Re: Recovering from bad disk ...

Dan Shoop <[email protected]>
Newsgroups gmane.comp.macosx.admin
Message-ID <[email protected]>
On Mar 10, 2011, at 11:02 AM, Ashley Aitken wrote:

> 
> Hi All,
> 
> How ironic, with regards to all this discussion, that the original disk now verifies OK.  Of course, I don't know what that means with regards to the previous errors (I didn't run a Repair again after the last problematic output it gave).

So glad to hear this!

> I am moving the data to a new disk.  In fact, I have used DU to restore from the problematic partition to a partition on a new larger disk, and CCC to rsync copy from the problematic partition to another partition on the new disk.  Not 100% sure which one to use?
> 
> It would be nice to be able to compare these partitions (either both new ones or either new one and the old problematic one) and get some sort of summary of differences (specifically with regards to data differences, not storage mechanism differences).

This is what Backup Bouncer does. It compares source and target copies after "backup" or "clone" operations and 

As for using hfsdebug, especially the original tool, it's not been updated for some time and isn't accurately reporting some things that are going on in OS X 10.6. That's not to say it's not working, it just isn't aware to report accordingly. 

-d

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Dan Shoop
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