150 lines
5.3 KiB
HTML
150 lines
5.3 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<HTML><HEAD><TITLE>Man page of MKZFTREE</TITLE>
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</HEAD><BODY>
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<H1>MKZFTREE</H1>
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Section: H. Peter Anvin (1)<BR>Updated: 30 July 2001<BR><A HREF="#index">Index</A>
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<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
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<A NAME="lbAB"> </A>
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<H2>NAME</H2>
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mkzftree - Create a zisofs/RockRidge compressed file tree
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<A NAME="lbAC"> </A>
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<H2>SYNOPSIS</H2>
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<B>mkzftree</B>
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[<I>OPTIONS</I>]... <I>INPUT</I> <I>OUTPUT</I>
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<A NAME="lbAD"> </A>
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<H2>DESCRIPTION</H2>
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<P>
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Takes an input file tree (<I>INPUT</I>) and create a corresponding
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compressed file tree (<I>OUTPUT</I>) that can be used with an
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appropriately patched
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<B><A HREF="/cgi-bin/man/man2html?8+mkisofs">mkisofs</A></B>(8)
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to create a transparent-compression ISO 9660/Rock Ridge filesystem using
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the "ZF" compression records.
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<A NAME="lbAE"> </A>
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<H2>OPTIONS</H2>
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<DL COMPACT>
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<DT id="1"><B>-f</B>, <B>--force</B><DD>
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Always compress all files, even if they get larger when compressed.
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<DT id="2"><B>-z</B> <I>level</I>, <B>--level</B> <I>level</I><DD>
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Select compression level (1-9, default is 9). Lower compression
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levels are faster, but typically result in larger output.
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<DT id="3"><B>-u</B>, <B>--uncompress</B><DD>
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Uncompress an already compressed tree. This can be used to read a
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compressed filesystem on a system which cannot read them natively.
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<DT id="4"><B>-p</B> <I>parallelism</I>, <B>--parallelism</B> <I>parallelism</I><DD>
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Compress in parallel. The
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<I>parallelism</I>
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value indicates how many compression threads are allowed to run.
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<DT id="5"><B>-x</B>, <B>--one-filesystem</B><DD>
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Do not cross filesystem boundaries, but create directory stubs at
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mount points.
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<DT id="6"><B>-X</B>, <B>--strict-one-filesystem</B><DD>
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Do not cross filesystem boundaries, and do not create directory stubs
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at mount points.
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<DT id="7"><B>-C</B> <I>path</I>, <B>--crib-path</B> <I>path</I><DD>
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Steal ("crib") files from another directory if it looks (based on
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name, size, type and modification time) like they match entries in the
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new filesystem. The "crib tree" is usually the compressed version of
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an older version of the same workload; this thus allows for
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"incremental rebuilds" of a compressed filesystem tree. The files are
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hardlinked from the crib tree to the output tree, so if it is
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desirable to keep the link count correct the crib path should be
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deleted before running <B>mkisofs</B>. The crib tree must be on the
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same filesystem as the output tree.
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<DT id="8"><B>-l</B>, <B>--local</B><DD>
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Do not recurse into subdirectories, but create the directories
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themselves.
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<DT id="9"><B>-L</B>, <B>--strict-local</B><DD>
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Do not recurse into subdirectories, and do not create directories.
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<DT id="10"><B>-F</B>, <B>--file</B><DD>
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Indicates that <I>INPUT</I> may not necessarily be a directory; this
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allows operation on a single file. Note especially that if <I>-F</I>
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is specified, and <I>INPUT</I> is a symlink, the symlink itself will be
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copied rather than whatever it happens to point to.
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<DT id="11"><B>-s</B>, <B>--sloppy</B><DD>
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Treat file modes, times and ownership data as less than precious
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information and don't abort if they cannot be set. This may be useful
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if running
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<B>mkisofs</B>
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on an input tree you do not own.
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<DT id="12"><B>-v</B>, <B>--verbose</B><DD>
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Increase the program verbosity.
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<DT id="13"><B>-V</B> <I>value</I>, <B>--verbosity</B> <I>value</I><DD>
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Set the program verbosity to
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<I>value</I>.
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<DT id="14"><B>-q</B>, <B>--quiet</B><DD>
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Issue no messages whatsoever, including error messages. This is the same
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as specifying
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<I>-V 0</I>.
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<DT id="15"><B>-h</B>, <B>--help</B><DD>
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Display a brief help message.
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<DT id="16"><B>-w</B>, <B>--version</B><DD>
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Display the release version.
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</DL>
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<A NAME="lbAF"> </A>
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<H2>BUGS</H2>
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Long options (beginning with <I>--</I>) may not work on all systems.
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See the message printed out by <I>mkzftree -h</I> to see if this
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applies to your system.
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<P>
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Inode change times (ctimes) are not copied. This is a system
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limitation and applies to all file copy programs.
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<P>
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If using the parallel option (<I>-z</I>) the access times (atimes) on
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directories may or may not be copied. If it is important that the
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atimes on directories are copied exactly, avoid using <I>-z</I>.
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<A NAME="lbAG"> </A>
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<H2>AUTHOR</H2>
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Written by H. Peter Anvin <<A HREF="mailto:hpa@zytor.com">hpa@zytor.com</A>>.
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<A NAME="lbAH"> </A>
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<H2>COPYRIGHT</H2>
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Copyright © 2001-2002 H. Peter Anvin.
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<BR>
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This is free software; see the source for copying conditions. There is NO
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warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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<A NAME="lbAI"> </A>
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<H2>SEE ALSO</H2>
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<B><A HREF="/cgi-bin/man/man2html?8+mkisofs">mkisofs</A></B>(8)
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<P>
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<HR>
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<A NAME="index"> </A><H2>Index</H2>
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<DL>
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<DT id="17"><A HREF="#lbAB">NAME</A><DD>
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<DT id="18"><A HREF="#lbAC">SYNOPSIS</A><DD>
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<DT id="19"><A HREF="#lbAD">DESCRIPTION</A><DD>
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<DT id="20"><A HREF="#lbAE">OPTIONS</A><DD>
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<DT id="21"><A HREF="#lbAF">BUGS</A><DD>
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<DT id="22"><A HREF="#lbAG">AUTHOR</A><DD>
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<DT id="23"><A HREF="#lbAH">COPYRIGHT</A><DD>
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<DT id="24"><A HREF="#lbAI">SEE ALSO</A><DD>
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</DL>
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<HR>
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This document was created by
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<A HREF="/cgi-bin/man/man2html">man2html</A>,
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using the manual pages.<BR>
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Time: 00:05:19 GMT, March 31, 2021
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