TITLE
    Mac OS: Upgrading from Older OS Versions
Article ID:
Created:
Modified: 		30152
8/27/97
7/7/00
TOPIC

    The article below lists different options for obtaining various versions of System software, System Upgrades and Mac OS software.

DISCUSSION

    To determine if your computer is supported by a certain OS version, then check one of the following articles from the Tech Info Library:

    Note : Also lists the enabler needed for appropriate computers. These enablers can be downloaded from the Apple Software Archive).

    System 7 & 7.0.1
    Are freely available for download from the Apple Software Archive.

    System 7.1 and Mac OS 7.6
    These are both commercial releases, Apple still has those releases on a single-computer license agreement, and you must purchase one copy per computer that will use it. You cannot download something to upgrade you to these levels.

    You can go directly to System 7.1 or to Mac OS 7.6 by purchasing the respective packages.
    • System 7.1 is a full installation on the computers that do not require an enabler, you would have to add the enabler to the System Folder for the computers that require them. Enablers can be downloaded from the Apple Software Archive.
    • Mac OS 7.6 is a full installation (on the supported computers) that does not require any particular system software version on your drive.
    You can purchase Mac OS 7.6 from your local Apple-authorized reseller, authorized mail-order resellers, or direct from Apple.

    Note: Certain computers cannot use Mac OS 7.6, so you must purchase the Mac OS 7.6.1 full version from Apple Software Order Center. Please see TIL article number 26170: Where to get Mac OS 7.6 and 7.6.1 for more information.


    System 7.5.3
    System 7.5.3 is available for download from Apple Software Updates sites.

    System 7.1 is no longer on the finished goods price list, however you may still be able to purchase it through computer retailers specializing in refurbished equipment.


    Software Updates

    Most updates mentioned here are available by searching the Apple Software Updates web site at http://www.apple.com/swupdates .

    Any version of System 7.1.x can be updated to System 7.1.2 by downloading the System Update 3.0. It is one 1.4 MB disk image, or two 800k images.

    Any earlier version of System 7.5 can be updated to System 7.5.3 by downloading the System 7.5 Update 2.0, and if desired, continue on to System 7.5.5 (the System 7.5.5 Update only works to update System 7.5.3).

    If you do not chose to go to System 7.5.5, you should download the System 7.5.3 Revision 2 update. These are all multiple disk image updates, with a single net install download option available as well. You do not need to apply the Rev 2 update if you are going to move up to System 7.5.5.

    Mac OS 7.6 can be updated with the Mac OS 7.6.1 Update.

    This article can help you locate the software updates mentioned here:


Document Information
Product Area: Mac OS System Software
Category: General OS
Sub Category: General Topics

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