在Ubuntu 17.10上安装postgres 9.3 with postgis失败

Question

我按照这个指南在ubuntu17.10上安装postgres9.3，但在我实际尝试安装的代码行(sudo apt-get install postgresql-9.3 pgadmin3)之后，我得到了以下输出：

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package postgresql-9.3 is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'postgresql-9.3' has no installation candidate

另外，我需要安装postgis，当我输入

 sudo apt-get install postgresql-9.3-postgis-2.1

我得到了同样的错误。有谁可以帮我？

Answer 1

查看postgres wiki，我可以在ubuntu LTS 18上使用他们的快速入门步骤安装postgresql-9.3；如果你愿意，17也应该是一样的。fwiw我倾向于停止奇数安装，但我也不必担心你提到的那个扩展。