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Old 02-03-2012, 03:29 AM
delangea delangea is offline
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Unhappy I/O error during restore from sparse image

Hi! I'm trying to restore a smart-updated sparse image to an erase (and disk-utility checked and repaired) partition.
Both the OSs (the backup disk where the sparse image resides and the clean partition) are on Lion, installed on an other disk/partition.
I've tried it 3 times, every time, about 3 hrs in, I get a fail: Cannot restore, I/O error. Since this is under Disk Utility, I do not know how to access the log ti find what the actual problem is (and SD is not running).
What do I need to do?
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Old 02-03-2012, 08:25 AM
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dnanian dnanian is offline
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Why did you have to restore in the first place? Were you having drive problems on the internal? (I ask because reformatting and 'checking' with Disk Utility doesn't really affect low-level disk issues, and it doesn't really 'test' the drive.)
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Old 02-03-2012, 10:24 AM
delangea delangea is offline
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Hi Dave,
I need a restore to a second machine to have a 'standby' solution. I have now found that the source drive can not be fixed by DU. I have copied the sparse images elsewhere, am reformatting the source drive, will copy back and try again. It is surprising, though, that SD finds fault with a drive when it needs to restore from it, not with the same drive when it is smart updating a sparse image to it. But that remark may well be based on my ignorance as to the deeper process?
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Old 02-03-2012, 10:35 AM
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dnanian dnanian is offline
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It may be that the drive failed after the copy, or something happened to the image...
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Old 02-03-2012, 10:40 AM
delangea delangea is offline
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Or that the drive was still being shared by another computer?
I've switched off everything I do not need for the process, after I gfound that I could not eject the source drive (to run Disk Warrior), due to still being shared.
I've run DU again and now it does not register any problems. I will try the restore again.
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Old 02-03-2012, 10:44 AM
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dnanian dnanian is offline
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Make sure you repair the image, not just the 'host' drive.
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