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From: Robert Watson <rwatson@FreeBSD.org>
Date: Wed, 28 Jan 2009 09:33:00 +0000 (UTC)
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Subject: cvs commit: src/sbin/dumpfs dumpfs.8 dumpfs.c
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rwatson     2009-01-28 09:33:00 UTC

  FreeBSD src repository

  Modified files:
    sbin/dumpfs          dumpfs.8 dumpfs.c 
  Log:
  SVN rev 187814 on 2009-01-28 09:33:00Z by rwatson
  
  Add a new flag to dumpfs(8), -f, which causes dumpfs to list all free
  fragments in the file system by fragment (block) number.  This new
  mode does the necessary arithmetic to generate absolute fragment
  numbers rather than than the cg-relative numbers printed in the default
  mode.
  
  If -f is passed once, contiguous fragment ranges are collapsed into
  an X-Y format as free block lists are currently printed in regular
  dumpfs output, but if specified twice, all block numbers are printed
  individually, allowing both compact and more script-friendly
  representation.
  
  This proves quite handy when attempting to recover deleted data, as it
  allows exclusion of non-deleted data from blocks searched.
  MFC after:      1 week
  Discussed with: jeff, Richard Clayton <richard dot clayton at cl.cam.ac.uk>
  Sponsored by:   Google, Inc.
  
  Revision  Changes    Path
  1.17      +14 -2     src/sbin/dumpfs/dumpfs.8
  1.45      +68 -5     src/sbin/dumpfs/dumpfs.c