ошибка сбоя при сбое пакетов при использовании установщика графики Intel

Я пробовал все, но эта ошибка постоянно повторялась в графическом инсталляторе Intel для Linux

при обновлении кеша пакета. error:

W:GPG error: https://download.01.org saucy InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A902DDA375E52366, W:Failed to fetch cdrom://Lubuntu 13.10 _Saucy Salamander_ - Release i386 (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://Lubuntu 13.10 _Saucy Salamander_ - Release i386 (20131016.1)/dists/saucy/multiverse/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://Lubuntu 13.10 _Saucy Salamander_ - Release i386 (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://Lubuntu 13.10 _Saucy Salamander_ - Release i386 (20131016.1)/dists/saucy/universe/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:Some index files failed to download. They have been ignored, or old ones used instead.

Я использую Lubuntu 13.10. Как я могу это исправить?