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I have an Apple G5 with OSX 10.3 and I'm trying to upgrade to 10.5. I'm getting the error: "Missing bill of materials".

I'm relatively new to Macs so I may not be providing all the relevant information here.

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The “bill of materials” is most likely referring to a .bom file used in installable .pkg bundles (and their “receipts” in /Library/Receipts/). I would guess that either your installation media is broken/incomplete or the installation is trying to read one of your existing receipts and finding a missing BOM. The former seems more likely to me, but if it is the latter you might try renaming the Receipts folder to something else (e.g. Receipts-10.3) to try to convince the installer to skip any receipt scanning it might try (though this might break the install(-ation) in other ways). – Chris Johnsen Nov 1 '10 at 19:49
up vote 1 down vote accepted

I would suggest that rather than do an "Upgrade," do an "Archive and Install." At the point in the install process where you select the hard drive, there should be an Options button. Click that and you ought to be able to choose "Archive and Install" with "Preserve Users and Network Settings."

This process will simply give you a new system and won't rely on receipts to determine what items need to be updated.

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