Looks like my information was old. Version 4 couldn't do it (even after they 
claimed it would); version 5 apparently handles it well. Guess I stopped trying 
it after version 4 yelled at me.

Another source 
<https://www.finetunedmac.com/forums/ubbthreads.php?ubb=showflat&Number=25692&Searchpage=1&Main=3008&Words=%22DiskWarrior+and+Time+Machine%22&Search=true#Post25692>
 says: 

> SuperDuper will make a file-level copy, handling multi-linked files 
> correctly, and will produce a copy without catalog damage even if the source 
> has catalog damage. (But if the source catalog is damaged, the copy may not 
> finish, and even if it finishes the new copy may have other non-catalog 
> inconsistencies that make it unusable.)

You may want to try that, especially since I think it has a free trial.


> On Jan 23, 2020, at 4:21 PM, Matt Penna <[email protected]> wrote:
> 
> I’m curious about this because DiskWarrior works fine for me on Time Machine 
> volumes (but I’ve never tried it on a Time Machine sparsebundle).
> 
> The only trouble I had with DiskWarrior on Time Machine drives was when it 
> was a 32-bit app and could not allocate enough memory to hold all the file 
> system structures—a showstopper with my Time Machine drive that at the time 
> had a 17GB B-tree and that definitely would not fit into the 4GB 32-bit RAM 
> limit.
> 
> Since going 64-bit in late 2014, DiskWarrior should work on all Time Machine 
> volumes.
> 
> In an ironic reversal with modern Macs, DiskWarrior can now ONLY work on Time 
> Machine drives; APFS-formatted drives drives are not supported with current 
> versions of DiskWarrior and Time Machine drives are still HFS+. (Alsoft says 
> DiskWarrior APFS support is coming soon, now that technical specs for the 
> file system have been finalized, though APFS is ostensibly robust enough to 
> not need much fixing. I know, I know…)
> 
>       Matt
> 
>> On Jan 23, 2020, at 1:39 PM, Macs R We <[email protected]> wrote:
>> 
>> Although all of this is true, as it turns out, I know of only one disk 
>> management tool that will even attempt to repair a Time Machine volume, 
>> because the volume architecture is so baroque -- and that is Disk Utility. 
>> If you try to repair the volume with Disk Warrior, it will flat out tell 
>> you, "this is a Time Machine volume, and I don't do those." You have to use 
>> only Disk Utility, not fsck. If DU can't solve the problem, it can't be 
>> solved.
>> 
>>> On Jan 23, 2020, at 11:31 AM, Matt Penna <[email protected]> wrote:
>>> 
>>> On Jan 23, 2020, at 1:25 PM, Michael <[email protected]> wrote:
>>>> 
>>>>> On 2020-01-23, at 10:23 AM, Matt Penna <[email protected]> wrote:
>>>>> 
>>>>> If you have DiskWarrior, I would give that a try. I believe it works on 
>>>>> disk images and sparsebundles.
>>>>> 
>>>>>  Matt
>>>> 
>>>> I do not have disk warrior.
>>> 
>>> Unfortunately, whenever a drive or image is not reparable like this, I’ve 
>>> always had to resort to a 3rd-party tool to fix the file system; the 
>>> built-in tools are not very robust. Perhaps someone else will have another 
>>> suggestion.
>>> 
>>> It’s always been baffling to me that 3rd parties write better fix-it tools 
>>> than the people who write the OSes. This has been a problem for over 30 
>>> years and it’s still as unsolved as ever, even if the file systems are a 
>>> lot less fragile than they used to be.
>>> 
>>>  Matt
>>> _______________________________________________
>>> MacOSX-talk mailing list
>>> [email protected]
>>> https://www.omnigroup.com/mailman/listinfo/macosx-talk
>> 
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> 
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-- 
  Macs R We -- Personal Macintosh Service and Support
    in the Wickenburg and far Northwest Valley Areas.
                            http://macsrwe.com

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