mirror of
https://github.com/Wiimpathy/HatariWii.git
synced 2024-11-22 09:49:15 +01:00
304 lines
8.2 KiB
Bash
Executable File
304 lines
8.2 KiB
Bash
Executable File
#!/bin/sh
|
|
# script for creating a compatible DOS HD image for Hatari with
|
|
# a single FAT16 partition of given size, with given contents
|
|
|
|
# defaults for disk attributes
|
|
diskfile=hd.img # HD image filename
|
|
partname=DOS # partition name
|
|
|
|
# no args or first arg has non-digit characters?
|
|
if [ $# -lt 1 ] || [ \! -z "$(echo $1|tr -d 0-9)" ]; then
|
|
name=${0##*/}
|
|
echo
|
|
echo "usage: $name <size> [filename] [partition name] [directory]"
|
|
echo
|
|
echo "Create an ACSI/IDE harddisk image for Hatari with a single Atari"
|
|
echo "compatible DOS partition. Arguments are (defaults in parenthesis):"
|
|
echo "- size: harddisk image size in megabytes, 8-512"
|
|
echo "- filename: name for the harddisk image ($diskfile)"
|
|
echo "- partition name: name for that single partition ($partname)"
|
|
echo "- directory: directory for initial content copied to the image"
|
|
echo
|
|
echo "For example:"
|
|
echo "- 16MB '$diskfile' HD image:"
|
|
echo " $name 16"
|
|
echo "- 8MB image with 'TEST' partition having files from content/:"
|
|
echo " $name 8 8mb-disk.img TEST content/"
|
|
echo
|
|
exit 1
|
|
fi
|
|
|
|
# sfdisk/mkdosfs reside in /sbin
|
|
PATH=/sbin:$PATH
|
|
export PATH
|
|
|
|
# check tools
|
|
if [ -z $(which mkdosfs) ] || [ -z $(which python) ]; then
|
|
echo "ERROR: either mkdosfs or python tool missing!"
|
|
exit 1
|
|
fi
|
|
|
|
# check disk size
|
|
disksize=$1
|
|
if [ $disksize -lt 5 ]; then
|
|
echo "ERROR: disk size needs to be at least 5 (MB) to work properly."
|
|
exit 1
|
|
fi
|
|
if [ $disksize -gt 512 ]; then
|
|
echo "ERROR: mkdosfs supports Atari compatible partitions only up to 512 MB."
|
|
exit 1
|
|
fi
|
|
|
|
# check optional arguments
|
|
if [ \! -z $2 ]; then
|
|
diskfile=$2
|
|
fi
|
|
if [ \! -z $3 ]; then
|
|
partname=$3
|
|
fi
|
|
|
|
# check that there's enough space:
|
|
# - partition + disk image (2.5x size just in case)
|
|
freespace=$(df $diskfile | awk '/\//{print $4/1024}')
|
|
if [ $freespace -lt $((5*$disksize/2)) ]; then
|
|
echo "ERROR: not enough space for partition creation!"
|
|
exit 1
|
|
fi
|
|
|
|
# check content
|
|
convertdir=""
|
|
if [ \! -z $4 ]; then
|
|
contentdir=${4%/}
|
|
if [ \! -d $contentdir ]; then
|
|
echo "ERROR: given content directory doesn't exist!"
|
|
exit 1
|
|
fi
|
|
contentsize=$(du -ks $contentdir | awk '{printf("%d", $1/1024)}')
|
|
if [ $contentsize -ge $disksize ]; then
|
|
echo "ERROR: '$contentdir' directory contents ($contentsize MB) don't fit to given image size ($disksize MB)!"
|
|
exit 1
|
|
fi
|
|
# name conversion script should be in same dir as this script, or in PATH
|
|
convert=${0%/*}/atari-convert-dir.py
|
|
if [ \! -x $convert ]; then
|
|
if [ -z $(which atari-convert-dir) ]; then
|
|
echo "ERROR: $convert script for file name conversion missing!"
|
|
exit 1
|
|
fi
|
|
convert=atari-convert-dir
|
|
fi
|
|
convertdir=$contentdir.converted
|
|
if [ -z $(which mcopy) ]; then
|
|
echo "ERROR: mcopy (from Mtools) missing!"
