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I'm above mentioned laptop running ubuntu 12.10.When i issue sudo apt-get update it shows

Ign cdrom://Ubuntu 12.04.2 LTS _Precise Pangolin_ - Release amd64 (20130213) precise Release.gpg
Ign cdrom://Ubuntu 12.04.2 LTS _Precise Pangolin_ - Release amd64 (20130213) precise Release
Err cdrom://Ubuntu 12.04.2 LTS _Precise Pangolin_ - Release amd64 (20130213) precise/main 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
Err cdrom://Ubuntu 12.04.2 LTS _Precise Pangolin_ - Release amd64 (20130213) precise/restricted 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
Ign cdrom://Ubuntu 12.04.2 LTS _Precise Pangolin_ - Release amd64 (20130213) precise/main Translation-en_IN
Ign cdrom://Ubuntu 12.04.2 LTS _Precise Pangolin_ - Release amd64 (20130213) precise/main Translation-en
Ign cdrom://Ubuntu 12.04.2 LTS _Precise Pangolin_ - Release amd64 (20130213) precise/restricted Translation-en_IN
Ign cdrom://Ubuntu 12.04.2 LTS _Precise Pangolin_ - Release amd64 (20130213) precise/restricted Translation-en

My machine configuration is intel i5 32 bit machine.Please help me to solve this.

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closed as off-topic by karel, Mateo, bain, Mahesh, Eric Carvalho Jul 6 at 19:19

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1 Answer 1

up vote 0 down vote accepted

open software & update manager
uncheck the CD/DVD updates installation enter image description here

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in my system there is not such option! that particular box is empty –  Thiyagu ATR Jul 5 at 4:46
    
maybe this i.stack.imgur.com/tBPRz.png –  hwez Jul 5 at 4:51
    
yes something like that! it s already unchecked –  Thiyagu ATR Jul 5 at 5:02
    
my first tab is postimg.org/image/68p2462sz second tab is postimg.org/image/qfbeh6uc5 –  Thiyagu ATR Jul 5 at 5:07
    
in the 2nd tap 'Other Software' uncheck cdrom with ubuntu 12.04 'precise pangolin' then update –  hwez Jul 5 at 5:11

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