Setting up mysql-server-5.5 (5.5.43-0ubuntu0.14.04.1) ... debconf: unable to initialize frontend: Dialog debconf: (No usable dialog-like program is installed, so the dialog based frontend cannot be used. at /usr/share/perl5/Debconf/FrontEnd/Dialog.pm line 76.) debconf: falling back to frontend: Readline 150516 0:31:34 [Warning] Using unique option prefix key_buffer instead of key_buffer_size is deprecated and will be removed in a future release. Please use the full name instead. 150516 0:31:34 [Note] /usr/sbin/mysqld (mysqld 5.5.43-0ubuntu0.14.04.1) starting as process 806 ... Configuring mysql-server-5.5 ----------------------------
Unable to set password for the MySQL "root" user
An error occurred while setting the password for the MySQL administrative user. This may have happened because the account already has a password, or because of a communication problem with the MySQL server.
You should check the account's password after the package installation.
Please read the /usr/share/doc/mysql-server-5.5/README.Debian file for more information.
start: Job failed to start invoke-rc.d: initscript mysql, action "start" failed. dpkg: error processing package mysql-server-5.5 (--configure): subprocess installed post-installation script returned error exit status 1 Setting up libhtml-template-perl (2.95-1) ... dpkg: dependency problems prevent configuration of mysql-server: mysql-server depends on mysql-server-5.5; however: Package mysql-server-5.5 is not configured yet.
dpkg: error processing package mysql-server (--configure): dependency problems - leaving unconfigured Processing triggers for libc-bin (2.19-0ubuntu6.6) ... Errors were encountered while processing: mysql-server-5.5 mysql-server E: Sub-process /usr/bin/dpkg returned an error code (1) root@localhost:~#