|
|
exit 1
|
|
fi
|
|
fi
|
|
|
|
# don't overwrite files by accident
|
|
if [ -f $diskfile ]; then
|
|
echo "ERROR: given harddisk image already exits. Give another name or remove it:"
|
|
echo " rm $diskfile"
|
|
exit 1
|
|
fi
|
|
|
|
# disk geometry
|
|
skip=0 # alignment / "padding" sectors between MBR before partition
|
|
diskheads=16
|
|
tracksectors=32 # same as used by mkdosfs
|
|
sectorsize=512
|
|
|
|
# partition size in sectors:
|
|
# 16*32*512 is 1/4MB -> multiply by 4 to get number of required sectors
|
|
partsectors=$((4*$disksize*$diskheads*$tracksectors))
|
|
|
|
# temporary files
|
|
tmppart=$diskfile.part
|
|
|
|
# ------------------------------------------------------------------
|
|
|
|
error="premature script exit"
|
|
# script exit/error handling
|
|
exit_cleanup ()
|
|
{
|
|
echo
|
|
if [ -z "$error" ]; then
|
|
echo "$step) Cleaning up..."
|
|
else
|
|
echo "ERROR: $error"
|
|
echo
|
|
echo "cleaning up..."
|
|
if [ -f $diskfile ]; then
|
|
echo "rm -f $diskfile"
|
|
rm -f $diskfile
|
|
fi
|
|
fi
|
|
if [ -f $tmppart ]; then
|
|
echo "rm -f $tmppart"
|
|
rm -f $tmppart
|
|
fi
|
|
if [ \! -z $convertdir ] && [ -d $convertdir ]; then
|
|
echo "rm -f $convertdir"
|
|
rm -f $convertdir
|
|
fi
|
|
echo "Done."
|
|
}
|
|
trap exit_cleanup EXIT
|
|
|
|
# ------------------------------------------------------------------
|
|
|
|
echo
|
|
step=1
|
|
echo "$step) Create DOS Master Boot Record / partition table..."
|
|
# See:
|
|
# - http://en.wikipedia.org/wiki/Master_boot_record
|
|
# - http://en.wikipedia.org/wiki/Cylinder-head-sector
|
|
# - http://en.wikipedia.org/wiki/File_Allocation_Table#Boot_Sector
|
|
# For DOS MBR, the values are little endian.
|
|
# -----------
|
|
python << EOF
|
|
#!/usr/bin/env python
|
|
mbr = bytearray(512)
|
|
|
|
def set_long(idx, value):
|
|
mbr[idx+0] = value & 0xff
|
|
mbr[idx+1] = value >> 8 & 0xff
|
|
mbr[idx+2] = value >> 16 & 0xff
|
|
mbr[idx+3] = value >> 24
|
|
|
|
def set_word(idx, value):
|
|
mbr[idx] = value & 0xff
|
|
mbr[idx+1] = value >> 8 & 0xff
|
|
|
|
def set_CHS(idx, values):
|
|
c, h, s = values
|
|
print "CHS: %3d,%3d,%3d @ $%x" % (c,h,s,idx)
|
|
mbr[idx] = h
|
|
mbr[idx+1] = (s & 0x3F) | ((c >> 2) & 0xC0)
|
|
mbr[idx+2] = c & 0xFF
|
|
|
|
def LBA2CHS(lba):
|
|
c = lba / ($tracksectors * $diskheads)
|
|
h = (lba / $tracksectors) % $diskheads
|
|
s = (lba % $tracksectors) + 1
|
|
return (c,h,s)
|
|
|
|
# disk size
|
|
sectors = 1 + $skip + $partsectors
|
|
if sectors < 65536:
|
|
set_word(0x13, sectors)
|
|
set_long(0x20, sectors)
|
|
parttype=0x4
|
|
else:
|
|
set_long(0x20, sectors)
|
|
parttype=0x6
|
|
|
|
# reserved sectors = MBR
|
|
mbr[0x0E] = 1
|
|
|
|
# CHS information
|
|
set_word(0x0B, $sectorsize)
|
|
mbr[0x0D] = 2 # sectors / cluster
|
|
set_word(0x18, $tracksectors)
|
|
set_word(0x1A, $diskheads)
|
|
|
|
# non-removable disk
|
|
mbr[0x15] = 0xF8
|
|
mbr[0x24] = 0x80
|
|
|
|
# partition size in sectors
|
|
partsectors = $partsectors - 1
|
|
# first partition takes all
|
|
offset = 0x1BE
|
|
mbr[offset] = 0x80 # bootable
|
|
mbr[offset+4] = parttype
|
|
# partition start & sector count in LBA
|
|
set_long(offset + 0x08, 1)
|
|
set_long(offset + 0x0C, partsectors)
|
|
# partition start & end in CHS
|
|
set_CHS(offset + 1, LBA2CHS(1))
|
|
set_CHS(offset + 5, LBA2CHS(partsectors))
|
|
# 3 last partitions are empty
|
|
for i in (1,2,3):
|
|
offset += 0x10
|
|
set_long(offset + 0x08, partsectors+1)
|
|
set_long(offset + 0x0C, 0)
|
|
set_CHS(offset + 1, LBA2CHS(partsectors+1))
|
|
set_CHS(offset + 5, LBA2CHS(partsectors))
|
|
|
|
# MBR signature
|
|
mbr[0x1FE] = 0x55
|
|
mbr[0x1FF] = 0xAA
|
|
|
|
open("$diskfile", "wb").write(bytes(mbr))
|
|
EOF
|
|
# -----------
|
|
od -t x1 $diskfile
|
|
|
|
# ------------------------------------------------------------------
|
|
|
|
echo
|
|
step=$(($step+1))
|
|
echo "$step) Create an Atari TOS compatible DOS partition..."
