floppypar(4) CLIX floppypar(4)
NAME
floppypar - Partitioned floppy header format
DESCRIPTION
The mkpar command is used to divide a floppy into one or more logical
sections called partitions. Information about each partition is contained
in the floppy partition header (floppypar) that resides on the first block
of a partitioned floppy.
The organization of the floppy header is as follows, where n < 86:
Byte Offset Description
_________________________________________________
0-3 Magic number
4-5 Number of logical partitions
6 Partition number of logical
partition 1
7 Modifier number of logical
partition 1
8-9 Block number of the first block
of logical partition 1
10-11 Block number of the last block
of logical partition 1
12 Partition number of logical
partition 2
13 Modifier number of logical
partition 2
14-15 Block number of the first block
of logical partition 2
16-17 Block number of the last block
of logical partition 2
18 Partition number of logical
partition 3
19 Modifier number of logical
partition 3
20-21 Block number of the first block
of logical partition 3
22-23 Block number of the last block
of logical partition 3
... ...
(6*n) Partition number of logical
partition n
(6*n+1) Modifier number of logical
partition n
(6*n+2)-(6*n+3) Block number of the first block
of logical partition n
(6*n+4)-(6*n+5) Block number of the last block
2/94 - Intergraph Corporation 1
floppypar(4) CLIX floppypar(4)
of logical partition n
The magic number is 0x73616e65.
The number of logical partitions is a 16-bit unsigned integer value.
The partition number and the modifier number of each logical partition are
8-bit unsigned integer values.
The first block and last block values for each logical partition are 16-
bit unsigned integer values.
RELATED INFORMATION
Commands: mkpar(8), parck(8)
Files: fl(7)
2 Intergraph Corporation - 2/94