New SharePoint 2010 Instance with Databases on your own naming convention

If you want to install a new SharePoint 2010 instance with Configuration database and Administration Content database with your own naming convention follow these simple steps:

first install all the SharePoint bits and once completed do not run the wizard.

open the SharePoint Management Shell

Run this command

PS C:\Users\administrator> psconfig.exe -cmd configdb -create -server
<Your SQL Server> -database <Config Database Name> -user <User> -password
<Password> -admincontentdatabase <Admin Content DB Name> -passphrase <Your Pass Phrase>

Once you have run this command you'll have your config and admin database with the names you have provided.