sudo add-apt-repository - command not found (GParted Live CD)

Question

I am trying to burn a DVD using GParted (not a DVD of GParted).

I see that GParted uses a Debian distro (Wheezy). I am trying to install dvd+rw-tools:

sudo apt-get install dvd+rw-tools

Package dvd+rw-tools is not availble, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only availble from another source

Fine. Then I try to add another repository:

sudo apt-add repository ppa:ferramroberto/extra

sudo: add-apt-repository: command not found

Then, I try to install python-software-properties:

sudo apt-get install python-software-properties

And get

Unable to locate package python-software-properties

How can I make this work?

Answer 1

First of all don't use ppa repos for this. The dvd+rw-tools package is available in the main debian repositories. Edit /etc/apt/sources.list and add this line:

deb ftp://ftp.debian.org/debian/ wheezy main contrib non-free

The update the list of available packages:

$ sudo apt-get update

Now you should be able to install dvd+rw-tools:

$ sudo apt-get install dvd+rw-tools

You probably don't even need to do that. If you follow the instructions given in the link you provide in your question and try to install wodim, it should also install all its dependencies. If the correct repository is present everything should work.

Answer 2

Just run:

apt-get install software-properties-common