Comments on: Mysql Database Server Installation and Configuration in Ubuntu

By: Grant

Grant — Fri, 24 Jul 2009 15:35:55 +0000

Hello,

How are you logging into mysql. Is it something like this?

$ mysql -u root -p

By: Simon Taylor

Simon Taylor — Thu, 23 Jul 2009 18:30:25 +0000

Hi,

I get the same error:
mysqladmin: connect to server at ‘localhost’ failed
error: ‘Access denied for user ‘root’@’localhost’ (using password: NO)’

Don’t get it!

Cheers

By: Grant

Grant — Wed, 06 May 2009 13:26:54 +0000

Hello

I am getting some errors that I cannot understand/resolve:

I am trying to reset the root password for mysql and this happens

mysqladmin: connect to server at ‘localhost’ failed
error: ‘Access denied for user ‘root’@'localhost’ (using password: NO)’

How do I fix this.

By: Rabindra

Rabindra — Wed, 15 Apr 2009 09:52:12 +0000

thanks for the solution

By: Anton

Anton — Wed, 18 Mar 2009 22:50:13 +0000

Thanx!!! It almost worked… BUT I have a problem: after I configured directory privileges and apparmor and MYSQL conf file – everything seems to work fine. BUT the problem is – I can not create NEW DATABASES – it tells me error#13. Does anybody know something about this problem?

Thanks in advance!

By: Somnuk

Somnuk — Tue, 16 Dec 2008 07:38:05 +0000

Greate nickrud, you really help me.

By: sergey

sergey — Thu, 04 Dec 2008 10:21:46 +0000

Thanks! It works!!!

By: sarang

sarang — Fri, 19 Sep 2008 21:53:28 +0000

Hey

One of our application developer requested to change the ownership of my.cnf file from root to mysql user and mysql group.

I was thinking about it could not think of any reason why I cannot do this.

Would this be ok or is there a reason why we shoulc have /etc/my.cnf owned by root.

Let me know.
Thanks,
SArang

By: HaC|away

HaC|away — Wed, 03 Sep 2008 12:53:46 +0000

Another thing you should not forget is to restart /etc/init.d/apparmor after changing the /etc/apparmor.d/usr.sbin.mysqld file. I wondered why it did not work

By: Chris Chua

Chris Chua — Thu, 07 Aug 2008 21:32:30 +0000

Thank you so so so so soooo much, nickrud. Your comment saved me. I’ve been trying this for the past 3 hours and it’s 5am (over here) now. I wonder where to look for such gotchas like that… How would a newbie like me know about apparmor? It’s even a standard and I had no clue it existed…

By: nickrud

nickrud — Sat, 12 Jul 2008 17:32:34 +0000

Since apparmor is now standard in ubuntu (at least since hardy, which is the release I’m working with now) you will also have to make a change to /etc/apparmor/apparmor.d/usr.sbin.mysqld as well in order to change the datadir. I needed to add the lines

/home/mysql/ r,
/home/mysql/** rwk,

to enable the correct access permissions to the new data directory.

By: Admin

Admin — Tue, 10 Apr 2007 15:14:55 +0000

you need to make sure you have vi editor installed in your machine otherwise install vi using the following command

#apt-get install vim

Now you need to edit the file using the following command

sudo vi /etc/mysql/my.cnf

If you install mysql in debian or ubuntu from packages you will find the above file without any problem.

Please give us which operating system you are running and how did you installed mysql server in your machine.

By: Tanya

Tanya — Tue, 10 Apr 2007 12:36:08 +0000

why can not I use
sudo /etc/mysql/my.cnf

and I have /etc/my.cnf
so I used
sudo /etc/my.cnf
it said command not found

I did not find “datadir = /var/lib/mysql” in the file my.cnf either.

I want to change the directory of the database, because not enough disk space left.
anybody knows , Please help me, Thanks a lot.

By: Lois

Lois — Mon, 06 Nov 2006 20:29:26 +0000

Yeah!!! you’re my hero! my problem was the direcotri privilegies in the new datadir; but that’s it with the chown -R mysql:mysql.
Do it after copying the files.

Thanks for all!

By: Admin

Admin — Mon, 06 Nov 2006 12:51:18 +0000

Hi Lois,

Here is the procedure how to change Mysql default data directory

By default, MySQL’s datadir is placed in the /var/lib/mysql directory.

Create the directory that will be new datadir (ex:-/home/db)

chown the directory to the mysql:mysql user

sudo chown -R mysql:mysql /home/db/*

You need to stop the mysql server using the following command

sudo /etc/init.d/mysql stop

Now you need to edit the /etc/mysql/my.cnf file

sudo vi /etc/mysql/my.cnf

and look for “datadir = /var/lib/mysql” this si where mysql database default data directory here you need to change this one to your new directory

datadir = /home/db

copy the files from the old datadir to the new location. However, make sure that the files named
ib_arch_log_0000000000, ib_logfile0 etc. are not copied to the newer location.

Make sure that the files and directories are owned by mysql user

Make changes in the my.cnf to point the new datadir.

Restart the MySQL database

sudo /etc/init.d/mysql start

hope this helps

By: Lois

Lois — Mon, 06 Nov 2006 12:20:37 +0000

Hi!
I have installed mysql server on my Ubuntu Desktop; and works fine, but I want to change de mysql datadir. Do yo know how can I change that? If I edit my.conf the line datadir for my directori, mysql never restarts.
The new datadir is with the same permissions, and content.

Any ideas? Wy in apache is easy to change but in mysql not?