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29 lines
678 B
Bash
29 lines
678 B
Bash
#!/bin/sh
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set -x
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[ $# -eq 5 ] || {
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echo "SYNTAX: $0 <file> <bootfs image> <rootfs image> <bootfs size> <rootfs size>"
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exit 1
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}
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OUTPUT="$1"
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BOOTFS="$2"
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ROOTFS="$3"
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BOOTFSSIZE="$4"
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ROOTFSSIZE="$5"
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head=4
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sect=63
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# Create two empty partitions followed by the boot partition with
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# the ./boot/zImage and then the rootfs partition.
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set $(ptgen -o $OUTPUT -h $head -s $sect -t 83 -n -p 0 -p 0 -p ${BOOTFSSIZE}M -p ${ROOTFSSIZE}M)
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BOOTOFFSET="$(($1 / 512))"
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BOOTSIZE="$(($2 / 512))"
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ROOTFSOFFSET="$(($3 / 512))"
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ROOTFSSIZE="$(($4 / 512))"
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dd bs=512 if="$BOOTFS" of="$OUTPUT" seek="$BOOTOFFSET" conv=notrunc
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dd bs=512 if="$ROOTFS" of="$OUTPUT" seek="$ROOTFSOFFSET" conv=notrunc
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