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76 lines
2.0 KiB
76 lines
2.0 KiB
#!/usr/bin/env bash
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#
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# Copyright (C) 2016 Josua Mayer
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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usage() {
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echo "$0 <outfile> <bootloader> [<type_partitionN> <sectors_partitionN> <img_partitionN>]?"
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}
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# always require first 3 arguments
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# then in pairs up to 8 more for a total of up to 4 partitions
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if [ $# -lt 2 ] || [ $# -gt 15 ] || [ $((($# - 2) % 3)) -ne 0 ]; then
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usage
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exit 1
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fi
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set -e
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# parameters
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OUTFILE="$1"; shift
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BOOTLOADER="$1"; shift
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# generate image file
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printf "Creating $OUTFILE from /dev/zero: "
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dd if=/dev/zero of="$OUTFILE" bs=512 count=1 >/dev/null
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printf "Done\n"
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while [ "$#" -ge 3 ]; do
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ptgen_args="$ptgen_args -p $(($2 / 2 + 256)) -S 0x$1"
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parts="$parts$3 "
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shift; shift; shift
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done
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head=16
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sect=63
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# create real partition table using fdisk
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printf "Creating partition table: "
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set `ptgen -o "$OUTFILE" -h $head -s $sect -l 1024 $ptgen_args`
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printf "Done\n"
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# install bootloader
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printf "Writing bootloader: "
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dd of="$OUTFILE" if="$BOOTLOADER" bs=512 seek=1 conv=notrunc 2>/dev/null
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printf "Done\n"
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i=1
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while [ "$#" -ge 2 ]; do
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img="${parts%% *}"
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parts="${parts#* }"
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printf "Writing %s to partition %i: " "$img" $i
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(
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cat "$img"
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# add padding to avoid leaving behind old overlay fs data
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dd if=/dev/zero bs=128k count=1 2>/dev/null
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) | dd of="$OUTFILE" bs=512 seek=$(($1 / 512)) conv=notrunc 2>/dev/null
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printf "Done\n"
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let i=i+1
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shift; shift
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done
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