Обновление apt-get не работает + Ubuntu 32-bit против 64-bit

Я новичок в платформе Linux. Пожалуйста, не помечайте этот вопрос как дубликат, прежде чем полностью его прочитать.!

Моя система работает на процессоре intel i5, а недавно установленная мной ОС - 64-bit Ubuntu 13.10. Мне пришлось установить набор библиотек, чтобы мой инструмент разработчика Android (ADT) работал правильно. Все началось с linuxizing моей системы и среды разработки!

Это одна из ссылок , на которую я подал в суд на эту цель.

sudo dpkg --add-architecture i386
sudo apt-get update
sudo apt-get install ia32-libs 

Я также использовал подсказки для ускорения Ubuntu 13.10

Но когда я делаю sudo apt-get update, он много раз показывает следующие предупреждающие сообщения.

W: Failed to fetch cdrom://Ubuntu 13.10 _Saucy Salamander_ - Release amd64 (20131016.1)/dists/saucy/main/binary-amd64/Packages  Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs    
W: Failed to fetch cdrom://Ubuntu 13.10 _Saucy Salamander_ - Release amd64 (20131016.1)/dists/saucy/restricted/binary-amd64/Packages  Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs    
W: Failed to fetch cdrom://Ubuntu 13.10 _Saucy Salamander_ - Release amd64 (20131016.1)/dists/saucy/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    
W: Failed to fetch cdrom://Ubuntu 13.10 _Saucy Salamander_ - Release amd64 (20131016.1)/dists/saucy/restricted/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    
W: Failed to fetch cdrom://Ubuntu 13.10 _Saucy Salamander_ - Release amd64 (20131016.1)/dists/saucy/main/binary-i586/Packages  Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs    
W: Failed to fetch cdrom://Ubuntu 13.10 _Saucy Salamander_ - Release amd64 (20131016.1)/dists/saucy/restricted/binary-i586/Packages  Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs    
W: Failed to fetch cdrom://Ubuntu 13.10 _Saucy Salamander_ - Release amd64 (20131016.1)/dists/saucy/main/binary-i686/Packages  Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs    
W: Failed to fetch cdrom://Ubuntu 13.10 _Saucy Salamander_ - Release amd64 (20131016.1)/dists/saucy/restricted/binary-i686/Packages  Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs    
W: Failed to fetch http://dl.google.com/linux/chrome/deb/dists/stable/Release  Unable to find expected entry 'main/binary-i586/Packages' in Release file (Wrong sources.list entry or malformed file)    
W: Failed to fetch http://archive.canonical.com/ubuntu/dists/saucy/Release  Unable to find expected entry 'partner/binary-i586/Packages' in Release file (Wrong sources.list entry or malformed file)    
W: Failed to fetch http://extras.ubuntu.com/ubuntu/dists/saucy/Release  Unable to find expected entry 'main/binary-i586/Packages' in Release file (Wrong sources.list entry or malformed file)    
W: Failed to fetch http://ppa.launchpad.net/appgrid/stable/ubuntu/dists/saucy/Release  Unable to find expected entry 'main/binary-i586/Packages' in Release file (Wrong sources.list entry or malformed file)    
W: Failed to fetch http://ppa.launchpad.net/apt-fast/stable/ubuntu/dists/saucy/Release  Unable to find expected entry 'main/binary-i586/Packages' in Release file (Wrong sources.list entry or malformed file)    
W: Failed to fetch http://ppa.launchpad.net/linrunner/tlp/ubuntu/dists/saucy/Release  Unable to find expected entry 'main/binary-i586/Packages' in Release file (Wrong sources.list entry or malformed file)    
W: Failed to fetch http://ppa.launchpad.net/webupd8team/unstable/ubuntu/dists/saucy/Release  Unable to find expected entry 'main/binary-i586/Packages' in Release file (Wrong sources.list entry or malformed file)    
W: Failed to fetch ftp://ftp.iitb.ac.in/distributions/ubuntu/archives/dists/saucy/Release  Unable to find expected entry 'main/binary-i586/Packages' in Release file (Wrong sources.list entry or malformed file)    
W: Failed to fetch ftp://ftp.iitb.ac.in/distributions/ubuntu/archives/dists/saucy-updates/Release  Unable to find expected entry 'main/binary-i586/Packages' in Release file (Wrong sources.list entry or malformed file)    
W: Failed to fetch ftp://ftp.iitb.ac.in/distributions/ubuntu/archives/dists/saucy-security/Release  Unable to find expected entry 'main/binary-i586/Packages' in Release file (Wrong sources.list entry or malformed file)    
E: Some index files failed to download. They have been ignored, or old ones used instead.

Я пытался решить проблемы, используя различные ответы на этом форуме, который просит отредактировать файл sources.list. Но у меня нет этого содержимого (binary-i686 or binary-i586) в моем файле sources.list.

Кто-нибудь может мне помочь решить эту проблему? Пожалуйста, не забывайте отвечать командами, так как я очень мало знаю о linux terminal commands !!