How To Install zerofree on CentOS 7
Introduction
In this tutorial we learn how to install zerofree on CentOS 7.
What is zerofree
zerofree is a utility to set unused filesystem inodes and blocks of an ext2/3/4 filesystem to zero. This can improve the compressibility and privacy of an ext2/3/4 filesystem. This tool was inspired by the ext2fs privacy (i.e. secure deletion) patch described in a Linux kernel mailing list thread. WARNING mounted read-only. The tool tries to check this before running, but you should be careful.
We can use yum or dnf to install zerofree on CentOS 7. In this tutorial we discuss both methods but you only need to choose one of method to install zerofree.
Install zerofree on CentOS 7 Using yum
Update yum database with yum using the following command.
sudo yum makecache
After updating yum database, We can install zerofree using yum by running the following command:
sudo yum -y install zerofree
Install zerofree on CentOS 7 Using dnf
If you don’t have dnf installed you can install DNF on CentOS 7 first.
Update yum database with dnf using the following command.
sudo dnf makecache
After updating yum database, We can install zerofree using dnf by running the following command:
sudo dnf -y install zerofree
How To Uninstall zerofree on CentOS 7
To uninstall only the zerofree package we can use the following command:
sudo dnf remove zerofree
References
Summary
In this tutorial we learn how to install zerofree on CentOS 7 using yum and dnf.