mirror of
https://github.com/Lienol/openwrt
synced 2025-01-09 03:58:13 +08:00
63f8c1db2a
Add EFI bootable images for x86 platforms. These images can also boot from legacy BIOS. And iso images can boot from EFI now. EFI System Partition need to be fat12/fat16/fat32 (not need to load filesystem drivers), so the first partition of EFI images are not ext4 filesystem any more. GPT partition table has an alternate partition table, we did not generate it. This may cause problems when use these images as qemu disk, kernel can not find rootfs, we pad enough sectors will be ok. Signed-off-by: 李国 <uxgood.org@gmail.com> x86: fix sysupgrade for EFI images 1. make function get_partitions support GPT disks 2. get more bytes from image to get GPT partition table 3. update the original PARTUUID to new grub.cfg Signed-off-by: 李国 <uxgood.org@gmail.com>
42 lines
1.3 KiB
Bash
Executable File
42 lines
1.3 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Copyright (C) 2006-2012 OpenWrt.org
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set -e -x
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[ $# == 5 -o $# == 6 ] || {
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echo "SYNTAX: $0 <file> <kernel size> <kernel directory> <rootfs size> <rootfs image> [<align>]"
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exit 1
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}
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OUTPUT="$1"
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KERNELSIZE="$2"
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KERNELDIR="$3"
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ROOTFSSIZE="$4"
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ROOTFSIMAGE="$5"
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ALIGN="$6"
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rm -f "$OUTPUT"
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head=16
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sect=63
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cyl=$(( ($KERNELSIZE + $ROOTFSSIZE) * 1024 * 1024 / ($head * $sect * 512)))
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# create partition table
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set `ptgen -o "$OUTPUT" -h $head -s $sect ${EFI_SIGNATURE:+-g} -p ${KERNELSIZE}m -p ${ROOTFSSIZE}m ${ALIGN:+-l $ALIGN} ${SIGNATURE:+-S 0x$SIGNATURE} ${EFI_SIGNATURE:+-G $EFI_SIGNATURE}`
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KERNELOFFSET="$(($1 / 512))"
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KERNELSIZE="$2"
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ROOTFSOFFSET="$(($3 / 512))"
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ROOTFSSIZE="$(($4 / 512))"
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[ -n "$PADDING" ] && dd if=/dev/zero of="$OUTPUT" bs=512 seek="$ROOTFSOFFSET" conv=notrunc count="$ROOTFSSIZE"
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dd if="$ROOTFSIMAGE" of="$OUTPUT" bs=512 seek="$ROOTFSOFFSET" conv=notrunc
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if [ -n "$EFI_SIGNATURE" ]; then
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[ -n "$PADDING" ] && dd if=/dev/zero of="$OUTPUT" bs=512 seek="$(($ROOTFSOFFSET + $ROOTFSSIZE))" conv=notrunc count="$sect"
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mkfs.fat -C "$OUTPUT.kernel" -S 512 "$(($KERNELSIZE / 1024))"
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mcopy -s -i "$OUTPUT.kernel" "$KERNELDIR"/* ::/
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else
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make_ext4fs -J -l "$KERNELSIZE" "$OUTPUT.kernel" "$KERNELDIR"
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fi
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dd if="$OUTPUT.kernel" of="$OUTPUT" bs=512 seek="$KERNELOFFSET" conv=notrunc
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rm -f "$OUTPUT.kernel"
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