29 lines
617 B
Bash
Executable File
29 lines
617 B
Bash
Executable File
#!/bin/sh
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set -e -x
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if [ $# -ne 5 ]; then
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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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fi
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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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align=4096
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head=4
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kernel_type=c
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rootfs_type=83
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sect=63
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set $(ptgen -o $OUTPUT -h $head -s $sect -l $align -t $kernel_type -p ${BOOTFSSIZE}M -t $rootfs_type -p ${ROOTFSSIZE}M ${SIGNATURE:+-S 0x$SIGNATURE})
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BOOTOFFSET="$(($1 / 512))"
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ROOTFSOFFSET="$(($3 / 512))"
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dd bs=512 if="$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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