35 lines
1.0 KiB
Bash
Executable File
35 lines
1.0 KiB
Bash
Executable File
#!/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 one empty partitions followed by the swap partition, then the
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# boot partition with the ./boot/zImage and then the rootfs partition.
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# The swap partition with type 82 is 128 MB since the DNS-313 has 64 MB of
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# memory so we assign twice of that as swap.
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# The boot partition must always be the third partition.
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# The user should use the first (blank) partition for user data storage,
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# this will typically be named /dev/sda1
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set $(ptgen -o $OUTPUT -h $head -s $sect -n -t 83 -p 0 -t 82 -p 128M -t 83 -p ${BOOTFSSIZE}M -t 83 -p ${ROOTFSSIZE}M)
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# Swapoffset and swapsize will be $1 and $2
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BOOTOFFSET="$(($3 / 512))"
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BOOTSIZE="$(($4 / 512))"
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ROOTFSOFFSET="$(($5 / 512))"
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ROOTFSSIZE="$(($6 / 512))"
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dd bs=512 if="$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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