Embedded Files
To install firmware and non-free software, you need to update your apt source list to include contrib and non-free sources lists.
Edit with Sudo / Root Account
Edit with Sudo / Root Account
You need to use your sudo or root account to edit the source list using your favorite editor. For me, I with vim (the vi):
sudo account:
$ sudo vi /etc/apt/source.listroot account:
$ su$ type in your password:$ vi /etc/apt/source.list Add Contrib and Non-Free tags
Add Contrib and Non-Free tags
You should see something like (the link may changed depending on your installation):
deb http://deb.debian.org/debian stretch maindeb-src http://deb.debian.org/debian stretch maindeb http://deb.debian.org/debian-security/ stretch/updates maindeb-src http://deb.debian.org/debian-security/ stretch/updates maindeb http://deb.debian.org/debian stretch-updates maindeb-src http://deb.debian.org/debian stretch-updates mainAdd the tags, so it looks something like this:
deb http://deb.debian.org/debian stretch main contrib non-freedeb-src http://deb.debian.org/debian stretch main contrib non-freedeb http://deb.debian.org/debian-security/ stretch/updates main contrib non-freedeb-src http://deb.debian.org/debian-security/ stretch/updates main contrib non-freedeb http://deb.debian.org/debian stretch-updates main contrib non-freedeb-src http://deb.debian.org/debian stretch-updates main contrib non-freeAdd Backport Entries
Add Backport Entries
Now that you have non-free and contrib sources, it's time to add backport. By now, your source.list should look something like this:
deb http://deb.debian.org/debian stretch main contrib non-freedeb-src http://deb.debian.org/debian stretch main contrib non-freedeb http://deb.debian.org/debian-security/ stretch/updates main contrib non-freedeb-src http://deb.debian.org/debian-security/ stretch/updates main contrib non-freedeb http://deb.debian.org/debian stretch-updates main contrib non-freedeb-src http://deb.debian.org/debian stretch-updates main contrib non-freeDuplicate the main sources and the replace the "stretch" with "stretch-backports" to link them:
deb http://deb.debian.org/debian stretch main contrib non-freedeb-src http://deb.debian.org/debian stretch main contrib non-freedeb http://deb.debian.org/debian stretch-backports main contrib non-freedeb-src http://deb.debian.org/debian stretch-backports main contrib non-freedeb http://deb.debian.org/debian-security/ stretch/updates main contrib non-freedeb-src http://deb.debian.org/debian-security/ stretch/updates main contrib non-freedeb http://deb.debian.org/debian stretch-updates main contrib non-freedeb-src http://deb.debian.org/debian stretch-updates main contrib non-freeSave the file.
Update and Upgrade Again
Update and Upgrade Again
With the new list available, perform another update again:
$ sudo apt update -y && sudo apt upgrade -yYou're done setting up all the sources lists. You can now install non-free packages like firmware and semi-free software inside contrib listing.
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