New linux user and unable to upgrade from ubuntu 10.10 to 11.04 in Dell Desktop Vostro 260, i receive this messge: Authentication failed Authenticating the upgrade failed. There may be a problem with the network or with the server.
hi Falko yep net connection was Ok and the problem solved , upgrade 10.10 to 11.04 and to 11.10 done with shoots in the dark. Thank you for your reply
