This page is a wiki. Please login or create an account to begin editing.

• Mac Os 9.1 Install Disc Download Iso
• Mac Os 9.1 Install Disc Downloads
• Download Mac Os 10 1
• Install Discord

The Mac OS 9.1 update delivers additional support for Multiple Users and iTools services, and Sherlock 2 has a new channel Entertainment, making it easy to find movie reviews or your favorite song.

Rating:
Category:
Year released:
Author:	Apple
Publisher:	Apple

Mac OS 9.1 is the update for Mac OS 9.0.x users. It includes some stability to Finder, added Window menu, security enhancements, and more. This page contains downloads for Mac OS 9.1 series (with model-specific installers).

See also: Mac OS 9.x (Integrated Download Page), Mac OS 9.0.x, Mac OS 9.2.1 Universal, Mac OS 9.2.2 Universal

1. Machine-Specific Installers

Mac OS 9.1

MacOS91CD.ZIP: Mac OS 9.1 Retail CD-ROM image.MD5 Checksum: 232B183883D5ECD4952014D58CE2B85DMacOS91CD_DE.ZIP: Mac OS 9.1 Retail CD-ROM image. (German)MD5 Checksum: 7C9068B53853697AA8EAABFD9FF84CC6MacOS91Updt_WW1.ZIP: Built CD image containing worldwide Mac OS 9.1 Update disk images in French-Universal, German, International English, Italian, Japanese, Spanish, and Swedish. Also included is the USA English. Not available separately, you have to download them all insteadMD5 Checksum: 5627D5F395F7FA50FB406E02F6FFB814MacOS91Updt_WW2.ZIP: Built CD image containing worldwide Mac OS 9.1 Update disk images in Danish, Dutch, Finnish, Korean, Norwegian, Portuguese-Brazilian, Simplified Chinese, and Traditional Chinese. Not available separately, you have to download them all insteadMD5 Checksum: E46C572964465E21F0F747DA4799049D

International Mac OS 9.1

Mac Os 9.1 Install Disc Download Iso

See also: Mac OS 9.1 (French), Mac OS 9.1 (German), Mac OS 9.1 (Italian), Mac OS 9.1 (Swedish) PowerBook G4 400/500

Mac OS 9.1 Internal Edition CD-ROM

This is the Mac OS 9.1 CD-ROM special edition provided by Apple IS&T for internal use only. It includes the base Mac OS 9.1 installer with the guided way to install (such as unlocking disks, check drive using Norton Disk Doctor, etc.) as well some extra goodies that were exclusively available internally for Apple employers such as Apple software like Apple DVD Software 2.5.1 and QuickTime 5.0, several site licensed software such as Acrobat Reader 4.05a, Microsoft Office 2001, Norton Antivirus 7.0, and Norton Utilities 6.0, and other nice software.MacOS91_Internal.ZIP: Mac OS 9.1 Internal Edition CD-ROM image.MD5 Checksum: 5F73BB6E569A3D83681B0E38CEE0E330

Machine-Specific Installers

iBook 500 Dual-USB

See Also: Mac OS 9.1 + X 10.0.3 (iBook 500 Dual-USB)

iBook G3 Series

This is the restore CD of iBook, came with Mac OS 9.1 and other programs, all in one hard disk image, which to restore from it's original form and contains bundled software like iMovie 2.0.3, AppleWorks 6.0.4, iTunes, FAXstf, Adobe Reader, and more. This will work for any iBook computers.iBookG391CD_Rest.ZIP: iBook G3 Series restoration CD-ROM v1.1 image. (Mac OS 9.1)MD5 Checksum: CE07B1AC5E8BEFA689E03192BF466F10iBookG391CDDE_Inst.ZIP: iBook G3 Series installation CD-ROM image. (Mac OS 9.1 German)MD5 Checksum: 620066B4ABD13E7C92750F584C4D85EEiBookG391CD_Apps.ZIP: iBook G3 Series applications CD-ROM image.MD5 Checksum: 3202C302459426E45A2A0167B8E90B02

iMac Summer 2000 DV Series

This is the install CD of iMac Summer 2000 DV. It includes the Mac OS 9.1 with Mac OS ROM 7.5.1 installer and some application installers like AppleWorks 6 and iTunes.iMacS200091CD_Inst.ZIP: iMac G3 Summer 2000 DV installation CD-ROM v1.2 image. (Mac OS 9.1)MD5 Checksum: 2A260DABF3845A862C479FC1BD632265

