update problem

[amit_samanta]

can anybody solve this??

[ibjsb4]

You mean that GPG error, no_pubkey.

http://www.googlubuntu.com/results/?cx=006238239194895611142%3Au-ocqbntw_o&cof=FORID%3A9&ie=UTF-8&q=gpg+error+no_pubkey&as_qdr=all&sa=Google+Search&lang=en&siteurl=http%3A%2F%2Fwww.googlubuntu.com%2Fresults %2F%3Fcx%3D006238239194895611142%3Au-ocqbntw_o%26q%3Dno%2Bpubkey%26sa%3DSearch%26cof%3D FORID%3A9

[su:bhatta]

+1 to the help you've got!
Please go through the command line resources pages for general help ! : http://ubuntuforums.org/showthread.php?t=2015424

In case your issue is sorted, request you to please mark the thread as solved!