Re: Questions about binary deltas and an internal error

On 14/03/2023 03:16, John Goerzen wrote:
> Hi Denis,
> 
> Thank you for looking into it!  I have one question:
> 
[...]
> 
> I'm not sure if this is at all practical for my use case, but does this
> imply that if somehow I transport an isolated catalogue along with the
> backup, dar -x -A would do the right thing in sequential read mode?

Yes, this works, I could restore a full and differential backup having a 
delta patch:

dar -x - --sequential-read -A isolated_catalogue ... < backup.1.dar

This explains by the fact that once the catalog is loaded into memory 
(from isolated_catalogue.1.dar file) the base CRC are known and 
sequentially reading the backup to be restore, starts knowing the 
information that was missing else.

> 
> - John
> 

Cheers,
Denis