First off, you are awesome (as is Ipstenu)–I would have never even fathomed setting up a Multisite prior to to this Support Forum becoming so active and helpful. Is there a thread on here you haven't contributed to?
you install a single wp n your live site, including the db.
So, you're saying to do a clean SINGLE SITE install on my "dev" subdomain, before moving any files? Won't the root folder need to be replaced? I thought I would just download the entire site via FTP, then create my new subdomain, and upload the site HTML folder. I need to keep my old WordPress (3.1.3) version in tact as well, and this would save me from needing to install WordPress at all, wouldn't it?
rename the prefixes from the multsite dump to match your new single site.
dump them in the new db.
I just want to make sure I understand what you're saying here. You're saying I'll need to open the DB file in a text error and do a find/replace "mynetwork.com" with "dev.mynetwork.com". Also change the siteurl and home. I've done this with single site–I'm guessing this is what you mean. I'm planning to do this outside of MySQL, in a local text editor, rather than the method shown here: http://codex.wordpress.org/Changing_The_Site_URL#Multi-site_notes
Also, am I safe to do this "clone" on a subdomain of my LIVE site, i.e. dev.mynetwork.com on mynetwork.com?
I've seen a few comments on here regarding subdomain structure for the Child Sites, which is what I'm using on my network. Are there any issues to look out for there? I won't worry about any domain mapping on my dev site. i.e. I'll just access the sites via siteA.mynetwork.com, siteB.mynetwork.com, etc.
Lastly, I've been checking out your plugins I'm curious about Replicator (as well as Curator, but I'll get to that later). It looks awesome, as I've been exporting sites and then having to wrangle all my settings. I think I'm going to purchase that in the next few days…what a timesaver!
Thanks for your help. I need to get this site cloned so I can test the WP updates and get out of WP 3.1.3. I just want to make sure I don't screw up the LIVE site somewhere along the way. :)