复制C9工作区与Rails应用程序，PostgreSQL服务将无法启动：权限被拒绝

Question

我刚刚使用功能正常的Ruby on Rails应用程序复制了一个C9工作区，似乎无法运行PostgreSQL服务。

运行此命令：

sudo service postgresql start

返回此错误：

The PostgreSQL server failed to start. Please check the log output:
2017-08-15 06:50:57 UTC FATAL:  could not remove old lock file "postmaster.pid": Permission denied
2017-08-15 06:50:57 UTC HINT:  The file seems accidentally left over, but it could not be removed. Please remove the file by hand and try again.

删除此文件手册并再次运行后

：

The PostgreSQL server failed to start. Please check the log output:
2017-08-15 07:01:45 UTC FATAL:  could not access private key file "/etc/ssl/private/ssl-cert-snakeoil.key": Permission denied

我猜我需要设置一些权限访问PostgreSQL，但我不知道该怎么做。有什么想法吗？

Answer 1

通过运行此命令修复它：

gpasswd -a postgres ssl-cert

然后启动了postgresql服务器，它运行得很好！