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Delete src/build.sh
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77
src/build.sh
77
src/build.sh
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#!/usr/bin/env bash
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set -Eeuo pipefail
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DST="/images"
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OUT="/tmp/extract"
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rm -rf "$OUT"
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rm -rf "$DST"
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mkdir -p "$OUT"
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mkdir -p "$DST"
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echo "Extracting template image..."
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if [ ! -f "$1" ] || [ ! -s "$1" ]; then
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echo "Could not find image file \"$1\"." && exit 10
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fi
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START=$(sfdisk -l "$1" | grep -i -m 1 "EFI System" | awk '{print $2}')
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mcopy -bspmQ -i "$1@@${START}S" ::EFI "$OUT"
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echo "Building OpenCore image..."
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cp "$2" "$OUT/EFI/OC/"
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MB=256
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CLUSTER=4
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START=2048
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SECTOR=512
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FIRST_LBA=34
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SIZE=$(( MB*1024*1024 ))
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OFFSET=$(( START*SECTOR ))
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TOTAL=$(( SIZE-(FIRST_LBA*SECTOR) ))
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LAST_LBA=$(( TOTAL/SECTOR ))
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COUNT=$(( LAST_LBA-(START-1) ))
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FILE="OpenCore.img"
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IMG="/tmp/$FILE"
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rm -f "$IMG"
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if ! truncate -s "$SIZE" "$IMG"; then
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rm -f "$IMG"
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echo "Could not allocate file $IMG for the OpenCore image." && exit 11
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fi
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PART="/tmp/partition.fdisk"
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{ echo "label: gpt"
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echo "label-id: 1ACB1E00-3B8F-4B2A-86A4-D99ED21DCAEB"
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echo "device: $FILE"
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echo "unit: sectors"
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echo "first-lba: $FIRST_LBA"
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echo "last-lba: $LAST_LBA"
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echo "sector-size: $SECTOR"
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echo ""
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echo "${FILE}1 : start=$START, size=$COUNT, type=C12A7328-F81F-11D2-BA4B-00A0C93EC93B, uuid=05157F6E-0AE8-4D1A-BEA5-AC172453D02C, name=\"primary\""
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} > "$PART"
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sfdisk -q "$IMG" < "$PART"
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echo "drive c: file=\"$IMG\" partition=0 offset=$OFFSET" > /etc/mtools.conf
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mformat -F -M "$SECTOR" -c "$CLUSTER" -T "$COUNT" -v "EFI" "C:"
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echo "Copying files to image..."
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mcopy -bspmQ "$OUT/EFI" "C:"
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rm -rf "$OUT"
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echo "Compressing image..."
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gzip -c "$IMG" > "$DST/$FILE.gz"
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rm -f "$IMG"
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echo "Finished succesfully!"
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