openwrt的链接和文件名可以在这里找到：https://downloads.openwrt.org/releases/22.03.2/targets/x86/64/
下面的所有文件名（openwrt-22.03.2-x86-64-generic-squashfs-combined-efi）都根据实际情况替换。
打开Shell然后输入：

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wget https://downloads.openwrt.org/releases/22.03.2/targets/x86/64/openwrt-22.03.2-x86-64-generic-squashfs-combined-efi.img.gz


apt install gzip
gunzip openwrt-22.03.2-x86-64-generic-squashfs-combined-efi.img.gz

qm importdisk 103 openwrt-22.03.2-x86-64-generic-squashfs-combined-efi.img local-lvm