103 lines
3.3 KiB
HTML
103 lines
3.3 KiB
HTML
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Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009, 2013
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The President and Fellows of Harvard College.
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<html>
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<head>
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<title>dumpsfs</title>
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<link rel="stylesheet" type="text/css" media="all" href="../man.css">
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</head>
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<body bgcolor=#ffffff>
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<h2 align=center>dumpsfs</h2>
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<h4 align=center>OS/161 Reference Manual</h4>
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<h3>Name</h3>
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<p>
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dumpsfs - dump information about an SFS filesystem
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</p>
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<h3>Synopsis</h3>
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<p>
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<tt>/sbin/dumpsfs</tt> <em>raw-device</em><br>
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<tt>host-dumpsfs</tt> <em>disk-image-file</em>
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</p>
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<h3>Description</h3>
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<p>
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<tt>dumpsfs</tt> dumps out selected information regarding the contents
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and structure of the SFS filesystem on the device it is passed.
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<p>
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<p>
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Like <A HREF=mksfs.html>mksfs</A>, it is also compiled for the
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System/161 host OS, and in that form can access System/161's disk
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image files.
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</p>
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<h3>Requirements</h3>
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<p>
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<tt>dumpsfs</tt> uses the following system calls:
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<ul>
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<li> <A HREF=../syscall/open.html>open</A>
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<li> <A HREF=../syscall/read.html>read</A>
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<li> <A HREF=../syscall/write.html>write</A>
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<li> <A HREF=../syscall/lseek.html>lseek</A>
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<li> <A HREF=../syscall/fstat.html>fstat</A>
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<li> <A HREF=../syscall/close.html>close</A>
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<li> <A HREF=../syscall/_exit.html>_exit</A>
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</ul>
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</p>
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<p>
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Since the fstat system call is not normally part of the basic system
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calls assignment, <tt>dumpsfs</tt> will usually still not function
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after that assignment is completed.
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The fstat call is typically part of a later assignment, usually the
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file system assignment.
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Consult your course materials for specific information.
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</p>
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<p>
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The host version of <tt>dumpsfs</tt>, since it runs outside of OS/161,
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should always work regardless of what you have and have not
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implemented.
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</p>
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<p>
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Note that you may wish to extend dumpsfs in the course of doing the
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file system assignment.
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</p>
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<h3>See Also</h3>
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<p>
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<A HREF=mksfs.html>mksfs</A>,
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<A HREF=sfsck.html>sfsck</A>
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</p>
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</body>
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</html>
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