When you install Debian 10 using a DVD, the Debian OS installer sets the DVD as a source for getting packages for your system if you didn’t choose to scan for network mirrors. We need to update sources.list file in order to get packages from the internet.
The /etc/apt/sources.list file with DVD as a source would look something like below.
# # deb cdrom:[Debian GNU/Linux 10.6.0 _Buster_ - Official amd64 DVD Binary-1 20200926-10:17]/ buster contrib main deb cdrom:[Debian GNU/Linux 10.6.0 _Buster_ - Official amd64 DVD Binary-1 20200926-10:17]/ buster contrib main deb http://security.debian.org/debian-security buster/updates main contrib deb-src http://security.debian.org/debian-security buster/updates main contrib # buster-updates, previously known as 'volatile' # A network mirror was not selected during install. The following entries # are provided as examples, but you should amend them as appropriate # for your mirror of choice. # # deb http://deb.debian.org/debian/ buster-updates main contrib # deb-src http://deb.debian.org/debian/ buster-updates main contrib
The system would ask you to insert a DVD when installing some packages on your system if the disc is not present in the DVD driver.
Media change: please insert the disc labeled 'Debian GNU/Linux 10.6.0 _Buster_ - Official amd64 DVD Binary-1 20200926-10:17' in the drive '/media/cdrom/' and press [Enter]
Debian 10: Official sources.list
To set up a Debian 10 official repository on your system, add/update /etc/apt/sources.list file with the below details.
deb http://deb.debian.org/debian buster main deb-src http://deb.debian.org/debian buster main deb http://deb.debian.org/debian-security/ buster/updates main deb-src http://deb.debian.org/debian-security/ buster/updates main deb http://deb.debian.org/debian buster-updates main deb-src http://deb.debian.org/debian buster-updates main
Debian 10: Contrib & Non-Free
If you want to get contrib and non-free components for your system, use the below one.
deb http://deb.debian.org/debian buster main contrib non-free deb-src http://deb.debian.org/debian buster main contrib non-free deb http://deb.debian.org/debian-security/ buster/updates main contrib non-free deb-src http://deb.debian.org/debian-security/ buster/updates main contrib non-free deb http://deb.debian.org/debian buster-updates main contrib non-free deb-src http://deb.debian.org/debian buster-updates main contrib non-free
Debian 10: Backports
In case you want to add Backports, update the sources.list with the below information.
deb http://deb.debian.org/debian buster-backports main contrib non-free deb-src http://deb.debian.org/debian buster-backports main contrib non-free
Update
Once you have added the required repositories, update the index.
sudo apt update
Conclusion
That’s All. I hope this post helped you add the required repositories on your Debian 10 system.
