dumpfs(1M)dumpfs(1M)NAMEdumpfs - dump file system information
The command prints the super block and cylinder group information for
an HFS file system to the standard output. The file system may be
specified by its root directory or the name of the device special file
on which it resides. The information is very long and detailed. This
command can be used to find file system information such as the file
system block size or the minimum free space percentage.
The command can only be used on HFS file systems.
was developed by the University of California, Berkeley.
SEE ALSOfsck(1M), mkfs(1M), newfs(1M), tunefs(1M), disktab(4).