1. #
2.  
3. # deb cdrom:[Debian GNU/Linux 10.8.0 _Buster_ - Official amd64 NETINST 20210206-10:34]/ buster main
4.  
5. # deb cdrom:[Debian GNU/Linux 10.8.0 _Buster_ - Official amd64 NETINST 20210206-10:34]/ buster main
6.  
7. deb http://deb.debian.org/debian/ buster main non-free
8. deb-src http://deb.debian.org/debian/ buster main contrib non-free
9.  
10.  
11. deb http://security.debian.org/debian-security buster/updates main non-free
12. deb-src http://security.debian.org/debian-security buster/updates main non-free
13.  
14. # buster-updates, previously known as 'volatile'
15. deb http://deb.debian.org/debian/ buster-updates main non-free
16. deb-src http://deb.debian.org/debian/ buster-updates main non-free
17.  
18.  
19.  
20. # This system was installed using small removable media
21. # (e.g. netinst, live or single CD). The matching "deb cdrom"
22. # entries were disabled at the end of the installation process.
23. # For information about how to configure apt package sources,
24. # see the sources.list(5) manual.
25.