when i marked all check boxes in settings,update fails.
        Posted  
        
            by 
                user67966
            
        on Ask Ubuntu
        
        See other posts from Ask Ubuntu
        
            or by user67966
        
        
        
        Published on 2012-06-08T15:08:30Z
        Indexed on 
            2012/06/08
            16:49 UTC
        
        
        Read the original article
        Hit count: 331
        
"W:Failed to fetch cdrom://Ubuntu 12.04 LTS Precise Pangolin - Release i386 (20120423)/dists/precise/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 12.04 LTS Precise Pangolin - Release i386 (20120423)/dists/precise/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 , E:Some index files failed to download. They have been ignored, or old ones used instead."
the above information is a crash info.It happens when i manually update ubuntu.I have marked all check-boxes in settings which was by default not marked. What is the main reason for this problem?
© Ask Ubuntu or respective owner