在ubuntu12.04安装MYSQL5.6时出现如下错误：
root@AY140613112456566f43Z:~# apt-get -f install mysql-server-5.6
Reading package lists... Done
Building dependency tree
Reading state information... Done
mysql-server-5.6 is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 6 not upgraded.
1 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
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = "en_US:en",
LC_ALL = (unset),
LC_TIME = "zh_CN.UTF-8",
LC_MONETARY = "zh_CN.UTF-8",
LC_ADDRESS = "zh_CN.UTF-8",
LC_TELEPHONE = "zh_CN.UTF-8",
LC_NAME = "zh_CN.UTF-8",
LC_MEASUREMENT = "zh_CN.UTF-8",
LC_IDENTIFICATION = "zh_CN.UTF-8",
LC_NUMERIC = "zh_CN.UTF-8",
LC_PAPER = "zh_CN.UTF-8",
LANG = "en_US.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
locale: Cannot set LC_ALL to default locale: No such file or directory
Setting up mysql-server-5.6 (5.6.19+dfsg-1+deb.sury.org~precise+1) ...
locale: Cannot set LC_ALL to default locale: No such file or directory
* Stopping MySQL database server mysqld [ OK ]
* Starting MySQL database server mysqld [fail]
invoke-rc.d: initscript mysql, action "start" failed.
dpkg: error processing mysql-server-5.6 (--configure):
subprocess installed post-installation script returned error exit status 1
E: Sub-process /usr/bin/dpkg returned an error code (1)

这个该怎么解决？