# # $OpenBSD: disktab,v 1.7 2002/06/09 06:15:15 todd Exp $ # $NetBSD: disktab,v 1.3 1995/11/21 20:58:33 gwr Exp $ # # Disk geometry and partition layout tables. # Key: # dt controller type # ty type of disk (fixed, removeable, simulated) # d[0-4] drive-type-dependent parameters # ns #sectors/track # nt #tracks/cylinder # nc #cylinders/disk # sc #sectors/cylinder, ns*nt default # su #sectors/unit, sc*nc default # se sector size, DEV_BSIZE default # rm rpm, 3600 default # sf supports bad144-style bad sector forwarding # sk sector skew per track, default 0 # cs sector skew per cylinder, default 0 # hs headswitch time, default 0 # ts one-cylinder seek time, default 0 # il sector interleave (n:1), 1 default # bs boot block size, default BBSIZE # sb superblock size, default SBSIZE # o[a-h] partition offsets in sectors # p[a-h] partition sizes in sectors # b[a-h] partition block sizes in bytes # f[a-h] partition fragment sizes in bytes # t[a-h] partition types (filesystem, swap, etc) # # All partition sizes reserve space for bad sector tables. # (5 cylinders needed for maintenance + replacement sectors) # wren7|Seagate Wren 7:\ :dt=SCSI:ty=winchester:\ :nc#1632:ns#52:nt#15:\ :se#512:\ :rm#3600:\ :pa#65520:oa#0:ta=4.2BSD:\ :pb#65520:ob#65520:tb=swap:\ :pc#1272960:oc#0:\ :pd#65520:od#131040:td=4.2BSD:\ :pg#1076400:og#196560:tg=4.2BSD: rdroot|ramdiskroot|RAM-disk root FS image:\ :ty=ramdisk:se#512:nt#2:ns#128:nc#16:\ :pa#4046:oa#0:ta=4.2BSD:ba#4096:fa#512:\ :pb#0:ob#0:tb=swap:\ :pc#4046:oc#0: miniroot:\ :ty=winchester:se#512:nt#2:rm#300:ns#64:nc#80:\ :ts=3500:\ :pa#10240:oa#0:ba#8192:fa#1024:ta=4.2BSD:\ :pb#0:ob#0:\ :pc#10240:oc#0: rdroot-sparc:\ :ty=ramdisk:se#512:nt#2:rm#300:ns#8:nc#1024:\ :pa#8192:oa#0:ta=4.2BSD:ba#8192:fa#1024: \ :pc#8192:oc#0: