64 lines
1.9 KiB
Plaintext
64 lines
1.9 KiB
Plaintext
# 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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floppy|floppy3|3in|3.5in High Density Floppy:\
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:ty=floppy:se#512:nt#2:rm#300:ns#18:nc#80:\
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:pa#2880:oa#0:ba#4096:fa#512:\
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:pb#2880:ob#0:\
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:pc#2880:oc#0:
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floppyhd|floppy3hd|3inhd|3.5inch High Density Floppy:\
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:ty=floppy:se#512:nt#2:rm#300:ns#22:nc#80:\
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:ts=3500:\
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:pa#3520:oa#0:ba#4096:fa#512:\
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:pb#0:ob#0:\
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:pc#3520:oc#0:
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floppy5|5in|2hc|5in1200|5.25in High Density Floppy:\
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:ty=floppy:se#512:nt#2:rm#300:ns#15:nc#80:\
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:pa#2400:oa#0:ba#4096:fa#512:\
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:pb#2400:ob#0:bb#4096:fb#512:\
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:pc#2400:oc#0:bc#4096:fc#512:
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floppy5j|5inj|2hd|5in1232|5.25 inch High Density Floppy (1024kbytes/sec, 77cyl):\
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:ty=floppy:se#1024:nt#2:rm#360:ns#8:nc#77:\
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:ts=1800:\
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:pa#1232:oa#0:ba#4096:fa#1024:\
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:pb#0:ob#0:\
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:pc#1232:oc#0:
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# for NetBSD/x68k boot floppy (by Itoh Y.)
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floppy1232|1024byte sector format for 2HD floppy:\
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:ty=floppy:se#512:nt#2:rm#360:ns#16:nc#77:\
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:ts=3500:\
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:pa#2464:oa#0:ba#8192:fa#1024:ta=4.2BSD:\
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:pb#0:ob#0:\
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:pc#2464:oc#0:
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