How do I "segregate" bad sectors on my hard drive so OSX won't access them?

I have a bad section on one of my hard drive partitions.
Is there a way to scan the disk, identify the bad sectors, and not use those areas for data storage?
Thanks
Len

I don't think it's worth it. Hard drive technology automatically remaps bad sectors to an internal set of spare sectors. Only when that remap buffer overflows do you start to get write errors to bad sectors (read problems are a different story, as the drive diagnoses the problem and will give back corrupted data even if it's remapped).
What this means that if the drive has started showing bad sectors, it has become highly unreliable and will die imminently. I'd reccomend backing up all of the data you have, and either having applecare replace your hdd or buy a replacement online and follow the instructions on removing your hard drive (see www.ifixit.com) from your ibook, reinstall OSX etc.
If you absolutely must continue using that drive, you can try the program suggested, but in all likelyhood more bad blocks will keep occuring, forcing reinstalls of software, lost data, failure to boot properly etc.
Phil

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