Upgrading Ubuntu to 15.04 from Kubuntu 14.10

[Daniel Flores/Arquivologia/UFSM]

W:Falhou ao buscar http://extras.ubuntu.com/ubuntu/dists/vivid/main/source/Sources 404 Not Found
, W:Falhou ao buscar http://extras.ubuntu.com/ubuntu/dists/vivid/main/binary-amd64/Packages 404 Not Found
, W:Falhou ao buscar http://extras.ubuntu.com/ubuntu/dists/vivid/main/binary-i386/Packages 404 Not Found
, E:Falhou o download de alguns ficheiros de índice. Foram ignorados ou os antigos foram usados em seu lugar.

[Daniel Flores/Arquivologia/UFSM (dfloresbr)]

After CMD:
kubuntu-devel-release-upgrade

Error:
W:Falhou ao buscar http://extras.ubuntu.com/ubuntu/dists/vivid/main/source/Sources 404 Not Found
, W:Falhou ao buscar http://extras.ubuntu.com/ubuntu/dists/vivid/main/binary-amd64/Packages 404 Not Found
, W:Falhou ao buscar http://extras.ubuntu.com/ubuntu/dists/vivid/main/binary-i386/Packages 404 Not Found
, E:Falhou o download de alguns ficheiros de índice. Foram ignorados ou os antigos foram usados em seu lugar.

[Seth Arnold (seth-arnold)]

Thanks for taking the time to report this bug and helping to make Ubuntu better. We appreciate the difficulties you are facing, but this appears to be a "regular" (non-security) bug. I have unmarked it as a security issue since this bug does not show evidence of allowing attackers to cross privilege boundaries nor directly cause loss of data/privacy. Please feel free to report any other bugs you may find.