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-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
mysqldis removed? So how do I rename it?
mysqldlocated? How do I find it?