By (author unknown), MacOSXHints.com – October 10, 2012 at 10:30AM
Recently I became so sick of the slowness of my MacBook Pro (late 2011 model), which has a 2.4 GHz Intel Core i5 with 16 GB RAM running Mountain Lion 10.8.2, that I decided to buy a 120 GB Kingston SVP 200 SSD drive for my boot drive and put my previous 500 GB Hitachi HD in place of the DVD drive.
I left my old system in place on the old drive and did a clean install of Mountain Lion 10.8.2 on the SSD. I then set up my main user account with the same name and password as before. In the Users & Groups preference pane, I right-clicked on my account name and selected Advanced Options, and set the location of my user account to be my old user account on the secondary drive now named Data HD. Obviously, for all permissions to work correctly you need to keep the new user names and passwords the same as the old ones. That all worked fine, and when I rebooted and logged in to my account, all my Users are on the Data HD. I then used Migration Assistant to pull over all my Apps to …