PostgreSQL 服务器启动失败，无法创建锁定文件 : permission denied

Question

我正在尝试安装和运行一个 postgreSQL 服务器，每当我安装它时使用

sudo apt-get install postgresql

我收到以下错误:

* Starting PostgreSQL 9.1 database server                                       
* The PostgreSQL server failed to start. Please check the log output:
2014-04-03 17:18:16 PDT FATAL:  could not create lock file     "/var/run/postgresql/.s.PGSQL.5432.lock": Permission denied
                                                                    [fail]
invoke-rc.d: initscript postgresql, action "start" failed.
dpkg: error processing postgresql-common (--configure):
subprocess installed post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of postgresql-9.1:
postgresql-9.1 depends on postgresql-common (>= 115~); however:
Package postgresql-common is not configured yet.

dpkg: error processing postgresql-9.1 (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of postgresql:
 postgresql depends on postgresql-9.1; however:
  Package postgresql-9.1 is not configured yet.

dpkg: error processing postgresql (--configure):
 dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup error from a          previous failure.
Errors were encountered while
 processing:
 postgresql-common
 postgresql-9.1
 postgresql
E: Sub-process /usr/bin/dpkg returned an error code (1)

我猜这是一个权限问题；我该如何解决呢？ 我正在运行 Ubuntu 13.10

Answer 1

更改/var/run/postgresql 的所有者并将其设置为postgres:

sudo chown -R postgres:postgres/var/run/postgresql

如果您运行的用户没有 sudo 权限，则

1. 更改为根:

   su -
   

2. 将 /var/run/postgresql 的所有权更改为用户 postgres 和组 postgres:

   chown -R postgres:postgres /var/run/postgresql
   

我在 Ubuntu 14.04 上安装 postgres 时遇到了同样的问题，更改所有权为我解决了这个问题。