AT&T 3B2/300 Technical Reference Manual page 204

EQUIPMENT D E S C R I P T I O N - - - - - - - - - - - - - - - - - - - - - - - - - - -
Floppy Disk Partitions
The following table defines the floppy disk partitions in terms of use, starting sector, and total
number of blocks for the various controller (c), drive (d), and section (s) identifiers for the floppy disk.
These identifiers are applicable to both the raw and block devices. Note that Volume Table of Contents
(VTOC) partitioning is not applicable to the floppy disk drive. The raw and block device partitions for
the entire floppy disk (partition 6) are linked to /dev/rSA/diskettel and /dev/SA/diskettel, respectively.
The use of these names when specifying the entire floppy disk is preferred over the use of the
controller, drive, and section identifiers to avoid accidentally writing to a different device or partition.
720-KILOBYTE FLOPPY DISK DRIVE
(18 Blocks/Cylinder, Gap~l)
FLOPPY DISK DEFAULT PARTITIONING
DISK SECTOR TOTAL
PARTITION
USE START SECTORS*
cOdOsO
root
378 (21 *18) 1044
cOdOsl usr 452 (34*18) 810
c0d0s2 usr 810 (45*18) 612
c0d0s3 usr
1008 (56*18) 414
c0d0s4 usr 2106 (67*18) 216
c0d0s5 usr
1 (1 *18) 1404
c0d0s6 entire disk 0 1422
c0d0s7 boot
0 18
* Blocks (sectors) are reported in 512-byte blocks.
2-180 TECHNICAL REFERENCE MANUAL