes from 4 KiB up to 1 MiB for greater compression. Several compression algorithms are supported.
The Live CD versions of various Linux distributions mount SquashFS as the root filesystem and mostly use OverlayFS to provide a writable layer over SquashFS.
In Alpine Linux, the modloop file is a squashfs image. The modloop contains kernel modules and essential firmware files. During bootup, the modloop gets mounted in read only mode as a loop device at /.modloop.