How to do clean install with 10.1 update disk?

[whodiini]

Here's my problem. I installed a new larger disk at the same time I bot a new Radeon 7000 video card and sold my old one. What I did the first time I installed OS X was start with my retail 10.0, then did an upgrade using the 10.1 upgrade disk. Unfortunately, the Radeon will NOT boot using the retail 10.0 install. It will using the 10.1 upgrade, but the upgrade disk will not let me install unless I have 10.0 already. I read somewhere that there was a trick to get the 10.1 upgrade to do a clean install, but cant find that info anymore. I dont want to buy another retail 10.1, since I already paid Apple for their retail 10.0 OS disk. Any help appreciated.

[simX]

I will help you here, although Apple and some others may think that this is ethically wrong.

All I have to say is that if you really did buy Mac OS X 10.0, then you're fine. If you didn't, you have me on your conscience.....

Anyway, here's how to do it (you'll need a CD burner):

1) Open Disk Copy.

2) Insert your OS X 10.1 Upgrade CD.

3) Select "New Image from Device..." from the Image menu, or press Command-Shift-I.

4) Select the disk that corresponds to your update CD. It's a little confusing because it doesn't actually tell you which one is the CD right off the bat, you'll have to do a little detective work. First of all, you'll need to open all the flippy-triangles. When you see a subdirectory called "CD_ROM_Mode_1", you'll know you've hit a CD. If you have more than one CD drive, eject all CDs except for the update CD to make sure you have the Update CD selected.

5) Click the "Image" button. In the Save dialog, you'll need to MAKE SURE you select "Read/Write" from the Image Format pop-up menu, because you'll need to make one small modification to the image before burning it. Set a name, set encryption prefs, and press the "Image" button (you probably don't want encryption, because it's going to pointless anyway once you burn the CD).

6) Once it's done creating the image, make sure the image mounted. Now, using Sherlock, find a file called "CheckForOSX". Once you find it, delete it.

7) Now, once again, go back to Disk Copy, select "Burn Image..." from the Burn menu or press Command-B. Select your OS X 10.1 modified update CD, and then insert a disc. Once it's finished burning, you will now have a full install CD of OS X 10.1.

Once again... if you did not buy Mac OS X 10.0, you have me on your conscience....

EDIT: See below for exact location of the "CheckForOSX" file.

[macidiot]

Converting Update CD to Install CD

1. Insert your MacOS X 10.1 Update CD

2. Fire up "Disk Copy" from /Applications/Utilities

3.Select from the Menubar "Image | New Image from Device..."

4.Select your CD-ROM drive's contents from the resulting dialog

5.Image it as a "DVD/CD Master" type (this will take a little while)

Modifying the CD contents
1.Control-click (or right-click) on the resulting disk image

2.See that it's mounted

3.Navigate with the Finder to System/Installation/Packages on mounted image

4.Select the "Essentials.pkg" file...

5....by right-clicking on it and select "Show Package Contents"

6.In the pop-up Finder window, navigate to Contents/Resources/

7.Drag "CheckForOSX" to the Trash and close all these Finder windows

Burning your new Install CD
1.Go back to Disk Copy and select from the Menubar "Image | New Image from Device..."

2.Select the mounted volume you opened up above and make another "DVD/CD Master" image

3.Now select from the Menubar "Image | Burn Image..."

4.Select your newly modified .dmg file

5.Burn it to CD and enjoy

[simX]

Grr... why can't I delete double-posts?

[fryke]

This of course doesn't help when you can't boot your computer to start with.

Another option would be to get some other graphics adapter from someone, just for the time to install 10.1.

[whodiini]

I will give this a try. You wouldnt believe how many hours I wasted trying different things. As for my conscience, it is clear. I have TWO retail copies of OS X, one for each of the macs I own. Having to buy a third copy was just too much.