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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | SEE ALSO | COLOPHON |
xfs_logprint(8) System Manager's Manual xfs_logprint(8)
xfs_logprint - print the log of an XFS filesystem
xfs_logprint [ options ] device
xfs_logprint prints the log of an XFS filesystem (see xfs(5)). The
device argument is the pathname of the partition or logical volume
containing the filesystem. The device can be a regular file if the -f
option is used. 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.
-b Extract and print buffer information. Only used in
transactional view.
-c Attempt to continue when an error is detected.
-C filename
Copy the log from the filesystem to the file filename. The
log itself is not printed.
-d Dump the log from front to end, printing where each log record
is located on disk.
-D Do not 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 Specifies that the filesystem image to be processed is stored
in a regular file at device (see the mkfs.xfs(8) -d file
option). This might happen if an image copy of a filesystem
has been made into an ordinary file with xfs_copy(8).
-l logdev
External log device. Only for those filesystems which use an
external log.
-i Extract and print inode information. Only used in
transactional view.
-q Extract and print quota information. Only used in
transactional view.
-n Do not 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.
-s start-block
Override any notion of where to start printing.
-t Print out the transactional view.
-v Print "overwrite" data.
-V Prints the version number and exits.
mkfs.xfs(8), mount(8).
This page is part of the xfsprogs (utilities for XFS filesystems)
project. Information about the project can be found at
⟨http://xfs.org/⟩. If you have a bug report for this manual page, see
⟨http://oss.sgi.com/bugzilla/buglist.cgi?product=XFS⟩. This page was
obtained from the project's upstream Git repository
⟨git://oss.sgi.com/xfs/cmds/xfsprogs⟩ on 2017-07-05. If you discover
any rendering problems in this HTML version of the page, or you
believe there is a better or more up-to-date source for the page, or
you have corrections or improvements to the information in this
COLOPHON (which is not part of the original manual page), send a mail
to man-pages@man7.org
xfs_logprint(8)
Pages that refer to this page: xfs_db(8)