mysql 3 and 4 in the same machine

[Gianni_T]

Hi all,
I have tu install mysql4 in a Linux box that have already installed mysql 3 without unistalling it. Is there a tutorial to accomplish this task?

[greenman]

There's documentation on the MySQL site that should help you do what you need.

[echoi1975]

one thing to remember
is to make sure you have separate my.cnf for each instance you want to serve on your machine.

instead of placing it in /etc

put it in $MYSQL_HOME/$DATA_DIR

i had some troubles with configuring 5 to co-exist with 4 on the same box.

tried passing in command line parameters, but it ended up being easier to configure the my.cnf file to tell mysql server which port and what sock file to use.

[JasonMichael]

I believe its also in the my.cnf file that you set the TCP port number in which MySQL uses to communicate. You *definitely* will want to have a different TCP port number for each version you have running.

[echoi1975]

woohoo
that worked read thru the documentation and found the same thing u talked about. i guess it's good for ppl to RTFM eh?

Thanks

ec.