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how do i install OS 9 onto my OS X (G3 mac)?

i am running Tiger OS X 10.4.3 on an old iMac G3. i want to install OS 9 (which came with the computer) so i can run Classic, and run old applications.

how do i do this?

when i try to install the OS 9 system, i get a message that says
"cannot find OS 9 system folder" (or something like that).

thanks.

G3, Mac OS X (10.4.3)

Posted on Apr 14, 2007 7:17 PM

Reply
18 replies

Apr 14, 2007 11:13 PM in response to korgy

Hi, korgy -

Welcome to Apple's Discussions.

i get a message that says "cannot find OS 9 system folder" (or something like that).

That indicates that you probably did not boot the machine to the OS 9 Install CD, and tried to run the installer on the CD while the machine was booted to OSX.

The installers on all stand-alone OS 9 Install CDs, including original Software Install CDs, will run only when the machine is booted to OS 9. This usually means booting the machine to the CD.

Once you are booted to the OS 9 Install CD (if it is an original disk, use the Software Install disk not the Software Restore CD), select to do a Clean Install. A Clean Install of OS 9 will not remove anything from the hard drive; however, it will avoid a situation where the installer can get confused by one of OSX's internal folders.
Article #58176 - Mac OS 8, Mac OS 9: Performing a Clean Installation

***

When the machine is booted to the CD, if you do not see the icon of the hard drive on the desktop it would indicate that the drive was last formatted using OSX's Disk Utility, and the option to install OS 9 drivers was not selected.
Article #106849 - Disk Is Available in Mac OS X But Not in Mac OS 9

Apr 15, 2007 2:33 PM in response to Don Archibald

hi Don, thank-you for your input.

That indicates that you probably did not boot the machine to the OS 9 Install CD, and tried to run the installer on the CD while the machine was booted to OSX.

here is the situation:

i am trying to boot the computer from the OS 9 original iMac Software Install CD from an external CD drive.

will this work?

the reason is, the built-in CD slot drive on the machine has a CD stuck in it, and the computer is not able to eject it. (i have tried everything, including the paperclip-in-the-hole, etc etc).

should i be able to boot the computer from the OS 9 CD from an external CD drive?

thank-you for your help.




G3 Mac OS X (10.4.3)


G3 Mac OS X (10.4.3)

Apr 15, 2007 4:07 PM in response to Don Archibald

Don, not sure exactly which aspect you are asking about, but i believe the original machine is THIS one (from the list you linked me to...):

1999-10
Mac OS 9.0
Blueberry
350 MHz
Slot loading CD-ROM drive
6 GB hard drive

it was purchased in 2000, but the lit says copyright 1999.
memory chips have been upgraded, and the motherboard was replaced.

this is what "About my Mac" now says:

Machine Name: iMac
Machine Model: PowerMac2,1
CPU Type: PowerPC 750 (2.2)
Number Of CPUs: 1
CPU Speed: 350 MHz
L2 Cache (per CPU): 512 KB
Memory: 1 GB
Bus Speed: 100 MHz
Boot ROM Version: 4.1.9f1

thanks

Apr 16, 2007 12:05 AM in response to korgy

Hi, korgy -

Your iMac 350MHz (Slot Loading) model is USB bootable - not all iMacs are, hence the need to check. However, whether you will be able to do that will depend upon the drive itself.

One way to check - try it. With the Mac booted to its current OS, and the OS 9 Install CD in the drive and mounted on the desktop, see if you can select it in Startup Disk control panel. If you can, do so, then restart.

Booting to USB is extremely slow, especially so for a CD. The OS runs slow enough even from a USB hard drive that it may not be usable as a regular boot drive. If you plan to use OS 9 as your customary OS, it would be far better to install it on the internal hard drive instead of on a USB drive.

Apr 16, 2007 2:10 PM in response to Don Archibald

Don,

With . . . the OS 9 Install CD in the drive and mounted on the desktop, see if you can select it in Startup Disk control panel.

when i click on the OS 9 icon ("Classic Startup") in the control panel, i get the message "Cannot find a Mac OS 9 system folder on the startup disk to use." (actually, first i have to double-click the Mac OS Install icon from the Install CD to get that OS 9 icon in the control panel - and i first get that message then as well.)

when i installed Tiger, the reason i did not opt for the installation method that included - (that kept) - Classic was that there was not enough room on my computer. hence, the external HD.

is there any benefit to copying the OS 9 installation Disk onto my computer in solving this problem?

thanks.

Apr 16, 2007 3:41 PM in response to korgy

Hi, korgy -

is there any benefit to copying the OS 9 installation Disk onto my computer in solving this problem?

No - doing so will not serve any purpose.

when i click on the OS 9 icon ("Classic Startup") in the control panel, i get the message "Cannot find a Mac OS 9 system folder on the startup disk to use." (actually, first i have to double-click the Mac OS Install icon from the Install CD to get that OS 9 icon in the control panel - and i first get that message then as well.)

Classic Startup in the control panel is used to start up an install of Classic, for use as Classic while the machine is booted to OSX. Classic = an install of OS 9, one which has been modified by the addition of certain files so that it can be used as Classic. The System Folder on the OS 9 Install CD has not been so modified, and can not be - so it can not be used as Classic. Hence, there is no Classic to start up.

The installer on the OS 9 Install CD can not run in OSX, nor can it run in Classic - it can be run only when the machine is booted to OS 9.

"Startup Disk" control panel (control pane) is not the same as Classic Startup. Look in OSX's System Preferences (Apple menu); there should be a control pane in that set named Startup Disk. It is in that control pane that you would select the CD in the external drive as the boot volume (startup disk). Once you do so, then restart the machine.

If the OS 9 Install CD in the external drive does not appear in Startup Disk control pane, then it would appear that your external drive is not bootable.

