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30 .\" @(#)dumplfs.8 8.1 (Berkeley) 6/18/93
37 .Nd dump file system information
44 .Ar filesys No \&| Ar device
47 prints out the file system layout information for the
48 LFS file system or special device specified.
49 The listing is very long and detailed.
50 This command is useful mostly for finding out certain file system
51 information such as the file system block size.
53 The following flags are interpreted by
55 .Bl -tag -width indent
57 Dump the contents of all superblocks, not just the first. Superblocks
58 appear in the dumplfs output with the segment containing them.
60 Use the block specified immediately after the flag as the super block for the
63 Check partial segment data checksums and report mismatches. This makes
65 operate much more slowly.
67 Use the block specified immediately after the flag as the inode block
68 containing the index file inode.
70 Dump information about the inode free list.
72 Dump information about the segment table.
74 Add the segment number immediately following the flag to a list of segments to
75 dump. This flag may be specified more than once to dump more than one segment.
76 The default is to dump all segments.