Error -127 when trying to upgrade System 9.1 to 9.2.1

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Error -127 when trying to upgrade System 9.1 to 9.2.1

I am trying to upgrade a Beige G3 Powermac, currently running System 9.1, to System 9.2.1 and then System 9.2.2. I have 96 MB of memory and over 5GB of free disk space. I downloaded the 9.2.1. upgrade from another machine, burned it to a CD, and then doubleclicked the 9.2.1 icon on the CD. I specified a new destination folder on my hard disk; StuffIt began decompressing 9.2.1; and then, when the decompression was finished or nearly finished, the useless error appeared:
The disk "MacOS 9.2.1 Update" cannot be used, because an error of type -127 occurred.
Successive iterations of the same procedure failed. Any suggestions?
This G3, I hope, is more hospitable to old files that I need to restore than a new machine would be.

Beige G3, Mac OS 9.1.x

Posted on Jul 5, 2010 1:46 AM

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Answer 1

Jul 5, 2010 2:38 AM in response to Skepto12

Hi, Skepto12 -

That error is most commonly caused by Stuffit Expander intruding where it should not. The download is in a .smi (self-mounting image) format, a format generated by Apple's Disk Copy. Stuffit Expander has ShrinkWrap technology built-in, which allows it to mount some kinds of disk images - but not .smi ones. Yet ShrinkWrap tries to - hence the error message.

The solution - double-click Stuffit Expander, and open its Preferences (under the File menu). Select "Disk Images" from the list on the left, then turn off (uncheck) "Mount Disk Images". Quit Stuffit Expander.

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