Не могу установить MySQL на мою Ubuntu 12.04

У меня были проблемы с установкой сервера MySQL на моем ноутбуке. И теперь, если я пытаюсь установить что-то новое, выдается сообщение об ошибке. Я перепробовал большинство сайтов, но не смог найти решение своей проблемы.

Когда я запускаю sudo apt-get install -f, я получаю следующее сообщение:

 sudo apt-get -f install
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Correcting dependencies... Done
The following extra packages will be installed:
  mysql-server-5.5
Suggested packages:
  tinyca mailx
The following NEW packages will be installed:
  mysql-server-5.5
0 upgraded, 1 newly installed, 0 to remove and 497 not upgraded.
1 not fully installed or removed.
Need to get 0 B/8,719 kB of archives.
After this operation, 31.3 MB of additional disk space will be used.
Do you want to continue [Y/n]? y
Preconfiguring packages ...
(Reading database ... 152696 files and directories currently installed.)
Unpacking mysql-server-5.5 (from .../mysql-server-5.5_5.5.32-0ubuntu0.12.04.1_i386.deb) ...
groupadd: cannot lock /etc/group; try again later.
addgroup: `/usr/sbin/groupadd -g 139 mysql' returned error code 10. Exiting.
dpkg: error processing /var/cache/apt/archives/mysql-server-5.5_5.5.32-0ubuntu0.12.04.1_i386.deb (--unpack):
 subprocess new pre-installation script returned error exit status 1
No apport report written because MaxReports is reached already
                                                              Errors were encountered while processing:
 /var/cache/apt/archives/mysql-server-5.5_5.5.32-0ubuntu0.12.04.1_i386.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)