已经在蓝屏安装界面
选择了语言区域键盘后
出现提示 "detect and mount installation media"
no device for installation media was detected

yes之后 还是错 "cannot read removable media"

grub启动菜单项是这么设置的
nano  /etc/grub.d/40_custom
menuentry "debian11.iso" {
    set iso_path="/debian-11.0.0-amd64-netinst.iso"
    loopback loop (hd1)/$iso_path
    linux (loop)/install.amd/vmlinuz inst.stage2=hd:UUID=d5e5e6c0-9ae3-488f-8a0a-9a0aadb67ee7 noeject iso-scan/filename=$iso_path
    initrd (loop)/install.amd/initrd.gz
}

错在什么地方了呢？
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FROM 27.223.78.*