我在用libguestfs克隆虚拟机，在执行virt-copy-in -d操作时，报错
virt-copy-in: multi-boot operating systems are not supported
If using guestfish ‘-i’ option, remove this option and instead
use the commands ‘run’ followed by ‘list-filesystems’.
You can then mount filesystems you want by hand using the
‘mount’ or ‘mount-ro’ command.
If using guestmount ‘-i’, remove this option and choose the
filesystem(s) you want to see by manually adding ‘-m’ option(s).
Use ‘virt-filesystems’ to see what filesystems are available.
If using other virt tools, multi-boot operating systems won’t work
with these tools. Use the guestfish equivalent commands
(see the virt tool manual page).
请问该如何解决？