could not open version file: /usr/local/var/postgres.old/PG_VERSION

Tue, 29 Jul 2025 10:08:59 +0800

初次使用PostgreSQL发现了一个问题，就是在使用mac中使用brew安装PostgreSQL时，会自动进行版本升级，但是再进行版本升级的时候会遇到如下错误

could not open version file: /usr/local/var/postgres.old/PG_VERSION

经过搜索，这里找到了解决办法如下地址

https://gist.github.com/giannisp/ebaca117ac9e44231421f04e7796d5ca

但是从内容上可以看到版本是从9.6.5到10.0
Upgrade PostgreSQL 9.6.5 to 10.0 using Homebrew (macOS)

本次分享下从9.6.10到10.3
Upgrade PostgreSQL 9.6.10 to 10.3 using Homebrew (macOS)

流程是一样的，但是记录下

need to have both 9.6.x and latest 10.0 installed, and keep 10.0 as default


brew unlink postgresql
brew install [email protected] // 这一步如果已经安装了，则可以跳过
brew unlink [email protected]
brew link postgresql

move 9.6.x db files to another directory


mv /usr/local/var/postgres /usr/local/var/postgres96

init new database using 10.3


initdb /usr/local/var/postgres -E utf8

make timezone and timezonesets directories available for 9.6.x installation


mkdir /usr/local/share/postgresql96
cp -r /usr/local/share/postgresql/timezone /usr/local/share/postgresql96
cp -r /usr/local/share/postgresql/timezonesets /usr/local/share/postgresql96

finally the actual upgrade

-b is the old binary dir, -B is the new binary dir

-d is the old data dir, -D is the new data dir


pg_upgrade -b /usr/local/Cellar/[email protected]/9.6.10/bin -B /usr/local/Cellar/postgresql/10.3/bin -d /usr/local/var/postgres96 -D /usr/local/var/postgres

start 10.3 to check that upgrade works


pg_ctl start -D /usr/local/var/postgres

cleanup if upgrade was successful


brew uninstall [email protected]
rm -rf /usr/local/var/postgres96
rm -rf /usr/local/share/postgresql96

一切OK

Ubuntu 12.04 LTS 安装 postgresql-9.3.1 全过程

Tue, 24 Jun 2025 14:45:57 +0000

我的安装是源码安装，

首先下载postgresql

下载地址：http://www.postgresql.org/download/linux/ubuntu/

我下载的是postgresql-9.3.1这个版本的

下载回来后直接解压

tar -zxvf postgresql-9.3.1.tar.gz
cd postgresql-9.3.1

执行下面指令：

./configure

这里有时候会遇到问题，我这里出现了下面这个错误提示

configure: error: readline library not found
If you have readline already installed, see config.log for details on the
failure. It is possible the compiler isnt looking in the proper directory.
Use –without-readline to disable readline support.

经过我的半天的折腾我终于找到了一个方法。

第一步：更新Ubuntu的源

去这里源列表，这里有更新源的方法，按照操作找到速度最快的源(在这里我选择的是网易163更新服务器)，然后修改source.list