Unable to run multiple instances!

[Muhammad Bashir Al-Noimi]

Hi,

I want to run multiple instances of MySQL 5.7.13 under Ubuntu 14.04 x64 but when so I created a new group in my.cnf called [mysqld1] and run the following command but unfortunately I get this error message:

mbnoimivm@ubuntu:~$ sudo mysql_install_db --user=mysql --datadir=/var/lib/mysql1
[sudo] password for mbnoimivm:
2016-07-29 21:12:27 [WARNING] mysql_install_db is deprecated. Please consider switching to mysqld --initialize
2016-07-29 21:12:27 [ERROR]   Can't locate the server executable (mysqld).
mbnoimivm@ubuntu:~$ sudo service mysql status
 * MySQL Community Server 5.7.13 is running
mbnoimivm@ubuntu:~$

How can I fix this issue?

--- my.cnf ---

[client]
port        = 3306
socket        = /var/run/mysqld/mysqld.sock
default-character-set = utf8

[mysqld_safe]
pid-file    = /var/run/mysqld/mysqld.pid
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
explicit_defaults_for_timestamp
collation-server = utf8_unicode_ci
init-connect='SET NAMES utf8'
character-set-server = utf8
key_buffer_size = 384M
max_allowed_packet = 128M
#table_open_cache = 512
sort_buffer_size = 2M
read_buffer_size = 2M
read_rnd_buffer_size = 8M
myisam_sort_buffer_size = 256M
thread_cache_size = 8
query_cache_size = 256M
log-error    = /var/log/mysql/error.log
symbolic-links=0
big-tables
default-storage-engine = MyISAM
sql-mode="STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"
slow-query-log = 1
slow-query-log-file = /var/log/mysql/slow.log
general-log = 1
general-log-file = /var/log/mysql/general.log
#default-time-zone = 'Europe/Istanbul'
#max_connections = 1002
#open-files-limit = 10000

[mysqld1]
pid-file    = /var/run/mysqld/mysqld1.pid
socket        = /var/run/mysqld/mysqld1.sock
port        = 3307
user        = mysql
basedir        = /usr
datadir = /var/lib/mysql1

[mysqldump]
quick
max_allowed_packet = 16M

[mysql]
default-character-set = utf8
no-auto-rehash

[myisamchk]
key_buffer_size = 256M
sort_buffer_size = 256M
read_buffer = 2M
write_buffer = 2M

[mysqlhotcopy]
interactive-timeout


!includedir /etc/mysql/conf.d/