How do I repair a Snow Leopard disk?

I followed the instructions to download the DiskRecovery Assistant to install on a thumb drive only to discover that I cannot use this with Snow Leopard 10.6.8.  My disk needs repairing NOW and Software Update says my OS X is up to date.  I cannot get a strong recommendation to install Lion on this older MacBook Pro2.2 as Apple does not say it is appropriate for this hardware.

rstark1 wrote:
I cannot get a strong recommendation to install Lion on this older MacBook Pro2.2 as Apple does not say it is appropriate for this hardware.
I agree totally.
My disk needs repairing NOW and Software Update says my OS X is up to date.
Before you do anything, do you have a copy of your personal data off the machine on a external storage drive? (not TimeMachine for now)
Do that first, then whatever happens your data is fine. Disconnect the drive.
Most commonly used backup methods
Next follow through these Steps to fix your machine or find out what's the problem.
Step by Step to fix your Mac

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