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RedHat 9 (Linux i386) - man page for mkzftree (redhat section 1)

MKZFTREE(1)				  H. Peter Anvin			      MKZFTREE(1)

NAME
       mkzftree - Create a zisofs/RockRidge compressed file tree

SYNOPSIS
       mkzftree [OPTIONS]... INPUT OUTPUT

DESCRIPTION
       Takes  an input file tree (INPUT) and create a corresponding compressed file tree (OUTPUT)
       that can be used with an appropriately patched mkisofs(8) to create a transparent-compres-
       sion ISO 9660/Rock Ridge filesystem using the "ZF" compression records.

       -f, --force
	      Always compress all files, even if they get larger when compressed.

       -z level, --level level
	      Select compression level (1-9, default is 9).  Lower compression levels are faster,
	      but typically result in larger output.

       -u, --uncompress
	      Uncompress an already compressed tree.  This can	be  used  to  read  a  compressed
	      filesystem on a system which cannot read them natively.

       -p parallelism, --parallelism parallelism
	      Compress in parallel.  The parallelism value indicates how many compression threads
	      are allowed to run.

       -x, --one-filesystem
	      Do not cross filesystem boundaries, but create directory stubs at mount points.

       -X, --strict-one-filesystem
	      Do not cross filesystem boundaries, and do not  create  directory  stubs	at  mount
	      points.

       -C path, --crib-path path
	      Steal  ("crib") files from another directory if it looks (based on name, size, type
	      and modification time) like they match entries in the new  filesystem.   The  "crib
	      tree"  is  usually the compressed version of an older version of the same workload;
	      this thus allows for "incremental rebuilds" of a compressed filesystem  tree.   The
	      files  are  hardlinked from the crib tree to the output tree, so if it is desirable
	      to keep the link count correct the crib  path  should  be  deleted  before  running
	      mkisofs.	The crib tree must be on the same filesystem as the output tree.

       -l, --local
	      Do not recurse into subdirectories, but create the directories themselves.

       -L, --strict-local
	      Do not recurse into subdirectories, and do not create directories.

       -F, --file
	      Indicates that INPUT may not necessarily be a directory; this allows operation on a
	      single file.  Note especially that if -F is specified, and INPUT is a symlink,  the
	      symlink itself will be copied rather than whatever it happens to point to.

       -s, --sloppy
	      Treat  file  modes,  times and ownership data as less than precious information and
	      don't abort if they cannot be set.  This may be useful if  running  mkisofs  on  an
	      input tree you do not own.

       -v, --verbose
	      Increase the program verbosity.

       -V value, --verbosity value
	      Set the program verbosity to value.

       -q, --quiet
	      Issue no messages whatsoever, including error messages.  This is the same as speci-
	      fying -V 0.

       -h, --help
	      Display a brief help message.

       -w, --version
	      Display the release version.

BUGS
       Long options (beginning with --) may not work on all systems.  See the message printed out
       by mkzftree -h to see if this applies to your system.

       Inode  change  times  (ctimes) are not copied.  This is a system limitation and applies to
       all file copy programs.

       If using the parallel option (-z) the access times (atimes) on directories may or may  not
       be  copied.   If  it is important that the atimes on directories are copied exactly, avoid
       using -z.

AUTHOR
       Written by H. Peter Anvin <hpa@zytor.com>.

COPYRIGHT
       Copyright (C) 2001-2002 H. Peter Anvin.
       This is free software; see the source for copying conditions.  There is NO  warranty;  not
       even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

SEE ALSO
       mkisofs(8)

zisofs-tools				   30 July 2001 			      MKZFTREE(1)


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