1# $NetBSD: disktab.preinstall,v 1.1 2010/04/06 15:54:31 nonaka Exp $ 2# 3# Disk geometry and partition layout tables. 4# Key: 5# dt controller type 6# ty type of disk (fixed, removable, simulated) 7# d[0-4] drive-type-dependent parameters 8# ns #sectors/track 9# nt #tracks/cylinder 10# nc #cylinders/disk 11# sc #sectors/cylinder, nc*nt default 12# su #sectors/unit, sc*nc default 13# se sector size, DEV_BSIZE default 14# rm rpm, 3600 default 15# sf supports bad144-style bad sector forwarding 16# sk sector skew per track, default 0 17# cs sector skew per cylinder, default 0 18# hs headswitch time, default 0 19# ts one-cylinder seek time, default 0 20# il sector interleave (n:1), 1 default 21# bs boot block size, default BBSIZE 22# sb superblock size, default SBSIZE 23# o[a-h] partition offsets in sectors 24# p[a-h] partition sizes in sectors 25# b[a-h] partition block sizes in bytes 26# f[a-h] partition fragment sizes in bytes 27# t[a-h] partition types (filesystem, swap, etc) 28# 29# All partition sizes reserve space for bad sector tables. 30# (5 cylinders needed for maintenance + replacement sectors) 31# 32