|
|
# mkdosfs keeps the sector count below 32765 when -A is used by increasing
|
|
# the logical sector size (this is for TOS compatibility, -A guarantees
|
|
# also 2 sectors / cluster and Atari serial number etc). Mtools barfs
|
|
# if partition size doesn't divide evenly with its track size. Determine
|
|
# suitable cluster count & corresponding track size and align (decrease)
|
|
# the file system sector count accordingly.
|
|
tracksize=32
|
|
clustertmp=$((partsectors/2))
|
|
echo "Sectors: $partsectors, sectors/track: $tracksize, clusters: $clustertmp"
|
|
while [ $clustertmp -gt 32765 ]; do
|
|
clustertmp=$((clustertmp/2))
|
|
tracksize=$(($tracksize*2))
|
|
echo "Doubling sector size as >32765 clusters -> $clustertmp clusters"
|
|
done
|
|
sectors=$(($partsectors/$tracksize))
|
|
sectors=$(($sectors*$tracksize))
|
|
kilobytes=$(($sectors/2))
|
|
if [ $sectors -ne $partsectors ]; then
|
|
echo "Align sector count with clusters/sectors/track: $partsectors -> $sectors ($kilobytes kB)"
|
|
fi
|
|
echo "mkdosfs -A -F 16 -n $partname -C $tmppart $kilobytes"
|
|
mkdosfs -A -F 16 -n $partname -C $tmppart $kilobytes
|
|
|
|
# ------------------------------------------------------------------
|
|
|
|
if [ \! -z $contentdir ]; then
|
|
echo
|
|
step=$(($step+1))
|
|
echo "$step) Clip/convert long file names to Atari compatible 8+3 format..."
|
|
echo "$convert $contentdir $convertdir"
|
|
$convert $contentdir $convertdir
|
|
if [ $? -ne 0 ]; then
|
|
error="conversion failed."
|
|
exit 2
|
|
fi
|
|
|
|
echo
|
|
step=$(($step+1))
|
|
# copy contents of given directory to the new partition
|
|
echo "$step) Copy the initial content to the partition..."
|
|
echo "MTOOLS_NO_VFAT=1 mcopy -i $tmppart -spmv $convertdir/* ::"
|
|
MTOOLS_NO_VFAT=1 mcopy -i $tmppart -spmv $convertdir/* ::
|
|
if [ $? -ne 0 ]; then
|
|
error="mcopy failed."
|
|
exit 2
|
|
fi
|
|
echo "rm -rf $convertdir"
|
|
rm -rf $convertdir
|
|
fi
|
|
|
|
# ------------------------------------------------------------------
|
|
|
|
echo
|
|
step=$(($step+1))
|
|
# copy the partition into disk
|
|
echo "$step) Copy the partition to disk image..."
|
|
echo "dd if=$tmppart of=$diskfile bs=512 seek=$((1+$skip)) count=$sectors"
|
|
dd if=$tmppart of=$diskfile bs=512 seek=$((1+$skip)) count=$sectors
|
|
|
|
step=$(($step+1))
|
|
# cleanup is done by exit_cleanup() trap
|
|
error=""
|