My 2 cents :

What would constitute an "empty" part ? Sometimes, blocks filled with 00 or FF or any value may be legitimate parts of a file. To know which blocks are really used for files, ddrescue would have to analyse the filesystem allocation and, at least to me, that seems to disrupt the idea of cloning the disk.




----- Original Message ----- From: "Antonio Diaz Diaz" <[email protected]>
To: "Cameron Andrews" <[email protected]>
Cc: <[email protected]>
Sent: Wednesday, January 25, 2017 11:11 AM
Subject: Re: [Bug-ddrescue] Slow reads for x time to exit and whitespace skipping


Hi Cameron,

>
Skipping the empty parts of the drive will have to wait until 1.23. I also will need more feedback about how should ddrescue decide if a block is empty.

Thank you very much for your donation.


Best regards,
Antonio.


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