Hello!
2 years ago when I upgraded from 10.5 to 10.6 not all system files were updated to 64-bit files - I still have some old 32-bit files. I have updated some of them successfully.
What is the best way to this? Make a clean install of 10.7, or is there a way to update all files to 64-bit versions?
MacBook Pro, Mac OS X (10.7)
Is there a reason you're looking at this?
Mac OS X 10.6 booted with the 32-bit or 64-bit kernel runs both 32- and 64-bit stuff just fine.
Mac OS X 10.7 boots 64-bit, and also runs both 32-bit stuff and 64-bit applications just fine.
This also ignores images that are built "universal", that contain the executable code for various configurations.
If you have a specific application you're interested in, you'll want to identify it. (If there's a particular reason you need a 64-bit image, you'll also check with whomever provided it.)
The Lion installer replaces all system files, so this is a non-issue.
Replace 32-bit files with 64-bit
