Because after the install most people will have taken the CD-Rom out of the tray and you receive an error message that it is not available. Maybe Bug is the wrong choice of wording. Perhaps it Could/Would/Should be viewed as a bad default to leave it selected ?
zebedee@i7-ubuntu-budgie:~$ sudo apt update Ign:1 cdrom://Ubuntu-Budgie 19.04 _Disco Dingo_ - Alpha amd64 (20190403) disco InRelease Err:2 cdrom://Ubuntu-Budgie 19.04 _Disco Dingo_ - Alpha amd64 (20190403) disco Release Please use apt-cdrom to allow APT to recognise this CD-ROM. 'apt-get update' cannot be used to add new CD-ROMs Hit:3 http://security.ubuntu.com/ubuntu disco-security InRelease Hit:4 http://gb.archive.ubuntu.com/ubuntu disco InRelease Hit:5 http://gb.archive.ubuntu.com/ubuntu disco-updates InRelease Hit:6 http://gb.archive.ubuntu.com/ubuntu disco-backports InRelease Reading package lists... Done E: The repository 'cdrom://Ubuntu-Budgie 19.04 _Disco Dingo_ - Alpha amd64 (20190403) disco Release' does not have a Release file. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details. zebedee@i7-ubuntu-budgie:~$ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1823135 Title: CD-Rom is ticked in sources To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntubudgie/+bug/1823135/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
