Innodb disabled, why?

[Jason W]

Hello,

i Have an Ubuntu 12.04 Server running mysql 5.5.31 and for Magento i need Innodb, but i dont get it enabled.

Command "show engines;" gives me this:
Engine: Innodb
Support: no

Command "SHOW VARIABLES LIKE 'have_innodb';" gives me this:
have_innodb | DISABLED

Command "show engine innodb status;" gives me this:
ERROR 1286 (42000): Unknown storage engine 'innodb'

I tried everything, changing the innodb_log_file_size, editing the my.cnf but i dont get innodb running.


My.cnf file:

[client]
port = 3306
socket = /var/run/mysqld/mysqld.sock

[mysqld_safe]
socket = /var/run/mysqld/mysqld.sock
nice = 0


[mysqld]
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

bind-address = 127.0.0.1
key_buffer = 16M
max_allowed_packet = 16M
thread_stack = 192K
thread_cache_size = 8

myisam-recover = BACKUP

query_cache_limit = 1M
query_cache_size = 16M

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

[root@~]# grep innodb /etc/mysql/my.cnf
innodb_data_home_dir = /var/lib/mysql
innodb_data_file_path = ibdata1:10M:autoextend
innodb_log_group_home_dir = /var/lib/mysql
default-storage-engine=innodb
#default-table-type=innodb
innodb_buffer_pool_size = 256M
innodb_additional_mem_pool_size = 40M
innodb_log_file_size = 100M
innodb_log_buffer_size = 4M
innodb_flush_log_at_trx_commit = 1
innodb_lock_wait_timeout = 50
innodb_flush_method=O_DIRECT
innodb_fast_shutdown = 0

[mysqldump]
quick
quote-names
max_allowed_packet = 16M

[isamchk]
key_buffer = 16M

!includedir /etc/mysql/conf.d


I really have no more Ideas, i hope you can help me.