iMac Early 2001 Series

Install & Restore CDs of Mac OS 9.1 for iMac G3 Early 2001 Series (Indigo/Flower Power/Blue Dalmation). The restore image includes the base Mac OS 9.1 with AppleWorks 6.0.4, iMovie 2.0.3, Quicken 2001 Deluxe 10.0.1 and more. Later versions of restore image also includes Mac OS X 10.0.3.iMacE200191CD_Inst.ZIP: iMac G3 Early 2001 installation CD-ROM image. (Mac OS 9.1)MD5 Checksum: 4AD75ED58386F802C90F9411100E4F69iMacE200191CD_Rest.ZIP: iMac G3 Early 2001 restoration CD-ROM image. (Mac OS 9.1)MD5 Checksum: 345154E169A6F6E17457B599E2966C22iMacE200191CDDE_Inst.ZIP: iMac G3 Early 2001 installation CD-ROM image. (Mac OS 9.1 German)MD5 Checksum: BD839AE3F50449C2A10E234C11F4AA43iMacE200191CDv13_Inst.ZIP: iMac G3 Early 2001 installation CD-ROM v1.3 image. (Mac OS 9.1)MD5 Checksum: 9DBDE06D9B9C45F22F0E5B0CD0A7533FiMacE200191CDv11_Rest1.ZIP: iMac G3 Early 2001 restoration CD-ROM Disc 1 v1.1 image. (Mac OS 9.1 + Mac OS X 10.0.3)MD5 Checksum: 96654F397BB4674F263FE37687176C40iMacE200191CDv11_Rest2.ZIP: iMac G3 Early 2001 restoration CD-ROM Disc 2 v1.1 image. (Mac OS 9.1 + Mac OS X 10.0.3)MD5 Checksum: 5AA7DFE7331C78E7781F9E57485B6BA5iMacE200191CDv11_Rest3.ZIP: iMac G3 Early 2001 restoration CD-ROM Disc 3 v1.1 image. (Mac OS 9.1 + Mac OS X 10.0.3)MD5 Checksum: 88D003E1ED7A10AAFDC1F4E329020CC5iMacE200191CDv11_Rest4.ZIP: iMac G3 Early 2001 restoration CD-ROM Disc 4 v1.1 image. (Mac OS 9.1 + Mac OS X 10.0.3)MD5 Checksum: ABFCFC5D225D138623E1B8E63B3554FCiMacE200191CDv11_Apps.ZIP: iMac G3 Early 2001 applications CD-ROM v1.1 image.MD5 Checksum: 6D76C098623F97A5489AE703A8A705D3

Power Mac G4 Digital Audio

Install & Restore CDs of Mac OS 9.1 for Power Macintosh G4 Digital Audio.PMG4DA91CD_Inst.ZIP: Power Mac G4 Digital Audio installation CD-ROM v1.2 image. (Mac OS 9.1)MD5 Checksum: 9D9176E02AB99C9FC6BDE484595929FDPMG4DA91CD_Rest.ZIP: Power Mac G4 Digital Audio restoration CD-ROM v1.2 image. (Mac OS 9.1)MD5 Checksum: 323F98034AAB0E5A29BDBB9EE35BF422PMG4DA91CDDE_Rest.ZIP: Power Mac G4 Digital Audio restoration CD-ROM v1.0.1 image. (Mac OS 9.1 German)MD5 Checksum: B597110624B4B9D1802259F829824051Compatibility
Architecture: PPC

Mac OS 9.1 and later could not boot successfully on SheepShaver because it lacks a memory management unit (MMU). However, there are some ways to get 9.1 working on SheepShaver by hacking the System file or replacing the System file from Mac OS 9.0.4 and changing version number to 9.1 using ResEdit, but this may result in system instability.
If you are running a PowerBook 3400c, use the update without updating hard disk drivers.
For PowerBook 1400s, Password Security is not supported.
For 20th Anniversary Mac, disable Virtual Memory.
For Power Macintosh 6100/7100/8100, you need to install from the CD version, updating from 9.0.x is not supported.
Also, a Power Mac 61/71/8100/9150 with a third-party accelerator card will not install Mac OS 9.1.

So with the recent turning of the calendar, I looked at my Tiger and OS 9 install discs and it occurred to me they're getting on in years and very far from invincible. Time to make backups, I thought. So I fired up my burning app of choice, Burn.app, and made quick copies thinking I was done. Unfortunately I got a nasty surprise when I went to boot my iBook with the OS 9 copy to fix Debian's notorious disappearing partitions bug and found it unbootable. The Tiger DVD copy booted fine. It was only the OS 9 CD that was blurgged.
Okay, I thought, there's something wrong with the way Burn copies OS 9 discs. I'll just fire up Disk Utility and do it that way. One burned disc later and, crap, that won't boot either. So after googling this a bit and filtering out forum posts responding to questions saying, 'Google it!' it appears the only way to burn a bootable OS 9 disc is with Toast. I tried it with my ancient copy of Toast 4.1.1 (that was a good year) which still runs in 9.2.2 and can confirm it works. The procedure is simple. It just takes a quick read through of the documentation to get it. I did not investigate whether you can do this with an OS X copy of Toast.

Mac Os 9.1 Install Disc Downloads

I'm still a bit clueless as to why the earlier copies were unbootable. They both had the correct file systems and had the hidden Trash and Desktop Folders. So I don't know.

Download Mac Os 10 1

Install Discord

This vexes me. I'm terribly vexed.