[echinoderm]

Hi. We had major storms come through last night complete with a extended power failure to the house. Ever since then, I have not been able to boot my Mac Mini. I get a folder with a '?' in it after the system start sound during power on.

The reason I am posting is I am pretty sure SD was running at the time. So following the Troubleshooting section in the UG, I invoked Disk Utility off my Install Disk and did a 'Repair Disk' on my Macintosh HD, my normal startup drive. I get the following error:

Repairing disk failed with error
Could not unmount disk

Any ideas? I fear I was in a critical state in SD at the time of the failure and things are slightly off preventing the boot to proceed from my source disk.

Thanks