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我需要创建一个软盘文件来挂载和复制文件。我还需要更改mbr。当我这样做时:

mkdir -p disk_images

rm disk_images/floppy.flp

dd if=/dev/zero of=disk_images/floppy.flp bs=1k count=1440

mkdosfs -F 32 disk_images/floppy.flp

mkdir floppydisk

dd status=noxfer conv=notrunc if=build/boot.bin of=disk_images/floppy.flp

sudo mount -t vfat -o loop,defaults disk_images/floppy.flp floppydisk

我得到错误

mount: /home/user/myos/floppydisk: wrong fs type, bad option, bad superblock on /dev/loop13, missing codepage or helper program, or other error.

省略最后一个 dd 有效,但那样,我无法控制 mbr。

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