SquashFS: Difference between revisions
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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. | 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 | 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. | ||
== See also == | == See also == | ||
Revision as of 17:23, 1 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.