我正在用 Ruby和Postgres建立一个VPS.在我的本地机器上,我安装了postgresql 9.2.3(客户端和服务器),因此想在我的VPS上安装它.按照这篇博文的说明 http://hendrelouw73.wordpress.com/2012/11/14/how-to-install-postgresql-9-1-on-ubuntu-12-10-linux/for在ubuntu上安装postgres(唯一不同的是我试图安装9.2.3.他安装了9.1),我做了以下

sudo apt-get install postgresql-9.2.3
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package postgresql-9.2.3
E: Couldn't find any package by regex 'postgresql-9.2.3'

但是,正如您所看到的,它找不到包postgresql-9.2.3.然而,我在我的本地机器上安装了该软件包(我在Mac上安装了Homebrew).

你能帮我理解我做错了什么吗？

更新
我也尝试安装它,在最后留下’3′,就像你在下面看到的那样,但它没有工作,你可以看到.

sudo apt-get install postgresql-9.2
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package postgresql-9.2 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-9.2' has no installation candidate

更新

Ign http://security.ubuntu.com quantal-security InRelease
Ign http://archive.ubuntu.com quantal InRelease
Hit http://security.ubuntu.com quantal-security Release.gpg
Ign http://archive.ubuntu.com quantal-updates InRelease
Hit http://security.ubuntu.com quantal-security Release
Hit http://archive.ubuntu.com quantal Release.gpg
Get:1 http://archive.ubuntu.com quantal-updates Release.gpg [933 B]
Hit http://security.ubuntu.com quantal-security/main i386 Packages
Hit http://archive.ubuntu.com quantal Release
Get:2 http://archive.ubuntu.com quantal-updates Release [49.6 kB]
Hit http://security.ubuntu.com quantal-security/main Translation-en
Hit http://archive.ubuntu.com quantal/main i386 Packages 
Hit http://archive.ubuntu.com quantal/universe i386 Packages
Ign http://security.ubuntu.com quantal-security/main Translation-en_US
Hit http://archive.ubuntu.com quantal/main Translation-en
Hit http://archive.ubuntu.com quantal/universe Translation-en
Get:3 http://archive.ubuntu.com quantal-updates/main i386 Packages [259 kB]
Get:4 http://archive.ubuntu.com quantal-updates/universe i386 Packages [192 kB]
Hit http://archive.ubuntu.com quantal-updates/main Translation-en
Hit http://archive.ubuntu.com quantal-updates/universe Translation-en
Ign http://archive.ubuntu.com quantal/main Translation-en_US
Ign http://archive.ubuntu.com quantal/universe Translation-en_US
Ign http://archive.ubuntu.com quantal-updates/main Translation-en_US
Ign http://archive.ubuntu.com quantal-updates/universe Translation-en_US
Fetched 501 kB in 3s (148 kB/s)
Reading package lists... Done
postgresql-9.1 - object-relational sql database,version 9.1 server
postgresql-9.1-dbg - debug symbols for postgresql-9.1
postgresql-9.1-debversion - Debian version number type for Postgresql
postgresql-9.1-ip4r - IPv4 and IPv4 range index types for Postgresql 9.1
postgresql-9.1-orafce - Oracle support functions for Postgresql 9.1
postgresql-9.1-pgfincore - set of Postgresql functions to manage blocks in memory
postgresql-9.1-pgmemcache - Postgresql interface to memcached
postgresql-9.1-pgmp - arbitrary precision integers and rationals for Postgresql 9.1
postgresql-9.1-pgpool2 - connection pool server and replication proxy for Postgresql - modules
postgresql-9.1-pljava-gcj - Java procedural language for Postgresql 9.1
postgresql-9.1-pllua - Lua procedural language for Postgresql 9.1
postgresql-9.1-plproxy - database partitioning system for Postgresql 9.1
postgresql-9.1-plr - Procedural language interface between Postgresql and R
postgresql-9.1-plsh - PL/sh procedural language for Postgresql 9.1
postgresql-9.1-postgis - Geographic objects support for Postgresql 9.1
postgresql-9.1-prefix - Prefix Range module for Postgresql
postgresql-9.1-preprepare - Pre Prepare your Statement server side
postgresql-9.1-slony1-2 - replication system for Postgresql: Postgresql 9.1 server plug-in