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-   -   just installed mysql srver 5.1, but getting errors while creating username&password. (https://www.linuxquestions.org/questions/linux-newbie-8/just-installed-mysql-srver-5-1-but-getting-errors-while-creating-username-and-password-932334/)

imran042 03-02-2012 08:16 AM
just installed mysql srver 5.1, but getting errors while creating username&password.
 
just installed, mysql Ver 14.14 Distrib 5.1.54, for debian-linux-gnu (x86_64) using readline 6.2.

but at the end, of installation of this program the program didnt ask me for entering a username and password.
and now i am not getting connected to mysql server.

when i type mysql> start on the command line it shows,

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

how do i get connected to the mysql server?
how do i create a username and password to acess mysql server.

regerds,
Imran

lithos 03-02-2012 09:05 AM
Hi imran042

just for the start
did you 'define' (create or whatever) your mysql's root password ?
Code:
Connecting to the MySQL Server For the First Time

The MySQL client program, also known as the MySQL monitor, is an interface that allows the user to connect to the MySQL server, create and modify databases, and execute queries and view their results. This program is started by executing the command mysql at the shell prompt. In general, the syntax for this command is:

%>mysql [options] [database]

Where [options] can be one or a series of options used in conjunction with the mysql program, and [database] is the name of the database to use. Since it is assumed to be the reader's first time using the MySQL monitor, take a moment to review all offered options by executing the following command:

%>mysql --help

This produces a long list of options that can be used in conjunction with the mysql program. For the moment, however, the main goal is to simply connect to the database server. Therefore, execute the following command:

%>mysql -u root

The following should appear:

Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 8 to server version: 3.23.28-gamma-log

Type 'help;' or '\h' for help. Type '\c' to clear the buffer

mysql>

...

mysql>SET PASSWORD FOR 'root'@'localhost' = PASSWORD('secret_password');
- from mysql intro
or
- how to install mysql

anomie 03-02-2012 09:27 AM
I think he's saying he can't connect to the MySQL daemon at all.

Quote:
Originally Posted by imran042
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2).
Is it running?
Code:
# ps -ef | grep '[m]ysql'
If not, start it. Should be something like:
Code:
# /etc/init.d/mysql-server start
(Use tab completion or view the init.d subdirectory to figure out the right name.)

If it is running, where did you define the socket file to live? /etc/my.cnf will tell you the answer.

imran042 03-02-2012 09:30 AM
I had installed MYSQL server 5.1 and there is no mysql client monitor...
instead there is a terminal server client.
and while installation of mysql it didnt ask for a username and no prompts in between regarding usernames and passwords, it just installed.

acid_kewpie 03-02-2012 09:32 AM
as above, if you want to connect to the mysql server, it needs to be running. Start it.

imran042 03-02-2012 09:40 AM
Code:
# ps -ef | grep '[m]ysql'
this is not working, it shows

imran@imran-G41D3C:~$ ps -ef | grep '[m]ysql'
imran@imran-G41D3C:~$

yancek 03-02-2012 09:44 AM
If you haven't set a root password, that would be the first step. Do as shown above in a terminal:

Quote:
mysql -u root
You should then get the message shown above in the post by lithos where you would enter a password at the mysql prompt (mysql>)

Quote:
SET PASSWORD FOR root@localhost=PASSWORD('00000000');
Enter your actual password where the zeroes are. If this is not the problem, post back with more detail.

acid_kewpie 03-02-2012 09:44 AM
Quote:
Originally Posted by imran042 (Post 4616886)
Code:
# ps -ef | grep '[m]ysql'
this is not working, it shows

imran@imran-G41D3C:~$ ps -ef | grep '[m]ysql'
imran@imran-G41D3C:~$
no, that's working perfectly well. Start mysql.

imran042 03-02-2012 09:49 AM
after typing, mysql -u root , it gives

imran@imran-G41D3C:~$ mysql -u root
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)

anomie 03-02-2012 10:06 AM
Folks, please - before anyone else asks OP to fire up a client and set root's password, read the whole thread.