Apr 16, 2007 6:51 PM in response to Don Archibald

hi Don -

well, thanks for clarifying he difference between the terms "OS 9" and "Classic", and for straightening me out on where to find the Startup Disk.

however, i think i really screwed myself now. i'm answering on my Dell PC now.

i went to the Startup Disk in the System Preferences, and then found the OS 9 Startup from USB(?) icon (or something like that), and tried clicking it. nothing happened, after several minutes. so, i tried clicking the icon that said "Startup from OS 9 on Hard Drive" (or something like that.) well, i know - at least i thoughti knew - there was no current OS 9 on my Hard Drive, but i thought i'd just see what happened.

so, the computer re-booted, and the OS 9-style icon comes up - the little computer with the face on it - and then the Mac OS 9 opening graphic pops up. after that, an error box pops up that says "The system software on the startup disk only functions on the original media, not if copied to another drive". my only option now is a "restart" button.

so i click "restart", and the same dead-end cycle occurs - the OS 9 graphics come up, and i get the error box with the same message. i try to retart my agan) and the same thing happens - a failed OS 9 boot. i try to eject my OS 9 CD from the external iomega drive (thinking maybe getting rid of that OS 9 CD will force the computer to boot in Tiger again), but i have no way of ejecting the OS 9 CD. any way that i try to restart the computer, it now makes a failed attempt at OS 9, with no option to reboot another way.

let me guess - since i cannot get the Tiger CD into the front loading slot to reboot, i am screwed until i get that other stuck CD out of there. is this correct?

how can i now get my computer back to reboot in OS X - (or <either>, so i can get out of this dead-end loop)?

defeated,

korgy

Apr 16, 2007 11:45 PM in response to korgy

Hi, korgy -

"The system software on the startup disk only functions on the original media, not if copied to another drive"

That message is usually returned when an OS 9 System Folder has been copied from an OS 9 Install CD to the hard drive. That System Folder contains some non-standard files, files which allow it to boot any Mac capable of running that OS; unfortunately, in this case the message is literally true - if that System Folder is copied to other media, it will not be usable to boot the machine.

how can i now get my computer back to reboot in OS X

Try restarting, then immediately press the X key, keep it held down until the Mac begins to boot to OSX. This is a startup command to the Mac to boot to the first OSX it finds.

As an alternate method, restart, then immediately press and hold down the Command-Option-Shift-Delete keys (that's the large Delete key two rows above the Return key), keep them held down until the Mac begins to boot to OSX. This startup command instructs the Mac to skip the OS set as boot OS in PRAM and boot to the next usable OS it finds.

In either case, once it has finished booting to OSX, go back into Startup Disk control pane and re-select OSX as the boot OS; if you don't do that, it will continue to try to boot to the non-valid OS 9 System Folder on subsequent boots.

***

There is a startup command to force the Mac to eject all removable media - restart or boot, then immediately press the mouse button, keep it held down until the CD pops out. I've not tried that with an external drive, but I believe it should work for that.

Apr 17, 2007 6:47 AM in response to Don Archibald

Don, thanks for your help.

i tried rebooting my computer with the "x" down (several times) with no success - same failed OS 9 attempt.

i also tried using the command configuration you suggested. here is what happens: i get a flashing folder-with-questionmark icon, for as long as i hold those keys down. when i release the keys, it goes back to the failed OS 9 boot attempt (described previously).


there was some success - somehow during all this, i was able to eject the OS 9 System startup CD from the external drive. (was not able to eject the built-in slot CD that has been stuck there).

i have removed all externals now, and have the keyboard plugged directly into the Mac.

do you suggest trying to boot the computer from the external drive with my Tiger in it now - to get back to the operable Tiger system?

thank-you.

Apr 17, 2007 7:15 AM in response to korgy

Hi, korgy -

do you suggest trying to boot the computer from the external drive with my Tiger in it now - to get back to the operable Tiger system?

Yes, if it will.

A thought - if you had had the keyboard connected through a hub, that could have interfered with the Mac receiving proper startup commands. And, if the keyboard is a non-Apple one, some of those do not fully conform to Mac startup commands.

Apr 17, 2007 9:15 AM in response to Don Archibald

HI Don -

wow.

well, here's the update:

if you had had the keyboard connected through a hub, that could have interfered with the Mac receiving proper startup commands.

yes, i had tried previously to use those commands with the keyboard hooked directly into the Mac, getting the results listed above. (the keyboard is new - 1 week. the previous keyboard was a Macally. not sure if that ties in...)

anyway, so i tried to startup the computer with the OSX Tiger installation disk #1 using the external Iomega drive, holding down the "C" command - getting the same failed OS 9 attempt.

then, i tried using the command/option/shift/delete command you mentioned before.

first, the OS X Tiger Apple logo appeared. good news! i thought. then, after a while, the rotating gear icon (the OS X "please wait" icon) came up and was spinning. i waited and waited. i finally let go of the keyboard. waited and waited. the external drive was gearing up and then gearing down.

then, the entire computer went dead. like someone shut it down.

now, it's dead. cannot even turn on. neither the front power button, or the side restart button.

i guess that's it till i take it to a shop...(?)

any ideas?

thanks.




Hi, korgy -

do you suggest trying to boot the computer from
the external drive with my Tiger in it now - to get
back to the operable Tiger system?


Yes, if it will.

A thought - if you had had the keyboard connected
through a hub, that could have interfered with the
Mac receiving proper startup commands. And, if the
keyboard is a non-Apple one, some of those do not
fully conform to Mac startup commands.




G3 Mac OS X (10.4.3)

G3 Mac OS X (10.4.3)

how do i install OS 9 onto my OS X (G3 mac)?

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