xfslogprint(1M)                                              xfslogprint(1M)



NAME
     xfs_logprint - print the log of an XFS filesystem

SYNOPSIS
     xfslogprint [ options ] device-name
     xfslogprint -f [ options ] filename

DESCRIPTION
     xfs_logprint prints the log of an XFS filesystem (see xfs(4)).  The
     device-name argument is the pathname of the partition or logical volume
     containing the filesystem.  The contents of the filesystem remain
     undisturbed.  There are two major modes of operation in xfs_logprint.

     One mode is better for filesystem operation debugging.  It is called the
     transactional view and is enabled through the -t option.  The
     transactional view prints only the portion of the log that pertains to
     recovery.  In other words, it prints out complete transactions between
     the tail and the head.  This view tries to display each transaction
     without regard to how they are split across log records.

     The second mode starts printing out information from the beginning of the
     log.  Some error blocks might print out in the beginning because the last
     log record usually overlaps the oldest log record.  A message is printed
     when the physical end of the log is reached and when the logical end of
     the log is reached.  A log record view is displayed one record at a time.
     Transactions that span log records may not be decoded fully.

     Common options are:

     -b   Extract and print buffer information.  Only used in transactional
          view.

     -D   Don't decode anything; just print data.

     -e   Exit when an error is found in the log.  Normally, xfs_logprint
          tries to continue and unwind from bad logs.  However, sometimes it
          just dies in bad ways.  Using this option prevents core dumps.

     -f   The log is a file.

     -i   Extract and print inode information.  Only used in transactional
          view.

     -q   Extract and print quota information.  Only used in transactional
          view.

     -n   Don't try and interpret log data; just interpret log header
          information.

     -o   Also print buffer data in hex.  Normally, buffer data is just
          decoded, so better information can be printed.




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xfslogprint(1M)                                              xfslogprint(1M)



     -s start-block
          Override any notion of where to start printing.

     -t   Print out the transactional view.

SEE ALSO
     mkfs_xfs(1M), mount(1M).
















































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