Addresses-Debian-Bug: #486463
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
detecting the correct block size as normal.
.TP
.I -s superblock
-Causes the file system superblock to be read from the given block number,
-rather than the default (1). If you give a
+Causes the file system superblock to be read from the given block
+number, instead of using the primary superblock (located at an offset of
+1024 bytes from the beginning of the filesystem). If you specify the
.I -s
-option, you must also give a
+option, you must also provide the blocksize of the filesystem via the
.I -b
option.
.TP