Comments on: How to move mysql database to another drive or partition

By: Roy

Roy — Fri, 23 Dec 2011 14:25:31 +0000

READ THIS:

Make sure to move all the ibdataN / ib_logfileN files or you WILL LOSE ALL YOU InnoDB DATA!

Damn… yes, they get recreated… and if you don’t use InnoDB you won’t notice… but if you do (like me) you will face a LOT of problems.

I guess it serves me right for relying on an old source like this.

/rant

By: Isaac

Isaac — Mon, 03 Oct 2011 19:22:51 +0000

I have to give thanks for and second the INNODB files advice. I copied just the database directories (i.e. mysql, wpdb, drupalMain, etc) and had my innodb tables show up in “SHOW TABLES” statements, but any query (select, describe) would result in “table db.tablename doesn’t exist”, even though the .frm file was there in the db directory. When I copied over ibdata1, ib_logfile0, and ib_logfile1, everything worked.

By: David M

David M — Sun, 18 Sep 2011 07:01:27 +0000

Had to update apparmor, per Don’s reply (August 15, 2008 at 12:43 am) on Ubuntu 11.04 Server (command line) using MySQL 5.1.54.

Also, I always make sure, one more time, to chmod -R mysql:mysql mysql_datadir (or whatever your folder name is) at the end of it all, before restarting MySQL.

Thanks to all, and especially “thomas’ - keeper of this blog.

David

By: Moving mysql to another data directory « From The Ground Up

Moving mysql to another data directory « From The Ground Up — Fri, 17 Jun 2011 18:15:00 +0000

[...] found myself referencing more than one source to do this properly. The best source I found was Ubuntu How-To. Note that you must be root or run all commands using sudo. For the most part this reference is [...]

By: veterinarna klinika

veterinarna klinika — Mon, 28 Mar 2011 14:33:05 +0000

thank you really

By: Mike

Mike — Wed, 23 Mar 2011 01:56:31 +0000

On Ubuntu 10.10 server, I also had to modify the script used by the “service start mysql”/”start mysql” command. The script is /etc/init/mysql.conf. The changes were
1. Replaced the only instance of the default data dir (/var/lib/mysql) with my new location
2. Changed the line “exec /usr/sbin/mysqld” to “exec /usr/sbin/mysqld –basedir=/usr”

By: bugref

bugref — Mon, 07 Mar 2011 12:15:28 +0000

Its a Great Tips and Thank you very much

By: Mover o Data Location do Mysql de um Lugar para o Outro… | THIAGOLDANIEL.COM.BR

Tue, 23 Nov 2010 16:18:41 +0000

[...] processo com CentOS e Debian e rolou 100%.O documento fonte pode ser acessado pelo endereço:http://www.ubuntu-howto.info/howto/how-to-move-mysql-databases-to-another-location-partition-or-hard….Obrigado THOMAS pelo conhecimento [...]

By: Boner

Boner — Mon, 08 Nov 2010 23:51:39 +0000

“imwaltraud says:
February 3, 2009 at 9:01 pm

You should also move the ibdata1, ib_logfile0 and ib_logfile1 files. If you don’t all your InnoDB tables will be gone.”

I did have to do this on RHEL4. Very helpful tip, thanks.

By: Morten

Morten — Thu, 21 Oct 2010 09:44:12 +0000

I had to make a change in /etc/apparmor.d/abstractions/mysql too, otherwise the admin client couldn’t connect on localhost. This is with Ubuntu 10.04 Lucid Lynx desktop, not server. YMMV.

@Don: tried that, couldn’t make it work, probably because apparmor wouldn’t have any (the messages in the log indicates that it sees the raw directory, not the symlink).