每次我尝试安装软件包时，APT都会尝试配置PostgreSQL

Question

我最近遇到了一些奇怪的错误，每当我想要安装任何东西。这里有一个安装fluidsynth的例子。

$ sudo apt-get install libfluidsynth1
Reading package lists... Done
Building dependency tree       
Reading state information... Done
libfluidsynth1 is already the newest version.
libfluidsynth1 set to manually installed.
0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.
2 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue [Y/n]? y
Setting up postgresql-9.1 (9.1.10-0ubuntu12.04) ...
 * Starting PostgreSQL 9.1 database server                                                                                                                     * The PostgreSQL server failed to start. Please check the log output:
2013-11-03 14:21:42 EST FATAL:  could not access private key file "server.key": No such file or directory
                                                                                                                                                       [fail]
invoke-rc.d: initscript postgresql, action "start" failed.
dpkg: error processing postgresql-9.1 (--configure):
 subprocess installed post-installation script returned error exit status 1
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-9.1
 postgresql
E: Sub-process /usr/bin/dpkg returned an error code (1)

我要跑12.04。是什么导致了这件事，我该怎么处理呢？这种情况发生在安装很多东西上，似乎意味着我需要初始化postgresql或什么的。我不记得和postgres玩过花招，所以我不知道为什么这会突然变成问题。

Answer 1

删除/清除postgresql-9.1并重新安装它们：

sudo apt-get --purge autoremove postgresql-9.1 postgresql

如果您真的使用postgresql，或者其他包依赖于它，您可以再次安装它。

sudo apt-get install postgresql the-other-program-that-got-removed

顺便说一下，libfluidsynth1已经安装好了，您不需要再安装它了。

Answer 2

还有一个更简单的解决方案: Postgresql需要存在"snakeoil“证书才能运行:/etc/ssl/私有/ssl-cert-snakeoil。如果从系统中删除了该证书，则可以用以下方式生成一个新证书

# make-ssl-cert generate-default-snakeoil