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87 lines
1.8 KiB
Bash
87 lines
1.8 KiB
Bash
#!/bin/sh
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#
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# Copyright (C) 2017-2019 Hamish Coleman
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#
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# Deal with copying the FL2 file from and to the ISO image
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#
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DIR="$1"
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case "$DIR" in
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from_iso) ;;
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to_iso) ;;
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ls) ;;
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*)
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echo direction is either from_iso, to_iso or ls
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exit 1
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;;
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esac
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shift
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ISO="$1"
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if [ ! -e "$ISO" ]; then
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echo iso file must exist
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exit 1
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fi
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shift
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if ! which mdir >/dev/null; then
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echo Fatal: It looks like you have not installed the mtools package
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exit 1
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fi
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# All the bios update iso images I have checked have had a fat16 filesystem
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# embedded in a dos mbr image as the el-torito ISO payload.
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# The offset value is bytes in decimal.
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FAT_OFFSET=$(scripts/geteltorito -c $ISO 2>/dev/null)
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if [ -z $FAT_OFFSET ]; then
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FAT_OFFSET=71680
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fi
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# If we just want to look at the contents, do that
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if [ "$DIR" = "ls" ]; then
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mdir -i "$ISO"@@"$FAT_OFFSET" -/ -b
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exit
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fi
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# The "external" filename - used in the linux filesystem
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FILENAME="$1"
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if [ -z "$FILENAME" ]; then
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echo need linux filename
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exit 1
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fi
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shift
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# The "internal" filename pattern to match - used in the BIOS update image
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INTPATTERN="$1"
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if [ -z "$INTPATTERN" ]; then
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echo need to specify the pattern to match the internal filenames with
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exit 1
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fi
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MATCH=$(mdir -i "$ISO"@@"$FAT_OFFSET" -/ -b |grep "$INTPATTERN")
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if [ -z "$MATCH" ]; then
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echo "Error: could not find any files in $ISO matching $INTPATTERN"
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exit 1
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fi
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if [ "$(echo "$MATCH" |wc -w)" -ne 1 ]; then
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echo "Error: $ISO has more than one matching file:"
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echo "$MATCH"
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exit 1
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fi
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from_iso() {
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mcopy -n -i "$ISO"@@"$FAT_OFFSET" "$MATCH" "$FILENAME"
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}
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to_iso() {
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if [ ! -f "$FILENAME" ]; then
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echo "Error: $FILENAME must exist"
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exit 1
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fi
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mcopy -m -o -i "$ISO"@@"$FAT_OFFSET" "$FILENAME" "$MATCH"
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}
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$DIR
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