Xampp 1.7.7 Mysql could not start

Bonjour,

Je suis sur ubuntu 11,10 et j'ai un petit soucis avec le mysql de xampp 1.7.7 (je préfere rester sur xampp)

Voici le contenu de mon liberty-chat.be.err :

120421 19:18:24 mysqld_safe Starting mysqld daemon with databases from /opt/lampp/var/mysql
120421 19:18:24 [Note] Plugin 'FEDERATED' is disabled.
/opt/lampp/sbin/mysqld: Can't find file: './mysql/plugin.frm' (errno: 13)
120421 19:18:24 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it.
120421 19:18:24 InnoDB: The InnoDB memory heap is disabled
120421 19:18:24 InnoDB: Mutexes and rw_locks use InnoDB's own implementation
120421 19:18:24 InnoDB: Compressed tables use zlib 1.2.3
120421 19:18:24 InnoDB: Initializing buffer pool, size = 16.0M
120421 19:18:24 InnoDB: Completed initialization of buffer pool
120421 19:18:24 InnoDB: highest supported file format is Barracuda.
120421 19:18:24  InnoDB: Waiting for the background threads to start
120421 19:18:25 InnoDB: 1.1.8 started; log sequence number 4566792
120421 19:18:25 [ERROR] Can't start server : Bind on unix socket: Permission denied
120421 19:18:25 [ERROR] Do you already have another mysqld server running on socket: /opt/lampp/var/mysql/mysql.sock ?
120421 19:18:25 [ERROR] Aborting

120421 19:18:25  InnoDB: Starting shutdown...
120421 19:18:26  InnoDB: Shutdown completed; log sequence number 4566792
120421 19:18:26 [Note] /opt/lampp/sbin/mysqld: Shutdown complete

120421 19:18:26 mysqld_safe mysqld from pid file /opt/lampp/var/mysql/liberty-chat.be.pid ended

Voici mon fichier my.cnf :

# Example MySQL config file for medium systems.
#
# This is for a system with little memory (32M - 64M) where MySQL plays
# an important part, or systems up to 128M where MySQL is used together with
# other programs (such as a web server)
#
# You can copy this file to
# /etc/my.cnf to set global options,
# mysql-data-dir/my.cnf to set server-specific options (in this
# installation this directory is /opt/lampp/var/mysql) or
# ~/.my.cnf to set user-specific options.
#
# In this file, you can use all long options that a program supports.
# If you want to know which options a program supports, run the program
# with the "--help" option.

# The following options will be passed to all MySQL clients
[client]
#password    = your_password
port        = 3307
socket        = /opt/lampp/var/mysql/mysql.sock

# Here follows entries for some specific programs

# The MySQL server
[mysqld]
user        = nobody
port        = 3306
socket        = /opt/lampp/var/mysql/mysql.sock
skip-external-locking
key_buffer = 16M
max_allowed_packet = 1M
table_cache = 64
sort_buffer_size = 512K
net_buffer_length = 8K
read_buffer_size = 256K
read_rnd_buffer_size = 512K
myisam_sort_buffer_size = 8M

# Where do all the plugins live
plugin_dir = /opt/lampp/lib/mysql/plugin/

# Don't listen on a TCP/IP port at all. This can be a security enhancement,
# if all processes that need to connect to mysqld run on the same host.
# All interaction with mysqld must be made via Unix sockets or named pipes.
# Note that using this option without enabling named pipes on Windows
# (via the "enable-named-pipe" option) will render mysqld useless!
# 
#skip-networking

# Replication Master Server (default)
# binary logging is required for replication
# log-bin deactivated by default since XAMPP 1.4.11
#log-bin=mysql-bin

# required unique id between 1 and 2^32 - 1
# defaults to 1 if master-host is not set
# but will not function as a master if omitted
server-id    = 1

