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If you have a hard drive with OS 9 that boots the computer, you can just copy that System Folder to the new drive and boot it. There is no reason to run an installer for classic system software. You might need to "bless" the system folder on the new drive.
 
2nd on what model? Did you have OS 9 PowerMac G4 MDD's WITH FW800 cannot boot OS 9 at all, it's classic mode only for these guys).

Please guys update yourself a little. OS9 can boot in FW800 machines with latest (2014) advances.

Please take a look on latest updates on MacOS9Lives! and think classic. Now, every PowerMac MDD can run OS9. On MacOS9Lives! there is even a Universal OS9 disk that can fool some machines limitations.

So please, we all. Stop spreading OS9 don't run on MDD FW-800. Look on think-classic and OS9Lives! forums latest updates on it.
Look one happy FW-800 OS9 native user.
A user booting an FW800 in OS9
We old school user have to re-learn this. Now it is possible.
 
Please guys update yourself a little. OS9 can boot in FW800 machines with latest (2014) advances.

Please take a look on latest updates on MacOS9Lives! and think classic. Now, every PowerMac MDD can run OS9. On MacOS9Lives! there is even a Universal OS9 disk that can fool some machines limitations.

So please, we all. Stop spreading OS9 don't run on MDD FW-800. Look on think-classic and OS9Lives! forums latest updates on it.
Look one happy FW-800 OS9 native user.
A user booting an FW800 in OS9

If you go back I have a link to some of that information. Thank you for organizing this so nicely. We should turn all information about booting OS 9.2.2-only Macs and classic mode only Macs into a wiki.
 
Thanks for the link to the .ISO—I'll burn it off and see what I can do.
 
Ok so I burned the ISO and stuck it in the MDD, it boots from it successfully but while on the Welcome to MacOS splash screen it black-screens—no video. Any ideas?
 
Ok so I burned the ISO and stuck it in the MDD, it boots from it successfully but while on the Welcome to MacOS splash screen it black-screens—no video. Any ideas?

I wouldn't use the ISO provided by MatthewLTL...

I had OS9 working on my 1.25GHz FW400 MDD and I believe I used the Macintosh Garden OS9General.dmg file. IIRC I used Disk Utility to "Restore" the dmg to the MDD with the dmg as the source and the HDD as the destination.

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Hmm... Might have something to do with it being a image for a iMac G4 not sure

What??
 
I had OS9 working on my 1.25GHz FW400 MDD and I believe I used the Macintosh Garden OS9General.dmg file. IIRC I used Disk Utility to "Restore" the dmg to the MDD with the dmg as the source and the HDD as the destination.

Have a look at all the 2015 OS9 install methods

In the old days you have to restore with OSX to have a OS9 install. Now there is even a OS9 Install CD-ROM that installs on MDDs as if they where Sawtooth-DA or QS

There are 4 methods:

Restoring with OSX as MisterKeeks suggested. http://macos9lives.com/smforum/index.php?topic=1037.0

There is also a Mac OS 9.2.2 Install for Unsupported G4s - ISO CD

Also the Format & Drag files method.

Mac OS 9.2.2 Universal Install
Mac OS 9.2.2 Universal Installation, Bootable CD with Mac OS 9.2.2 Install

No Need to Install OS X !
No DMG or other image files Needed !
No Need for any Additional Updates or Patches !
This is the only KNOWN source of Mac Os 9.2.2 CPU 5.9!
 
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Have a look at all the 2015 OS9 install methods

In the old days you have to restore with OSX to have a OS9 install. Now there is even a OS9 Install CD-ROM that installs on MDDs as if they where Sawtooth-DA or QS

There are 4 methods:

Restoring with OSX as MisterKeeks suggested. http://macos9lives.com/smforum/index.php?topic=1037.0

There is also a Mac OS 9.2.2 Install for Unsupported G4s - ISO CD

Also the Format & Drag files method.

Mac OS 9.2.2 Universal Install
I am not used to all of these new developments for 10 year old computers...
 
I'll attempt an install with the universal ISO.

(At least this is giving all these old stacks of optical media a use :p)
 
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