Ubuntu安装中的依赖关系错误

Question

我正在试图修复Ubuntu服务器中的一个APT设置，该服务器只有SSH访问权限，不能对依赖关系错误进行处理。

我运行了sudo apt-get install -f，并获得了以下内容：

Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.
4 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Setting up ssl-cert (1.0.23ubuntu2) ...
dpkg: error processing ssl-cert (--configure):
 subprocess installed post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of postgresql-common:
 postgresql-common depends on ssl-cert (>= 1.0.11); however:
  Package ssl-cert is not configured yet.
dpkg: error processing postgresql-common (--configure):
 dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup error from a previous failure.
                                                                                                          dpkg: dependency problems prevent configuration of postgresql-8.4:
 postgresql-8.4 depends on postgresql-common (>= 104~); however:
  Package postgresql-common is not configured yet.
 postgresql-8.4 depends on ssl-cert; however:
  Package ssl-cert is not configured yet.
dpkg: error processing postgresql-8.4 (--configure):
 dependency problems - leaving unconfigured
No apport report written because MaxReports is reached already
                                                              dpkg: dependency problems prevent configuration of postgresql:
 postgresql depends on postgresql-8.4; however:
  Package postgresql-8.4 is not configured yet.
dpkg: error processing postgresql (--configure):
 dependency problems - leaving unconfigured
No apport report written because MaxReports is reached already
                                                              Errors were encountered while processing:
 ssl-cert
 postgresql-common
 postgresql-8.4
 postgresql
E: Sub-process /usr/bin/dpkg returned an error code (1)

这到底是什么意思？有循环依赖关系吗？

我尝试过安装所需的依赖项ssl-cert，但它也不起作用。

我也不能直接使用dpkg。

对于如何解决这个问题，有什么建议吗?或者有人能帮我更好地理解这个问题吗？我是否应该提供更多的信息？

===

编辑：

运行sudo sh -x /path/to/config.postinst configure将产生以下输出：

+ . /usr/share/debconf/confmodule
+ [ !  ]
+ PERL_DL_NONLAZY=1
+ export PERL_DL_NONLAZY
+ [  ]
+ exec /usr/share/debconf/frontend /var/lib/dpkg/info/ssl-cert.postinst configure

这是否意味着脚本无法执行最后一行？

运行sudo /usr/share/debconf/frontend /var/lib/dpkg/info/ssl-cert.postinst configure以静默方式完成，但后续的echo $?将生成1，这表明确实发生了错误。

当我将set -x添加到文件的顶部，然后运行sudo ... frontend ... configure命令时，它将失败：

make-ssl-cert generate-default-snakeoil

对此文件进行set -x处理也会在以下位置失败：

 openssl req -config /tmp/tmp.wPl6nkzKYm -new -x509 -days 3650 -nodes -out /etc/ssl/certs/ssl-cert-snakeoil.pem -keyout /etc/ssl/private/ssl-cert-snakeoil.key

使用sudo运行此命令将提供：

Generating a 1024 bit RSA private key
.....................++++++
.......................++++++
writing new private key to '/etc/ssl/private/ssl-cert-snakeoil.key'
-----
problems making Certificate Request
53829:error:0D07A097:asn1 encoding routines:ASN1_mbstring_ncopy:string too long:a_mbstr.c:154:maxsize=64

我对OpenSSL不熟悉，这是怎么回事？

(另外，我应该把这个问题转到一个新问题上吗？是否超出了这个问题的范围？)

Answer 1

我绕了一会儿，似乎你的“公司名称”对openSSL来说太长了。这是个小虫子。您应该将您的系统升级到精确或稍后才能修复此问题。

删除任何阻塞包并升级您的系统。这应该能解决这个问题。

Answer 2

输出的关键摘录是在为ssl-cert包运行安装后脚本时出现的错误：

设置ssl-cert (1.0.23ubuntu2)dpkg:错误处理ssl-cert (--配置)：子进程安装后安装脚本返回错误退出状态1

所有后续错误都是由于未能完成ssl-cert的安装而造成的。

要找到确切的后脚本是如何失败的，请运行

sudo sh -x /var/lib/dpkg/info/ssl-cert.postinst configure

一旦您设法调试了根本原因，请再次运行sudo apt-get install -f。