# Replication Slave (comment out master section to use this)
#
# To configure this host as a replication slave, you can choose between
# two methods :
#
# 1) Use the CHANGE MASTER TO command (fully described in our manual) -
#    the syntax is:
#
#    CHANGE MASTER TO MASTER_HOST=<host>, MASTER_PORT=<port>,
#    MASTER_USER=<user>, MASTER_PASSWORD=<password> ;
#
#    where you replace <host>, <user>, <password> by quoted strings and
#    <port> by the master's port number (3306 by default).
#
#    Example:
#
#    CHANGE MASTER TO MASTER_HOST='125.564.12.1', MASTER_PORT=3306,
#    MASTER_USER='joe', MASTER_PASSWORD='secret';
#
# OR
#
# 2) Set the variables below. However, in case you choose this method, then
#    start replication for the first time (even unsuccessfully, for example
#    if you mistyped the password in master-password and the slave fails to
#    connect), the slave will create a master.info file, and any later
#    change in this file to the variables' values below will be ignored and
#    overridden by the content of the master.info file, unless you shutdown
#    the slave server, delete master.info and restart the slaver server.
#    For that reason, you may want to leave the lines below untouched
#    (commented) and instead use CHANGE MASTER TO (see above)
#
# required unique id between 2 and 2^32 - 1
# (and different from the master)
# defaults to 2 if master-host is set
# but will not function as a slave if omitted
#server-id       = 2
#
# The replication master for this slave - required
#master-host     =   <hostname>
#
# The username the slave will use for authentication when connecting
# to the master - required
#master-user     =   <username>
#
# The password the slave will authenticate with when connecting to
# the master - required
#master-password =   <password>
#
# The port the master is listening on.
# optional - defaults to 3306
#master-port     =  <port>
#
# binary logging - not required for slaves, but recommended
#log-bin=mysql-bin


# Point the following paths to different dedicated disks
#tmpdir        = /tmp/        
#log-update     = /path-to-dedicated-directory/hostname

# Uncomment the following if you are using BDB tables
#bdb_cache_size = 4M
#bdb_max_lock = 10000

# Comment the following if you are using InnoDB tables
#skip-innodb
innodb_data_home_dir = /opt/lampp/var/mysql/
innodb_data_file_path = ibdata1:10M:autoextend
innodb_log_group_home_dir = /opt/lampp/var/mysql/
# You can set .._buffer_pool_size up to 50 - 80 %
# of RAM but beware of setting memory usage too high
innodb_buffer_pool_size = 16M
innodb_additional_mem_pool_size = 2M
# Set .._log_file_size to 25 % of buffer pool size
innodb_log_file_size = 5M
innodb_log_buffer_size = 8M
innodb_flush_log_at_trx_commit = 1
innodb_lock_wait_timeout = 50

[mysqldump]
quick
max_allowed_packet = 16M

[mysql]
no-auto-rehash
# Remove the next comment character if you are not familiar with SQL
#safe-updates

[isamchk]
key_buffer = 20M
sort_buffer_size = 20M
read_buffer = 2M
write_buffer = 2M

[myisamchk]
key_buffer = 20M
sort_buffer_size = 20M
read_buffer = 2M
write_buffer = 2M

[mysqlhotcopy]
interactive-timeout

Voici la réponse à la commande : "ll /opt/lampp/var" :

root@liberty-chat:~# ll /opt/lampp/var
total 36
drwxr-xr-x  6 root root 4096 2012-04-21 02:33 ./
drwxr-xr-x 19 root root 4096 2012-04-09 21:43 ../
drwxrwxr-x 19 root root 4096 2012-04-21 19:18 mysql/
drwxr-xr-x  4 root root 4096 2009-07-30 11:18 perl/
drwxr-xr-x  2 root root 4096 2012-04-08 01:20 proftpd/
-rw-r--r--  1 root root 6440 2012-04-21 02:18 proftpd.delay
-rw-r--r--  1 root root    0 2012-04-21 02:33 proftpd.pid
-rw-r--r--  1 root root   16 2012-04-21 02:33 proftpd.scoreboard
drwxr-xr-x  2 root root 4096 2007-05-09 14:25 run/

