43 lines
1.4 KiB
Plaintext
43 lines
1.4 KiB
Plaintext
#
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# $NetBSD: disktab,v 1.3 1995/11/21 20:58:33 gwr Exp $
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#
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# Disk geometry and partition layout tables.
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# Key:
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# dt controller type
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# ty type of disk (fixed, removeable, simulated)
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# d[0-4] drive-type-dependent parameters
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# ns #sectors/track
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# nt #tracks/cylinder
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# nc #cylinders/disk
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# sc #sectors/cylinder, ns*nt default
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# su #sectors/unit, sc*nc default
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# se sector size, DEV_BSIZE default
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# rm rpm, 3600 default
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# sf supports bad144-style bad sector forwarding
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# sk sector skew per track, default 0
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# cs sector skew per cylinder, default 0
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# hs headswitch time, default 0
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# ts one-cylinder seek time, default 0
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# il sector interleave (n:1), 1 default
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# bs boot block size, default BBSIZE
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# sb superblock size, default SBSIZE
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# o[a-h] partition offsets in sectors
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# p[a-h] partition sizes in sectors
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# b[a-h] partition block sizes in bytes
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# f[a-h] partition fragment sizes in bytes
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# t[a-h] partition types (filesystem, swap, etc)
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#
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# All partition sizes reserve space for bad sector tables.
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# (5 cylinders needed for maintenance + replacement sectors)
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#
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# XXX - Would like :ba#4096:fa#512: but that panics...
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# Leave nc=16; adjust size using: ns
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rdroot|ramdiskroot|RAM-disk root FS image:\
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:ty=simulated:se#512:nc#16:nt#2:ns#16:\
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:ta=4.4BSD:oa#0:pa#512:\
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:ob#0:pb#0:oc#0:pc#512:
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miniroot|Installation root-on-swap FS image:\
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:ty=simulated:se#512:ns#32:nt#8:nc#64:\
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:ta=4.4BSD:oa#0:pa#16384:\
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:ob#0:pb#0:oc#0:pc#16384:
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