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Re: version 1.25, ddrescue.info near line 1622


From: Antonio Diaz Diaz
Subject: Re: version 1.25, ddrescue.info near line 1622
Date: Wed, 28 Aug 2024 15:57:33 +0200
User-agent: Mozilla/5.0 (X11; U; Linux i586; en-US; rv:1.9.1.19) Gecko/20110420 SeaMonkey/2.0.14

Hi Winston,

Winston wrote:
Near line 1622 in the ddrescue.info that came with version 1.25,
near the end of section 15 Ddrescuelog, is:

  ddrescuelog -l- -b512 -i63s -o0 -s767457s -b4096 mapfile>  badblocks1
  ddrescuelog -l- -b512 -i767520s -o0 -s96520s -b4096 mapfile>  badblocks2

Both -b512 and -b4096?  I'm not seeing anything in the description of
"-b" that suggests having both is useful.  The example either needs
fixing or a comment saying why both.

The description of the example gives a clue:

  Disc sector size is 512, file system block size is 4096. [1]

But I certainly need to explain in the manual that -b is position dependent. The first -b sets the sector size for options -i, -o, and -s, while the second -b sets the block size for the badblocks list.

Thank you very much for reporting this.

[1] http://www.gnu.org/software/ddrescue/manual/ddrescue_manual.html#Ddrescuelog

Best regards,
Antonio.



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