Voici la réponse à la commande : "ll /opt/lampp/var/mysql" :

root@liberty-chat:~# ll /opt/lampp/var/mysql
total 36988
drwxrwxr-x 19 root   root        4096 2012-04-21 19:18 ./
drwxr-xr-x  6 root   root        4096 2012-04-21 02:33 ../
drwx------  2 root   root        4096 2007-03-23 19:54 cdcol/
drwx------  2 root   nogroup     4096 2012-04-09 03:06 characters/
drwx------  2 root   nogroup     4096 2012-04-19 00:15 gamepanel/
drwx------  2 root   nogroup     4096 2012-04-18 22:45 gpx/
-rw-rw----  1 root   nogroup 27262976 2012-04-21 19:18 ibdata1
-rw-rw----  1 root   nogroup  5242880 2012-04-21 19:18 ib_logfile0
-rw-rw----  1 root   nogroup  5242880 2012-04-08 01:20 ib_logfile1
-rw-rw----  1 nobody root        1362 2012-04-21 19:18 liberty-chat.be.err
drwx------  2 root   nogroup    20480 2012-04-09 03:11 mangos/
drwxrwxrwx  2 root   root        4096 2011-01-10 14:49 mysql/
-rw-r--r--  1 root   root           5 2011-01-10 14:49 mysql_upgrade_info
-rw-rw----  1 root   root           0 2012-04-21 17:09 ns395751.ovh.net.err
drwxr-xr-x  2 root   root       12288 2012-04-08 04:18 nuked/
drwx------  2 root   nogroup     4096 2012-04-16 23:16 partage/
drwx------  2 root   root        4096 2011-01-10 14:49 performance_schema/
drwx------  2 root   root        4096 2011-05-17 15:15 phpmyadmin/
drwx------  2 root   nogroup     4096 2012-04-21 00:57 rankme/
drwx------  2 root   nogroup     4096 2012-04-09 03:05 realmd/
drwx------  2 root   nogroup     4096 2012-04-10 00:58 SAMDB/
drwx------  2 root   nogroup     4096 2012-04-09 02:53 scriptdev2/
drwx------  2 root   nogroup     4096 2012-04-20 22:40 sourcemod/
drwx------  2 root   root        4096 2010-05-04 12:29 test/
drwx------  2 root   nogroup    20480 2012-04-10 01:49 xoops/

Voici ce que me donne comme réponse aux commandes "ps aux | grep mysql" et "whereis mysql{,d}" :

root@liberty-chat:~# ps aux | grep mysql
root     24192  0.0  0.0   9772   896 pts/1    S+   20:41   0:00 grep --color=auto mysql
root@liberty-chat:~# whereis mysql{,d}
mysql: /usr/bin/mysql /etc/mysql /usr/lib/mysql /usr/include/mysql /usr/share/mysql /opt/lampp/bin/mysql /opt/lampp/bin/mysql.server /usr/share/man/man1/mysql.1.gz
mysqld: /usr/sbin/mysqld /usr/share/man/man8/mysqld.8.gz

Je ne comprends pas grand chose a ses lignes.

Dans le dossier "/opt/lampp/var/run/mysql", les fichiers suivant ont disparu :

liberty-chat.be.pid
ns395751.ovh.net.pid
mysql.sock

Ce qui est bizzare c'est que quand j'utilise putty en ligne de commande par "locate", je les trouvent et ce dans le bon dossier, mais si j'essaye de faire par exemple un chmod il dit que le fichier est inexistant (je suis bien dans le bon dossier) et dans WinScp il apparaissent meme pas.

J'avais fais un lien symbolique de :

/tmp/var/ vers /opt/lampp/var/run/mysql/mysql.sock

et

/etc/mysql/ vers /opt/lampp/var/run/mysql/mysql.sock

et un de

/var/lib/mysql/ vers /opt/lampp/var/run/mysql/mysql.sock

Suite aux erreurs suivantes :

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/var/mysql.sock' (2)

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/etc/mysql/mysql.sock' (2)

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)

Pourriez-vous m'aider svp ?

Merci d'avance.

Bien à vous.