I set lower_case_table_names = 2 in /etc/my.cnf file. I also updated this variable in /etc/mysql/my.cnf file. After setting the variable I restarted mysql server, but still the value is 0, when I use SHOW VARIABLES.

I'm using MySQL 5.5. Any Ideas what else needs to be done?

UPDATE

my.cnf content:-

#

# The MySQL database server configuration file.

#

# You can copy this to one of:

# - "/etc/mysql/my.cnf" to set global options,

# - "~/.my.cnf" to set user-specific options.

# 

# One can use all long options that the program supports.

# Run program with --help to get a list of available options and with

# --print-defaults to see which it would actually understand and use.

#

# For explanations see

# http://dev.mysql.com/doc/mysql/en/server-system-variables.html



# This will be passed to all mysql clients

# It has been reported that passwords should be enclosed with ticks/quotes

# escpecially if they contain "#" chars...

# Remember to edit /etc/mysql/debian.cnf when changing the socket location.

[client]

port        = 3306

socket      = /var/run/mysqld/mysqld.sock



# Here is entries for some specific programs

# The following values assume you have at least 32M ram



# This was formally known as [safe_mysqld]. Both versions are currently parsed.

[mysqld_safe]

socket      = /var/run/mysqld/mysqld.sock

nice        = 0



[mysqld]

#

# * Basic Settings

#

lower_case_table_names = 2

user        = mysql

pid-file    = /var/run/mysqld/mysqld.pid

socket      = /var/run/mysqld/mysqld.sock

port        = 3306

basedir     = /usr

datadir     = /var/lib/mysql

tmpdir      = /tmp

lc-messages-dir = /usr/share/mysql

skip-external-locking



#

# Instead of skip-networking the default is now to listen only on

# localhost which is more compatible and is not less secure.

bind-address        = 127.0.0.1

#

# * Fine Tuning

#

key_buffer      = 16M

max_allowed_packet  = 16M

thread_stack        = 192K

thread_cache_size       = 8

# This replaces the startup script and checks MyISAM tables if needed

# the first time they are touched

myisam-recover         = BACKUP

#max_connections        = 100

#table_cache            = 64

#thread_concurrency     = 10

#

# * Query Cache Configuration

#

query_cache_limit   = 1M

query_cache_size        = 16M

#

# * Logging and Replication

#

# Both location gets rotated by the cronjob.

# Be aware that this log type is a performance killer.

# As of 5.1 you can enable the log at runtime!

#general_log_file        = /var/log/mysql/mysql.log

#general_log             = 1

#

# Error log - should be very few entries.

#

log_error = /var/log/mysql/error.log

#

# Here you can see queries with especially long duration

#log_slow_queries   = /var/log/mysql/mysql-slow.log

#long_query_time = 2

#log-queries-not-using-indexes

#

# The following can be used as easy to replay backup logs or for replication.

# note: if you are setting up a replication slave, see README.Debian about

#       other settings you may need to change.

#server-id      = 1

#log_bin            = /var/log/mysql/mysql-bin.log

expire_logs_days    = 10

max_binlog_size         = 100M

#binlog_do_db       = include_database_name

#binlog_ignore_db   = include_database_name

#

# * InnoDB

#

# InnoDB is enabled by default with a 10MB datafile in /var/lib/mysql/.

# Read the manual for more InnoDB related options. There are many!

#

# * Security Features

#

# Read the manual, too, if you want chroot!

# chroot = /var/lib/mysql/

#

# For generating SSL certificates I recommend the OpenSSL GUI "tinyca".

#

# ssl-ca=/etc/mysql/cacert.pem

# ssl-cert=/etc/mysql/server-cert.pem

# ssl-key=/etc/mysql/server-key.pem







[mysqldump]

quick

quote-names

max_allowed_packet  = 16M



[mysql]

#no-auto-rehash # faster start of mysql but no tab completition



[isamchk]

key_buffer      = 16M



#

# * IMPORTANT: Additional settings that can override those from this file!

#   The files must end with '.cnf', otherwise they'll be ignored.

#

!includedir /etc/mysql/conf.d/