[Ilugc.tamil] Ubuntu 10.10 Upgrade Issue

[siraj]

  Dear Friends

when i run the update manager,  The following message appeared,

My Ubuntu is update from 10.04 to  10.10 ?

if not

How can I solve this is issue.... please guide me ...

Thanks


Siraj
Qatar



> GPG error: http://ppa.launchpad.net lucid Release: The following 
> signatures couldn't be verified because the public key is not 
> available: NO_PUBKEY 9887DCE9C98A6E19GPG error: 
> http://ppa.launchpad.net lucid Release: The following signatures 
> couldn't be verified because the public key is not available: 
> NO_PUBKEY A1468CF6A75E6C2AGPG error: http://ppa.launchpad.net lucid 
> Release: The following signatures couldn't be verified because the 
> public key is not available: NO_PUBKEY 15A579BF113659DFGPG error: 
> http://ppa.launchpad.net lucid Release: The following signatures 
> couldn't be verified because the public key is not available: 
> NO_PUBKEY 79114BDCE21DD54DGPG error: http://ppa.launchpad.net lucid 
> Release: The following signatures couldn't be verified because the 
> public key is not available: NO_PUBKEY 9240AA86D4D4F91FFailed to fetch 
> cdrom://Ubuntu 10.04 LTS _Lucid Lynx_ - Release i386 
> (20100429)/dists/lucid/main/binary-i386/Packages.gz  Please use 
> apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot 
> be used to add new CD-ROMs
> Failed to fetch cdrom://Ubuntu 10.04 LTS _Lucid Lynx_ - Release i386 
> (20100429)/dists/lucid/restricted/binary-i386/Packages.gz  Please use 
> apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot 
> be used to add new CD-ROMs
> Failed to fetch 
> http://ppa.launchpad.net/c-korn/vlc/ubuntu/dists/lucid/main/binary-i386/Packages.gz  
> 404  Not Found
> Failed to fetch 
> http://ppa.launchpad.net/wrinklez/ppasearch/ubuntu/dists/lucid/main/binary-i386/Packages.gz  
> 404  Not Found
> Some index files failed to download, they have been ignored, or old 
> ones used instead.













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