I just upgraded my ubuntu from 22.04 to 24.04. I want to know how to enable 3rd party mirrors and repositories but my /etc/apt/sources.list is a little different; this is how it is:
$ /etc/apt/sources.list.d$ ls -l
total 16
-rw-r--r-- 1 root root 141 Apr 28 23:54 brave-browser-release.list.distUpgrade
-rw-r--r-- 1 root root 112 Apr 28 23:54 docker.list.distUpgrade
-rw-r--r-- 1 root root 144 Apr 28 23:54 third-party.sources
-rw-r--r-- 1 root root 385 Apr 28 23:54 ubuntu.sources
I checked brave-browser, and this is what I got:
$ cat brave-browser-release.list.distUpgrade
deb [signed-by=/usr/share/keyrings/brave-browser-archive-keyring.gpg arch=amd64] https://brave-browser-apt-release.s3.brave.com/ stable main
I checked docker and this is what I got:
$ cat docker.list.distUpgrade
deb [arch=amd64 signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu jammy stable
I checked third-party.sources and this is what I got:
$ cat third-party.sources
Enabled: no
Types: deb
URIs: cdrom:[Ubuntu 22.04.2 LTS Jammy Jellyfish - Release amd64 (20230223)]/
Suites: jammy
Components: main restricted
I also checked ubuntu.sources and this is what I got:
$ cat ubuntu.sources
Types: deb
URIs: http://zm.archive.ubuntu.com/ubuntu/
Suites: noble noble-updates noble-backports
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg
Types: deb
URIs: http://security.ubuntu.com/ubuntu
Suites: noble-security
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg
Docker, brave and the main repositories and security repositories (ubuntu.sources) are okay as you can see above, but how do I deal with the third-party.sources and why is my /etc/apt/sources.list like this?