zerofree

Zero non-allocated regions in ext2/ext3/ext4 file systems

Zerofree finds the unallocated blocks with non-zero value content in an ext2, ext3, or ext4 file system and fills them with zeroes (or another value). This is a simple way to make disk images more compressible. Zerofree requires the file system to be unmounted or mounted read-only.

Versions: 1.1.1
Website: https://frippery.org/uml/
Licenses: GPL 2
Package source: gnu/packages/linux.scm
Builds: See build status
Issues: See known issues

Installation

Install the latest version of zerofree as follows:

guix install zerofree

Or install a particular version:

guix install zerofree@1.1.1

You can also install packages in augmented, pure or containerized environments for development or simply to try them out without polluting your user profile. See the guix shell documentation for more information.