How To Install MKVToolNix 21.0.0 on Ubuntu 16.04 / CentOS 7.x / Fedora 27

In this tutorial i will show you how to install the latest version of MKVToolNix 21.0.0 in Ubuntu 16.04 and higher versions , CentOS and Fedora

MKVToolNix recently released a new version 21.0.0 and users are recommended to upgrade to this version , because of bug-fixes and new features added to this release.

MKVToolNix is an open source software to create, alter and inspect Matroska files. MKVToolNix is available to end users as graphical and command line

It is a cross platform tool and it is available on most commonly used Linux, MacOSX and windows, and it supports a large number of audio and subtitle formats recently they have released a stable version 21.0.0 on FEB 24, 2017

Audio and subtitle supported formats

H.264/AVC, RealVideo, Theora, VP8/VP9, MP2, MP3, AC3, raw PCM, AAC, OGG Vorbis, TrueAudio, ALAC, FLAC, WavPack, Opus, SSA, ASS, Kate, VobSub, and USF.

Changelog in this version 21.0.0

• mkvmerge: track statistics tags: the `TagDefault` element will not be written anymore as it was always set to the default value `1`anyway.
• mkvmerge, MKVToolNix GUI: JSON files can now contain C++-style line comments outside of strings (e.g. something like this: `// this is ignored`). Such comments, even though not part of the official JSON specifications, are now ignored when reading JSON files.
• MKVToolNix GUI: chapter editor: opening a Matroska file without chapters in it will now open the file in an empty chapter editor instead of showing an error message.
• MKVToolNix GUI: an "info" tool has been added, replacing the functionality of mkvinfo's GUI. The functionality is not on par yet but will be for release v22.

Installation steps

For Ubuntu

Step 1 : Add the MKVToolNix public key

wget -q -O - https://mkvtoolnix.download/gpg-pub-moritzbunkus.txt | sudo apt-key add -

Step 2 : Add the repo

sudo sh -c 'echo "deb http://mkvtoolnix.download/ubuntu/$(lsb_release -sc)/ ./" >> /etc/apt/sources.list.d/bunkus.org.list'

Step 3 : Update the repos

sudo apt-get update

Step 4 : Install MKVToolNix 21.0.0

sudo apt-get install mkvtoolnix mkvtoolnix-gui

For CentOS / Redhat 7.X

Enable the EPEL repo and add the MKVToolNIX Rpm

sudo rpm -Uhv https://mkvtoolnix.download/centos/bunkus-org-repo-2-3.noarch.rpm && sudo yum install mkvtoolnix

For Fedora 26-27

Add the RPM to your base machine and install it

sudo rpm -Uhv https://mkvtoolnix.download/fedora/bunkus-org-repo-2-3.noarch.rpm && sudo dnf install mkvtoolnix