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Command: dumpfs | Section: 8 | Source: OpenBSD | File: dumpfs.8
DUMPFS(8) FreeBSD System Manager's Manual DUMPFS(8)
NAME
dumpfs - dump file system information
SYNOPSIS
dumpfs [-m] filesys | device
DESCRIPTION
dumpfs prints out the super block and cylinder group information for the
file system or special device specified, unless -m is specified. The
listing is very long and detailed.
dumpfs is useful mostly for finding out certain file system information
such as the file system block size, minimum free space percentage, and
the file system level that can be upgraded with the -c option of
fsck_ffs(8). All of this information can be found within the first
twenty lines of the output.
If -m is specified, a newfs(8) command is output that can be used to
generate a new file system with equivalent settings.
SEE ALSO
disktab(5), fs(5), disklabel(8), fsck(8), fsck_ffs(8), growfs(8),
newfs(8), tunefs(8)
HISTORY
The dumpfs command appeared in 4.2BSD.
FreeBSD 14.1-RELEASE-p8 May 31, 2007 FreeBSD 14.1-RELEASE-p8