Linux: How to rename old mysqld when upgrading MySQL?

Posted by Continuation on Server Fault See other posts from Server Fault or by Continuation
Published on 2011-02-26T10:17:17Z Indexed on 2011/02/26 15:26 UTC
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Filed under:

mysql

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database-adminstration

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DBA

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percona-server

I'm upgrading MySQL from MySQL 5.0 to Percona Server 5.1.

I'm planning to just use yum remove and yum install to do the upgrade.

However, I read in the documentation that it's a good idea to rename the old mysqld to mysqld-5.0. And if the upgrade doesn't work, I could just revert back to the old version.

How exactly does this work? If I use yum remove, doesn't that mean the old mysqld is removed? So how do I rename it?
Where is mysqld located? How do I find it?

Thanks.

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