Essential System Administration, 2nd Edition by AEleen Frisch Here are the changes that were made in the 11/98 reprint: (412) line 6: "**UNKNOWN XREF**" now reads "The following table" {485} line 30: /chem/pub/old/gold/dat now reads /chem/pub/old/gold.dat (502) for "ibs" and "obs", changed "which must be a multiple of the system block size (which is usually 512 bytes)." to "in bytes (the default is 512)."