sudo apt-get install mysql-server
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
  libdbd-mysql-perl libmysqlclient18 mysql-client-5.5 mysql-common
  mysql-server-5.5
Suggested packages:
  tinyca
The following NEW packages will be installed:
  libdbd-mysql-perl libmysqlclient18 mysql-client-5.5 mysql-common
  mysql-server mysql-server-5.5
0 upgraded, 6 newly installed, 0 to remove and 71 not upgraded.
Need to get 0 B/4167 kB of archives.
After this operation, 67.1 MB of additional disk space will be used.
Do you want to continue? [Y/n] y
WARNING: The following packages cannot be authenticated!
  mysql-common libmysqlclient18 libdbd-mysql-perl mysql-client-5.5
  mysql-server-5.5 mysql-server
Install these packages without verification? [y/N] y
Preconfiguring packages ...
 Package configuration
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lqqqqqqqqqqqqqqqqqqqqqqConfiguring mysql-server-5.5qqqqqqqqqqqqqqqqqqqqqqqqqk
x While not mandatory, it is highly recommended that you set a password     x
x for the MySQL administrative "root" user.                                 x
x                                                                           x
x If this field is left blank, the password will not be changed.            x
x                                                                           x
x New password for the MySQL "root" user:                                   x
x lqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqk x
x x                                                                       x x
tqmqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqjqu
x                                 <  OK  >                                  x
mqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqj







 Package configuration
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              lqqqqqqqqConfiguring mysql-server-5.5qqqqqqqqqqqk
              x                                               x
              x                                               x
              x Repeat password for the MySQL "root" user:    x
              x lqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqk x
              x x                                           x x
              tqmqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqjqu
              x                   <  OK  >                    x
              mqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqj







Selecting previously unselected package mysql-common.
(Reading database ... 50134 files and directories currently installed.)
Preparing to unpack .../mysql-common_5.5.40-0ubuntu0.14.04.1_all.deb ...
Unpacking mysql-common (5.5.40-0ubuntu0.14.04.1) ...
Selecting previously unselected package libmysqlclient18:amd64.
Preparing to unpack .../libmysqlclient18_5.5.40-0ubuntu0.14.04.1_amd64.deb ...
Unpacking libmysqlclient18:amd64 (5.5.40-0ubuntu0.14.04.1) ...
Selecting previously unselected package libdbd-mysql-perl.
Preparing to unpack .../libdbd-mysql-perl_4.025-1_amd64.deb ...
Unpacking libdbd-mysql-perl (4.025-1) ...
Selecting previously unselected package mysql-client-5.5.
Preparing to unpack .../mysql-client-5.5_5.5.40-0ubuntu0.14.04.1_amd64.deb ...
Unpacking mysql-client-5.5 (5.5.40-0ubuntu0.14.04.1) ...
Processing triggers for man-db (2.6.7.1-1) ...
Setting up mysql-common (5.5.40-0ubuntu0.14.04.1) ...
Selecting previously unselected package mysql-server-5.5.
(Reading database ... 50224 files and directories currently installed.)
Preparing to unpack .../mysql-server-5.5_5.5.40-0ubuntu0.14.04.1_amd64.deb ...
Unpacking mysql-server-5.5 (5.5.40-0ubuntu0.14.04.1) ...
Selecting previously unselected package mysql-server.
Preparing to unpack .../mysql-server_5.5.40-0ubuntu0.14.04.1_all.deb ...
Unpacking mysql-server (5.5.40-0ubuntu0.14.04.1) ...
Processing triggers for man-db (2.6.7.1-1) ...
Setting up libmysqlclient18:amd64 (5.5.40-0ubuntu0.14.04.1) ...
Setting up libdbd-mysql-perl (4.025-1) ...
Setting up mysql-client-5.5 (5.5.40-0ubuntu0.14.04.1) ...
Setting up mysql-server-5.5 (5.5.40-0ubuntu0.14.04.1) ...
141122 19:34:26 [Warning] Using unique option prefix key_buffer instead of key_b                                                                             uffer_size is deprecated and will be removed in a future release. Please use the                                                                              full name instead.
 Package configuration

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lqqqqqqqqqqqqqqqqqqqqqqqConfiguring mysql-server-5.5qqqqqqqqqqqqqqqqqqqqqqqqqk
x Unable to set password for the MySQL "root" user                           x
x                                                                            x
x An error occurred while setting the password for the MySQL                 x
x administrative user. This may have happened because the account already    x
x has a password, or because of a communication problem with the MySQL       x
x server.                                                                    x
x                                                                            x
x You should check the account's password after the package installation.    x
x                                                                            x
x Please read the /usr/share/doc/mysql-server-5.5/README.Debian file for     x
x more information.                                                          x
x                                                                            x
x                                                                            x
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x                                 <  OK  >                                   x
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