@imran042: please read the replies you are getting. You need to start the MySQL daemon. It is not running, so you won't be connecting to it until it is.

imran042 03-02-2012 10:16 AM
after the command, mysql service start

imran@imran-G41D3C:~$ mysql service start
mysql Ver 14.14 Distrib 5.1.54, for debian-linux-gnu (x86_64) using readline 6.2
Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
This software comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to modify and redistribute it under the GPL v2 license
Usage: mysql [OPTIONS] [database]
-?, --help Display this help and exit.
-I, --help Synonym for -?
--auto-rehash Enable automatic rehashing. One doesn't need to use
'rehash' to get table and field completion, but startup
and reconnecting may take a longer time. Disable with
--disable-auto-rehash.
-A, --no-auto-rehash
No automatic rehashing. One has to use 'rehash' to get
table and field completion. This gives a quicker start of
mysql and disables rehashing on reconnect.
-B, --batch Don't use history file. Disable interactive behavior.
(Enables --silent.)
--character-sets-dir=name
Directory for character set files.
--column-type-info Display column type information.
-c, --comments Preserve comments. Send comments to the server. The
default is --skip-comments (discard comments), enable
with --comments.
-C, --compress Use compression in server/client protocol.
-#, --debug[=#] This is a non-debug version. Catch this and exit.
--debug-check Check memory and open file usage at exit.
-T, --debug-info Print some debug info at exit.
-D, --database=name Database to use.
--default-character-set=name
Set the default character set.
--delimiter=name Delimiter to be used.
-e, --execute=name Execute command and quit. (Disables --force and history
file.)
-E, --vertical Print the output of a query (rows) vertically.
-f, --force Continue even if we get an SQL error.
-G, --named-commands
Enable named commands. Named commands mean this program's
internal commands; see mysql> help . When enabled, the
named commands can be used from any line of the query,
otherwise only from the first line, before an enter.
Disable with --disable-named-commands. This option is
disabled by default.
-g, --no-named-commands
Named commands are disabled. Use \* form only, or use
named commands only in the beginning of a line ending
with a semicolon (;). Since version 10.9, the client now
starts with this option ENABLED by default. Disable with
'-G'. Long format commands still work from the first
line. WARNING: option deprecated; use
--disable-named-commands instead.
-i, --ignore-spaces Ignore space after function names.
--local-infile Enable/disable LOAD DATA LOCAL INFILE.
-b, --no-beep Turn off beep on error.
-h, --host=name Connect to host.
-H, --html Produce HTML output.
-X, --xml Produce XML output.
--line-numbers Write line numbers for errors.
-L, --skip-line-numbers
Don't write line number for errors.
-n, --unbuffered Flush buffer after each query.
--column-names Write column names in results.
-N, --skip-column-names
Don't write column names in results.
-O, --set-variable=name
Change the value of a variable. Please note that this
option is deprecated; you can set variables directly with
--variable-name=value.
--sigint-ignore Ignore SIGINT (CTRL-C).
-o, --one-database Only update the default database. This is useful for
skipping updates to other database in the update log.
--pager[=name] Pager to use to display results. If you don't supply an
option, the default pager is taken from your ENV variable
PAGER. Valid pagers are less, more, cat [> filename],
etc. See interactive help (\h) also. This option does not
work in batch mode. Disable with --disable-pager. This
option is disabled by default.
--no-pager Disable pager and print to stdout. See interactive help
(\h) also. WARNING: option deprecated; use
--disable-pager instead.
-p, --password[=name]
Password to use when connecting to server. If password is
not given it's asked from the tty.
-P, --port=# Port number to use for connection or 0 for default to, in
order of preference, my.cnf, $MYSQL_TCP_PORT,
/etc/services, built-in default (3306).
--prompt=name Set the mysql prompt to this value.
--protocol=name The protocol to use for connection (tcp, socket, pipe,
memory).
-q, --quick Don't cache result, print it row by row. This may slow
down the server if the output is suspended. Doesn't use
history file.
-r, --raw Write fields without conversion. Used with --batch.
--reconnect Reconnect if the connection is lost. Disable with
--disable-reconnect. This option is enabled by default.
-s, --silent Be more silent. Print results with a tab as separator,
each row on new line.
-S, --socket=name The socket file to use for connection.
--ssl Enable SSL for connection (automatically enabled with
other flags).Disable with --skip-ssl.
--ssl-ca=name CA file in PEM format (check OpenSSL docs, implies
--ssl).
--ssl-capath=name CA directory (check OpenSSL docs, implies --ssl).
--ssl-cert=name X509 cert in PEM format (implies --ssl).
--ssl-cipher=name SSL cipher to use (implies --ssl).
--ssl-key=name X509 key in PEM format (implies --ssl).
--ssl-verify-server-cert
Verify server's "Common Name" in its cert against
hostname used when connecting. This option is disabled by
default.
-t, --table Output in table format.
--tee=name Append everything into outfile. See interactive help (\h)
also. Does not work in batch mode. Disable with
--disable-tee. This option is disabled by default.
--no-tee Disable outfile. See interactive help (\h) also. WARNING:
Option deprecated; use --disable-tee instead.
-u, --user=name User for login if not current user.
-U, --safe-updates Only allow UPDATE and DELETE that uses keys.
-U, --i-am-a-dummy Synonym for option --safe-updates, -U.
-v, --verbose Write more. (-v -v -v gives the table output format).
-V, --version Output version information and exit.
-w, --wait Wait and retry if connection is down.
--connect_timeout=# Number of seconds before connection timeout.
--max_allowed_packet=#
The maximum packet length to send to or receive from
server.
--net_buffer_length=#
The buffer size for TCP/IP and socket communication.
--select_limit=# Automatic limit for SELECT when using --safe-updates.
--max_join_size=# Automatic limit for rows in a join when using
--safe-updates.
--secure-auth Refuse client connecting to server if it uses old
(pre-4.1.1) protocol.
--server-arg=name Send embedded server this as a parameter.
--show-warnings Show warnings after every statement.

