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  #1  
Old 02-16-2012, 02:41 AM
Handyman Handyman is offline
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Smart backup fails after repairing backup drive

Yesterday I ran Disk Utility to repair my external USB drive, which I use for Time Machine and SuperDuper backups. (there were lots of issues found...) Note: this was a disk repair, not a permissions repair.

Today my first SuperDuper smart backup (since yesterday's repair) failed. Here are the last two lines of the log:

Code:
| 10:25:56 PM | Error | SDCopy: Error deleting /Volumes/Iomega_320/lost+found/dir_377244
| 10:25:56 PM | Error | : Operation not permitted
How should I go about fixing this problem? Thanks.
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Old 02-16-2012, 09:51 AM
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dnanian dnanian is offline
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Looks like the drive had been damaged and now has some bogus data on it. I'd do an erase-then-copy backup (since we can't remove those damaged files).
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Old 02-16-2012, 03:39 PM
Handyman Handyman is offline
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Thanks for the reply.

Since I also have my Time Machine backups on this drive, which an erase would delete, I decided to use the "rm" command (with appropriate switches) to delete the lost+found folder in a command shell.

A subsequent smart copy worked fine. Thanks again.
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Old 02-16-2012, 03:51 PM
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OK. I'm rather concerned that if the drive was that damaged, that relying upon any Time Machine backups on the same drive is sketchy at best...
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Old 02-16-2012, 03:58 PM
Handyman Handyman is offline
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That's good to know.

Should I replace the drive? Or should I just replace my TimeMachine backups?

Disk Utility found a bunch of problems, but it fixed them, and now it reports none at all... not sure how much faith to put in that however.
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Old 02-16-2012, 04:03 PM
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Well, I have no idea what went wrong, so I can't suggest replacing the drive. But starting over (erasing the drive) seems sensible, as long as you don't need the history (and, since these things are pruned, and it's not an 'archive', that's often a reasonable thing to do).
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Old 02-16-2012, 04:14 PM
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I'm normally very careful with the external drive, especially while its running, but during the last backup it got pulled to the (carpeted) floor from the couch, an 18" drop, DURING a backup... not good, I know...

I guess I'll reformat it and run a repair frequently, watching for errors.
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Old 02-16-2012, 04:48 PM
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Ooof, seriously? That's not good. Well - at the slightest sign of a failure, I'd replace the drive.
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