Estou tentando instalar PostgreSQL em ubuntu 16.10 , estou executando os seguintes comandos:
$ sudo apt-get update
Depois de executar este comando, recebo alguns erros como: E: Failed to fetch http://ams2.mirrors.digitalocean.com/ubuntu/dists/yakkety-backports/universe/binary-all/Packages 404 Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.
Então eu corro:
$ sudo apt-get install postgresql postgresql-contrib
e obtenha:
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package postgresql
E: Unable to locate package postgresql-contrib
Alguma idéia?