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博客园 - Terry Sun

Ubuntu安装Java7 SDK Postgres整理 RESTful架构API的设计误区 如何升级Nginx到最新稳定版 The remote name could not be resolved:&#39;maps.googleapis.com&#39; 的解决办法 关于Retrieving the COM class factory for component with CLSID {000209FF-0000-0000-C000-000000000046} failed due to the following error: 80070005的解决办法 [iOS]黑色状态栏 圆角内容区 No connection could be made because the target machine actively refused it 127.0.0.1:808 的解决办法 Google Map V3--geocode与fitBounds方法的同步操作 ADO.NET Entity Framework--不再查询直接更新数据 安装SSL证书-解决导入证书时的ASN1 bad tag value met错误 解决 The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>) - Terry Sun &lt;转&gt;用HTML判断IE版本 关于Master Page的css和js文件引用问题 ASP.NET Mvc 2.0 - 2. 异步Controller执行流程时序图 [转载]ASP.NET 2.0 中的异步页 ASP.NET Mvc 2.0 - 1. Areas的创建与执行 深入分析 ASP.NET Mvc 1.0 – 4. 使用ModelBinder绑定Action的参数 深入分析 ASP.NET Mvc 1.0 – 3. Controller.Execute(Request)-ActionInvoker.InvokeAction()
解决createdb: could not connect to database postgres: FATAL: Peer authentication failed for user &quot;postgres&quot;
Terry Sun · 2012-11-30 · via 博客园 - Terry Sun

操作系统: Ubuntu

运行下面的命令创建名为mydb的数据库

得到一个错误:psql: FATAL: role "terry" does not exist, terry是我的机器名, 在postgresql数据库中没有名为terry的role, 所以会报出这个错误, 只要加上-U参数来指定一个存在的role就可以了,所以我将上面的命令改为:

createdb mydb -U postgres

又得到一个错误:psql: FATAL:  Peer authentication failed for user "postgres", 解决办法如下:

1. 运行下面的命令编辑pg_hba.conf文件

sudo gedit /etc/postgresql/9.1/main/pg_hba.conf

2. 将

# Database administrative login by Unix domain socket
local   all             postgres                                peer

改为

# Database administrative login by Unix domain socket
local   all             postgres                                trust

3. 保存后执行下面的命令重新加载配置文件:

sudo /etc/init.d/postgresql reload

再执行 createdb mydb1 -U postgres , 已经成功的创建了mydb1数据库.