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我刚刚复制了C9工作区与功能的Ruby on Rails应用程序，似乎无法让PostgreSQL服务运行。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
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.
再次删除这个文件手动和运行后：
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。有任何想法吗？
'/ etc/ssl/private/ssl-cert-snakeoil.key'确实存在吗？ – Babar
是的，但我必须进入控制台中的超级用户才能访问它。 @Babar –