Got & ldquo; Не удалось выполнить операцию пакета & rdquo; Ошибка при установке postgresql с помощью программного обеспечения ubuntu

Я пытаюсь установить JDownloader. Но, устанавливая его с помощью sudo apt-get install jdownloader, я получил некоторую ошибку. Например:

j@ubuntu:~$ sudo apt-get install jdownloader
Reading package lists... Done
Building dependency tree       
Reading state information... Done
jdownloader is already the newest version.
The following package was automatically installed and is no longer required:
  acroread-common
Use 'apt-get autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 46 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 (9.1.9-0ubuntu12.04) ...
 * Starting PostgreSQL 9.1 database server                                       * The PostgreSQL server failed to start. Please check the log output:
2013-05-15 18:52:29 GMT FATAL:  data directory "/var/lib/postgresql/9.1/main" has group or world access
2013-05-15 18:52:29 GMT DETAIL:  Permissions should be u=rwx (0700).
                                                                         [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)
j@ubuntu:~$

И, пытаясь sudo apt-get install jdownloader , получилось это.

j@ubuntu:~$ sudo apt-get -f install
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following package was automatically installed and is no longer required:
  acroread-common
Use 'apt-get autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 46 not upgraded.
2 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Setting up postgresql-9.1 (9.1.9-0ubuntu12.04) ...
 * Starting PostgreSQL 9.1 database server                                       * The PostgreSQL server failed to start. Please check the log output:
2013-05-15 18:53:13 GMT FATAL:  data directory "/var/lib/postgresql/9.1/main" has group or world access
2013-05-15 18:53:13 GMT DETAIL:  Permissions should be u=rwx (0700).
                                                                         [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 MaxReports is reached already
                                                              No apport report written because MaxReports is reached already
                                            Errors were encountered while processing:
 postgresql-9.1
 postgresql
E: Sub-process /usr/bin/dpkg returned an error code (1)
j@ubuntu:~$

Я попытался установить его, используя Центр Ubuntu s / w по-прежнему получил следующую ошибку: «Операция с пакетом»:

installArchives() failed: Selecting previously unselected package postgresql.
(Reading database ... 100%
(Reading database ... 368757 files and directories currently installed.)
Unpacking postgresql (from .../postgresql_9.1+129ubuntu1_all.deb) ...
Setting up postgresql-9.1 (9.1.9-0ubuntu12.04) ...
 * Starting PostgreSQL 9.1 database server
 * The PostgreSQL server failed to start. Please check the log output:
2013-05-15 18:45:26 GMT FATAL:  data directory "/var/lib/postgresql/9.1/main" has group or world access
2013-05-15 18:45:26 GMT DETAIL:  Permissions should be u=rwx (0700).
   ...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
Error in function: 
Setting up postgresql-9.1 (9.1.9-0ubuntu12.04) ...
 * Starting PostgreSQL 9.1 database server
 * The PostgreSQL server failed to start. Please check the log output:
2013-05-15 18:45:28 GMT FATAL:  data directory "/var/lib/postgresql/9.1/main" has group or world access
2013-05-15 18:45:28 GMT DETAIL:  Permissions should be u=rwx (0700).
   ...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

любая помощь для этого? спасибо в adv.