:Target Packages (universe/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:41 and /etc/apt/sources.list:52, W:Target Packages (universe/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:41 and /etc/apt/sources.list:52, W:Target Translations (universe/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:41 and /etc/apt/sources.list:52, W:Target Packages (main/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:39 and /etc/apt/sources.list:52, W:Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:39 and /etc/apt/sources.list:52, W:Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:39 and /etc/apt/sources.list:52, W:Target Packages (multiverse/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:52, W:Target Packages (multiverse/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:52, W:Target Translations (multiverse/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:52, W:Target Packages (restricted/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:39 and /etc/apt/sources.list:52, W:Target Packages (restricted/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:39 and /etc/apt/sources.list:52, W:Target Translations (restricted/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:39 and /etc/apt/sources.list:52, W:The repository 'cdrom://Zorin OS 11 Core 32 bit wily Release' does not have a Release file., W:Data from such a repository can't be authenticated and is therefore potentially dangerous to use., W:See apt-secure(8) manpage for repository creation and user configuration details., W:The repository 'http://ppa.launchpad.net/zorin-os/packages/ubuntu xenial Release' does not have a Release file., W:Data from such a repository can't be authenticated and is therefore potentially dangerous to use., W:See apt-secure(8) manpage for repository creation and user configuration details., E:Failed to fetch cdrom://Zorin OS 11 Core 32 bit/dists/wily/main/binary-i386/Packages Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs, E:Failed to fetch http://ppa.launchpad.net/zorin-os/packages/ubuntu/dists/xenial/main/binary-i386/Packages 404 Not Found, E:Some index files failed to download. They have been ignored, or old ones used instead.