After upgrading to Lion can't get Boot Camp to work! Just get "startup dusk cannot be portioned or restored to a single partition"?

After upgrading to Lion can't get Boot Camp to work! Just get "The startup disk cannot be partitioned or restored to a single partition". Anytone?

This message, and threads like yours got asked daily for over two years, now it is only a couple times a week!!
Is it so hard to follow through? you were to have backup already, clones are best, then erase/format and restore.
Then partition.
Some have been able to use Disk Utility booted from OS X DVD or another drive, and repair the drive.
You have to use Boot Camp Assistant (99.9% anyway) to create and achieve a proper Windows Master Boot Record partition.

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    Does [this firmware update|http://www.apple.com/downloads/macosx/apple/firmware_hardware/imacefifir mwareupdate13.html] apply to your machine? If so, putting it on may fix the boot from DVD problem.

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