W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/trusty/Release Unable to find expected entry 'restricted/source/Sources' in Release file (Wrong sources.list entry or malformed file)
E: Some index files failed to download. They have been ignored, or old ones used instead.
Eu tentei todas as soluções dadas relacionadas a este erro e estou usando o Linux-14.04.2.iso no Oracle VM VirtualBox. Todas as sugestões bem-vindas.