mysqld --initialize (Errcode: 17 - File exists)

[Philip Häderli]

hi,
i install mysql on Ubuntu 16.04.1 LST

after installation, i change the DB directory.

when i run mysqld --initialize, com output "(Errcode: 17 - File exists)" !

the dirictoru ist mysql owner and grup, permission is 0755 !

when i delet the therictori, is the errorcode 13, permission denedy !

thasnk you for you help !

Philip



my my.cnf
[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
#
user = mysql
pid-file = /var/run/mysqld/mysqld.pid
socket = /var/run/mysqld/mysqld.sock
port = 3306
basedir = /usr
datadir = /local_data/db/mysql
tmpdir = /tmp
lc-messages-dir = /usr/share/mysql
skip-external-locking
explicit_defaults_for_timestamp = 1