Windows 10 failed boot at BSOD(0x7b)

[593749519]

I followed the windrbd-boot.pdf to configure the enviorment, after some http issue(using tftp and enable cgi for apache2), finally I can boot windows 10 to BSOD(0x7b-Inaccessible boot device), what do I misconfigured?

These are my configurations:
Virtualbox version(with extension pack): 7.04
Windrbd Windows driver version: 1.13
Linux box: Ubuntu 20.04 desktop IP address:192.168.56.2
Drbd version: 9.2.1 /dev/sdb->(50G with 50M meta) /dev/sdc ->windows(50G), 1 partition
Windows box version: 10.0.19041.264 IP address:192.168.56.10
-----------------dhcpd.conf------------------
allow booting;
allow bootp;

option space ipxe;
option ipxe-encap-opts code 175 = encapsulate ipxe;
option ipxe.priority code 1 = signed integer 8;
option ipxe.keep-san code 8 = unsigned integer 8;
option ipxe.skip-san-boot code 9 = unsigned integer 8;
option ipxe.syslogs code 85 = string;
option ipxe.cert code 91 = string;
option ipxe.privkey code 92 = string;
option ipxe.crosscert code 93 = string;
option ipxe.no-pxedhcp code 176 = unsigned integer 8;
option ipxe.bus-id code 177 = string;
option ipxe.san-filename code 188 = string;
option ipxe.bios-drive code 189 = unsigned integer 8;
option ipxe.username code 190 = string;
option ipxe.password code 191 = string;
option ipxe.reverse-username code 192 = string;
option ipxe.reverse-password code 193 = string;
option ipxe.version code 235 = string;
option iscsi-initiator-iqn code 203 = string;
option ipxe.pxeext code 16 = unsigned integer 8;
option ipxe.iscsi code 17 = unsigned integer 8;
option ipxe.aoe code 18 = unsigned integer 8;
option ipxe.http code 19 = unsigned integer 8;
option ipxe.https code 20 = unsigned integer 8;
option ipxe.tftp code 21 = unsigned integer 8;
option ipxe.ftp code 22 = unsigned integer 8;
option ipxe.dns code 23 = unsigned integer 8;
option ipxe.bzimage code 24 = unsigned integer 8;
option ipxe.multiboot code 25 = unsigned integer 8;
option ipxe.slam code 26 = unsigned integer 8;
option ipxe.srp code 27 = unsigned integer 8;
option ipxe.nbi code 32 = unsigned integer 8;
option ipxe.pxe code 33 = unsigned integer 8;
option ipxe.elf code 34 = unsigned integer 8;
option ipxe.comboot code 35 = unsigned integer 8;
option ipxe.efi code 36 = unsigned integer 8;
option ipxe.fcoe code 37 = unsigned integer 8;
option ipxe.vlan code 38 = unsigned integer 8;
option ipxe.menu code 39 = unsigned integer 8;
option ipxe.sdi code 40 = unsigned integer 8;
option ipxe.nfs code 41 = unsigned integer 8;

option ipxe.windrbd code 42 = unsigned integer 8;
option ipxe.windrbd-root code 196 = string;

default-lease-time 600;
max-lease-time 7200;

ddns-update-style none;

subnet 192.168.56.0 netmask 255.255.255.0 {
range 192.168.56.10 192.168.56.200;
option domain-name-servers 114.114.114.114;
option subnet-mask 255.255.255.0;
option routers 192.168.56.1;
option broadcast-address 192.168.56.255;
default-lease-time 600;
max-lease-time 7200;
}

host windows10-boot {
hardware ethernet 08:00:27:40:83:3a;
fixed-address 192.168.56.10;
if exists ipxe.windrbd {
filename "";
option root-path "http://192.168.56.2/cgi-bin/drbd.cgi?DRBD_MINOR=42";
option ipxe.windrbd-root "drbd:windows10-boot;C;2;0.0.0.0:7690;1;1;lyc-VirtualBox;1;192.168.56.2:7690";
} else {
filename "ipxe-windrbd.pxe";
}
}

------------windows10-boot.res------------
include "global_common.conf";

resource "windows10-boot" {
protocol C;

net {
use-rle no;
verify-alg crc32c;
timeout 60;
ping-timeout 30;
ping-int 10;
connect-int 20;
}
disk {
c-max-rate 4048000;
c-fill-target 1048000;
}
on lyc-VirtualBox {
address 192.168.56.2:7691;
node-id 1;
volume 1 {
disk /dev/sdc;
device /dev/drbd42;
meta-disk /dev/sdb1;
}
}
on windows10 {
address 192.168.56.10:7690;
node-id 2;
volume 1 {
disk none;
device minor 42; # C: on diskless client
}
}
}

Finally, when boot windows under drbdadm watch, get following info:

after reading those data, no further response, eventually, windows BSOD with 0x7b(Inaccessible boot devices).

[593749519]

using boot-windows.ipxe methods instead of dhcp option solves the problem.