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Mac OS 9.2.1 Universal

Your rating: None Average: 4.5 (11 votes)
Year released:
[www].se [ftp].se [mirror].us [mirror].de (398.49 MB)
MD5: ace572ad7f108e05fdd4af834d09782e
For Mac OS 9
Guides on emulating older applications

This is a Bootable Universal install CD for Mac OS 9.2.1, US English.

The archive is a .zip compressed .iso image. It is OK to burn this back to CD using ImgBurn on Windows or Disk Utility on Mac OS X (or Toast). This archive has been extensively tested as working, prior to uploading.

MD5sum & filename: ace572ad7f108e05fdd4af834d09782e *
Extracted from the .zip, the .iso should have:
MD5sum & filename: 84e84218e2b8c3e06ae5ae28c82db93f *macos-921-uni.iso

See Also: the International English Mac OS 9.2.1 Install CD.

Architecture: PPC

You can install from this CD onto any of the following computers: Power Mac G4, Power Macintosh G3, PowerBook G4, PowerBook G3 (except the original PowerBook G3), iMac, and iBook.

I assume that when the above compatibility rating was written there are newer G4's this will not boot up and install to. For example; the Mirror Door G4 & G4 eMac or any late model G4 that shipped with either Mac OS 9.2.2 or can run 9 in Classic mode only.


fogWraith's picture
by fogWraith - 2020, October 9 - 7:49pm

Burns and boots fine here, tried it in QEMU before that, boots and installs fine there too.

SpektrumSP's picture
by SpektrumSP - 2020, October 9 - 6:10pm

Looks like it's impossible to mount or burn into CD

MikeTomTom's picture
by MikeTomTom - 2018, March 4 - 12:39am

tried to burn it with imgburn aswell.. another coaster for the trashbin.

Well it boots up just fine here on a beige G3 - the only Mac I have left that can boot earlier than 9.2.2, these days (tho' I recall installing to a Quicksilver G4 at some stage).

Burned it to CD-RW using ImgBurn. Burned fine and boots up the G3 just as fine - and that's with RW CD!

Don't know what you're doing to produce coasters or failing to use this, but I tested this ISO as working before uploading it here and again just now from downloading and testing it all over again.

This disk will also boot to those Mac's you've mentioned, so I can't suggest anything further, other than it works OK for me. - Maybe investing in some CD-RW's may help alleviate some of the duds you're getting.

Unless you specifically want 9.2.1 you could also try the Universal 9.2.2 install disk. It will boot and install OK to those Macs of yours. Note tho', I also prepared and uploaded that ISO too.

supernova777's picture
by supernova777 - 2018, March 3 - 11:40pm

i tried to burn it with imgburn aswell.. another coaster for the trashbin. it burns fine but the cd doesnt even boot on either my sawtooth machine or my b+W g3.. so i dont know what macs u are trying to boot it on but its not booting on my machines

MikeTomTom's picture
by MikeTomTom - 2018, March 3 - 10:24pm

who created this cd?

I did. Use ImgBurn if you want to burn Mac CD's on Windows OS's.

I downloaded the above to test. MD5 checksums matched what's above and the ISO burns fine for me on Windows using ImgBurn.

sfp1954's picture
by sfp1954 - 2018, March 3 - 10:21pm

There are also copies here in my library.

supernova777's picture
by supernova777 - 2018, March 3 - 10:05pm

who created this cd? just downloaded this and tried to burn the .iso on a windows 7 machine and it complains and says "the selected disc image file isn't valid" and Windows Disc Image Burner refuses to burn it macos-921-uni.iso - file is dated june 10th 2014 578,422kb will not burn!