Default options are read from the following files in the given order:
/etc/my.cnf /etc/mysql/my.cnf /usr/etc/my.cnf ~/.my.cnf
The following groups are read: mysql client
The following options may be given as the first argument:
--print-defaults Print the program argument list and exit.
--no-defaults Don't read default options from any option file.
--defaults-file=# Only read default options from the given file #.
--defaults-extra-file=# Read this file after the global files are read.

Variables (--variable-name=value)
and boolean options {FALSE|TRUE} Value (after reading options)
--------------------------------- -----------------------------
auto-rehash TRUE
character-sets-dir (No default value)
column-type-info FALSE
comments FALSE
compress FALSE
debug-check FALSE
debug-info FALSE
database (No default value)
default-character-set latin1
delimiter ;
vertical FALSE
force FALSE
named-commands FALSE
ignore-spaces FALSE
local-infile FALSE
no-beep FALSE
host (No default value)
html FALSE
xml FALSE
line-numbers TRUE
unbuffered FALSE
column-names TRUE
sigint-ignore FALSE
port 3306
prompt mysql>
quick FALSE
raw FALSE
reconnect TRUE
socket /var/run/mysqld/mysqld.sock
ssl FALSE
ssl-ca (No default value)
ssl-capath (No default value)
ssl-cert (No default value)
ssl-cipher (No default value)
ssl-key (No default value)
ssl-verify-server-cert FALSE
table FALSE
user (No default value)
safe-updates FALSE
i-am-a-dummy FALSE
connect_timeout 0
max_allowed_packet 16777216
net_buffer_length 16384
select_limit 1000
max_join_size 1000000
secure-auth FALSE
show-warnings FALSE
imran@imran-G41D3C:~$

this is what i get, what is the problem?

regards,
Imran

imran042 03-02-2012 10:29 AM
How to start MySQL daemon, i am new to mysql.

lithos 03-02-2012 10:48 AM
YOU SHOULD START it with:
Code:
~$ service mysql start

or

service mysqld start

or

service mysql restart

whichever works (the problem is that you didn't start it with the command: mysql service start <-- this is wrong )

see the difference:
$ service mysql start

and
$ mysql service <--- wrong !

anomie 03-02-2012 10:49 AM
I just installed mysql-server on my (test) Debian system to give you a verbatim answer. As root, run:
Code:
# /etc/init.d/mysql start
And please, imran042, for your sake and the sake of a safer 'net, pick up a book on Linux for beginniners and another on MySQL for beginners.

imran042 03-02-2012 11:03 AM
imran@imran-G41D3C:~$ /etc/init.d/mysql start
bash: /etc/init.d/mysql: No such file or directory

thats it .


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