btrfs-tools software package provides Checksumming Copy on Write Filesystem utilities, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install btrfs-tools
btrfs-tools is installed in your system.
Make ensure the btrfs-tools package were installed using the commands given below,
$ sudo dpkg-query -l | grep btrfs-tools *
You will get with btrfs-tools package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Administration Utilities |
| Package | btrfs-tools |
| Version | 4.4-1 |
| Description | Checksumming Copy on Write Filesystem utilities |
| Sub Section | admin |