Rich, First, I don't think you have to do anything other than go to your OSX System Preferences/StartUp Disk and select the drive you want to be the startup drive. The Mac does not care but if you only have OS9 on the 60 GB drive, you will boot into OS9. If you want the 60 to be your primary, you may want to install OSX and then you can run in Classic mode if necessary to run certain programs. I have two 128 GB drives in my G4 a primary and backup and can boot from either drive. Both have OSX and OS9 in one partition. I started with 40 GB and then added the 128 and the 40 got too full. I finally cloned it to the 128 and put the 40 away as a remote backup and added an 80 SATA that has now been replaced by another 128. There is no such thing as too much disc space. Drives are pretty cheap these days. Dick On 8/2/06 9:11 AM, "g4-request at listserver.themacintoshguy.com" <g4-request at listserver.themacintoshguy.com> wrote: > Date: Sat, 29 Jul 2006 14:19:05 -0700 (PDT) > From: Richard Ramsowr <r.ramsowr at sbcglobal.net> > Subject: [G4] Looking to flip two hard drives and need so > directions... > To: G4 at listserver.themacintoshguy.com > Message-ID: <20060729211905.58131.qmail at web81413.mail.mud.yahoo.com> > Content-Type: text/plain; charset=iso-8859-1 > > Good afternoon all... > > IÕve got a Power PC ÒQuicksilverÓ 733MHz with two hard > drives. A 40 GB hard drive which is my Main Bootable > drive and a second 60GB hard drive which is my backup > drive. IÕve just added a new SuperDrive (DVD) which is > starting to solve a lot of my ÒbackupÓ needs. > > So IÕm looking to flip these hard drives around so > that the 60 GB is the principle drive (Bootable) and > the other one is a secondary drive for OS 9 (Classic) > and some short term backup duties. > > How do I go about this task and what software do I > need to get the job done with out messing the whole > computer up? > > Thanks for your input... > > Rick