Man page or keyword search:   man All Sections 1 - General Commands 2 - System Calls 3 - Subroutines, Functions 4 - Special Files 5 - File Formats 6 - Games and Screensavers 7 - Macros and Conventions 8 - Maintenence Commands 9 - Kernel Interface New Commands Server 4.4BSD AIX Alpinelinux Archlinux Aros BSDOS BSDi Bifrost CentOS Cygwin Darwin Debian DigitalUNIX DragonFly ElementaryOS Fedora FreeBSD Gentoo GhostBSD HP-UX Haiku Hurd IRIX Inferno JazzOS Kali Knoppix LinuxMint MacOSX Mageia Mandriva Manjaro Minix MirBSD NeXTSTEP NetBSD OPENSTEP OSF1 OpenBSD OpenDarwin OpenIndiana OpenMandriva OpenServer OpenSuSE OpenVMS Oracle PC-BSD Peanut Pidora Plan9 QNX Raspbian RedHat Scientific Slackware SmartOS Solaris SuSE SunOS Syllable Tru64 UNIXv7 Ubuntu Ultrix UnixWare Xenix YellowDog aLinux   6113 pages apropos Keyword Search (all sections) Output format html ascii pdf view pdf save postscript

FSINFO(8)		 BSD System Manager's Manual		     FSINFO(8)

NAME
     ffsinfo - dump all meta information of an existing ufs file system

SYNOPSIS
     ffsinfo [-L] [-g cylinder_group] [-i inode] [-l level] [-o outfile]
	     special | file

DESCRIPTION
     The ffsinfo utility extends the dumpfs(8) utility.

     The output is generated into the file outfile. Also expect the output
     file to be rather large. Up to 2 percent of the size of the specified
     file system is not uncommon.

     The following options are available:

     -L	     Specifying this option skips the tests of the disklabel. This is
	     done automatically, if the specified filename to dump is a plain
	     file.

     -g cylinder_group
	     This restricts the dump to information about this cylinder group
	     only. Here 0 means the first cylinder group and -1 the last one.

     -i inode
	     This restricts the dump to information about this particular
	     inode only. Here the minimum acceptable inode is 2. If this op-
	     tion is omitted but a cylinder group is defined then only inodes
	     within that cylinder group are dumped.

     -l level
	     The level of detail which will be dumped. This value defaults to
	     255 and is the "bitwise or" of the following table:

	     0x001   initial superblock
	     0x002   superblock copies in each cylinder group
	     0x004   cylinder group summary in initial cylinder group
	     0x008   cylinder group information
	     0x010   inode allocation bitmap
	     0x020   fragment allocation bitmap
	     0x040   cluster maps and summary
	     0x080   rotational layout tables
	     0x100   inode information
	     0x200   indirect block dump

     -o outfile
	     This allows to change the output filename where the dump is writ-
	     ten to. The current default is /var/tmp/ffsinfo. If - is provid-
	     ed, output will be sent to stdout.

EXAMPLES
	   ffsinfo -l 1023 /dev/rwd0f

     will dump /dev/rwd0f with all available information.

BUGS
     Currently ffsinfo can only dump unmounted file systems. Do not try dump-
     ing a mounted file system, your system may panic and you will not be able
     to use the file system any longer.

     Also snapshots are handled like plain files. They should get their own
     level to provide for independent control of the amount of what gets
     dumped. It probably also makes sense to some extend to dump the snapshot
     as a file system.
SEE ALSO
     disklabel(8), dumpfs(8), fsck(8), growfs(8), newfs(8), tunefs(8)

AUTHORS
     Christoph Herrmann <chm@FreeBSD.org>
     Thomas-Henning von Kamptz <tomsoft@FreeBSD.org>
     The GROWFS team <growfs@Tomsoft.COM>

HISTORY
     The ffsinfo utility first appeared in FreeBSD 4.4.

MirOS BSD #10-current	      September 8, 2000				     1

Vote for polarhome