MAAS, использующий PXE, не завершает присоединение

Следуя инструкциям в https://maas.io/install на блейд-сервере, я застрял на этапе регистрации. Загрузка PXE загружает образ, но после некоторого разумного ожидания больше ничего не происходит.Лезвие не показано в разделе «Машины». Это экран загрузки PXE:

Intel(R) Boot Agent XE v2.3.58
Copyright (C) 1997-2015, Intel Corporation

CLIENT MAC ADDR: <BLADE_2_MAC_ADDRESS>  GUID: <GUID>
CLIENT IP: 10.10.10.191  MASK: 255.255.255.0  DHCP IP: 10.10.10.1
GATEWAY IP: 10.10.10.254

PXELINUX 6.03 PXE 20171017 Copyright (C) 1994-2014 H. Peter Anvin et al
Booting under MAAS direction...
nomodeset ro root=squash:http://10.10.10.1:5248/images/ubuntu/amd64/ga-18.04/bio
nic/daily/squashfs ip=::::maas-enlist:BOOTIF ip6=off overlayroot=tmpfs overlayro
ot_cfgdisk=disabled cc:{'datasource_list': ['MAAS']}end_cc cloud-config-url=http
://10.10.10.1:5240/MAAS/metadata/latest/enlist-preseed/?op=get_enlist_preseed ap
parmor=0 log_host=10.10.10.1 log_port=514
Loading ubuntu/amd64/ga-18.04/bionic/daily/boot-kernel... ok
Loading ubuntu/amd64/ga-18.04/bionic/daily/boot-initrd...ok

Это журнал сервера при загрузке PXE блейд-сервера

myuser@blade-one:~$ tail -f /var/log/maas/rackd.log
2018-01-28 15:59:54 provisioningserver.rpc.clusterservice: [info] Fully connected to all 4 event-loops on all 1 region controllers (blade-one).
2018-01-28 15:59:55 provisioningserver.rpc.clusterservice: [info] Rack controller 'fddh8e' registered (via blade-one:pid=1748) with MAAS version 2.4.2-7034-g2f5deb8b8-0ubuntu1.
2018-01-28 15:59:55 provisioningserver.rpc.clusterservice: [info] Rack controller 'fddh8e' registered (via blade-one:pid=1750) with MAAS version 2.4.2-7034-g2f5deb8b8-0ubuntu1.
2018-01-28 15:59:55 provisioningserver.rpc.clusterservice: [info] Rack controller 'fddh8e' registered (via blade-one:pid=1751) with MAAS version 2.4.2-7034-g2f5deb8b8-0ubuntu1.
2018-01-28 15:59:55 provisioningserver.rpc.clusterservice: [info] Rack controller 'fddh8e' registered (via blade-one:pid=1749) with MAAS version 2.4.2-7034-g2f5deb8b8-0ubuntu1.
2018-01-28 15:59:55 provisioningserver.utils.services: [info] New interface monitoring state: {'enp5s0': {'neighbour': False, 'mdns': True}, 'enp6s0': {'neighbour': True, 'mdns': True}, 'ens1f0': {'neighbour': True, 'mdns': True}, 'ens1f1': {'neighbour': False, 'mdns': True}, 'virbr0': {'neighbour': True, 'mdns': True}}
2018-01-28 15:59:55 provisioningserver.utils.services: [info] Starting neighbour discovery for interfaces: {'ens1f0', 'virbr0', 'enp6s0'}
2018-01-28 15:59:55 provisioningserver.utils.services: [info] Neighbour observation process for ens1f0 started.
2018-01-28 15:59:55 provisioningserver.utils.services: [info] Neighbour observation process for virbr0 started.
2018-01-28 15:59:55 provisioningserver.utils.services: [info] Neighbour observation process for enp6s0 started.
2018-01-28 15:59:55 provisioningserver.utils.services: [info] mDNS observation process started.
2018-01-28 15:59:55 sstreams: [info] maas:v2:download/maas:boot:grub-efi-signed:amd64:generic:uefi: to_add=['20190404.0'] to_remove=[]
2018-01-28 15:59:55 sstreams: [info] maas:v2:download/maas:boot:grub-efi:arm64:generic:uefi: to_add=['20190404.0'] to_remove=[]
2018-01-28 15:59:55 sstreams: [info] maas:v2:download/maas:boot:grub-ieee1275:ppc64el:generic:open-firmware: to_add=['20190506.0'] to_remove=[]
2018-01-28 15:59:55 sstreams: [info] maas:v2:download/maas:boot:pxelinux:i386:generic:pxe: to_add=['20180807.0'] to_remove=[]
2018-01-28 15:59:55 sstreams: [info] maas:v2:download/maas:boot:ubuntu:amd64:ga-18.04-lowlatency:bionic: to_add=['20190814'] to_remove=[]
2018-01-28 15:59:55 sstreams: [info] maas:v2:download/maas:boot:ubuntu:amd64:ga-18.04:bionic: to_add=['20190814'] to_remove=[]
2018-01-28 15:59:55 sstreams: [info] maas:v2:download/maas:boot:ubuntu:amd64:hwe-18.04-edge:bionic: to_add=['20190814'] to_remove=[]
2018-01-28 15:59:55 sstreams: [info] maas:v2:download/maas:boot:ubuntu:amd64:hwe-18.04-lowlatency-edge:bionic: to_add=['20190814'] to_remove=[]
2018-01-28 15:59:55 sstreams: [info] maas:v2:download/maas:boot:ubuntu:amd64:hwe-18.04-lowlatency:bionic: to_add=['20190814'] to_remove=[]
2018-01-28 15:59:55 sstreams: [info] maas:v2:download/maas:boot:ubuntu:amd64:hwe-18.04:bionic: to_add=['20190814'] to_remove=[]
2018-01-28 15:59:56 provisioningserver.utils.services: [info] observe-arp[ens1f0]: tcpdump: listening on ens1f0, link-type EN10MB (Ethernet), capture size 64 bytes
2018-01-28 15:59:56 provisioningserver.utils.services: [info] observe-arp[virbr0]: tcpdump: listening on virbr0, link-type EN10MB (Ethernet), capture size 64 bytes
2019-08-21 11:39:16 provisioningserver.utils.services: [info] observe-arp[enp6s0]: tcpdump: listening on enp6s0, link-type EN10MB (Ethernet), capture size 64 bytes
2019-08-21 11:39:19 provisioningserver.rackdservices.dhcp_probe_service: [info] Probe for external DHCP servers started on interfaces: ens1f0, enp6s0, virbr0.
2019-08-21 11:39:39 provisioningserver.dhcp.detect: [info] External DHCP server(s) discovered on interface 'enp6s0': <OFFICE_DHCP_SERVER_IP>
2019-08-21 11:39:49 provisioningserver.rackdservices.dhcp_probe_service: [info] External DHCP probe complete.
2019-08-21 11:47:39 provisioningserver.rackdservices.tftp: [info] pxelinux.0 requested by <BLADE_2_MAC_ADDRESS>
2019-08-21 11:47:39 provisioningserver.rackdservices.tftp: [info] pxelinux.0 requested by <BLADE_2_MAC_ADDRESS>
2019-08-21 11:47:39 provisioningserver.rackdservices.tftp: [info] ldlinux.c32 requested by <BLADE_2_MAC_ADDRESS>
2019-08-21 11:47:39 provisioningserver.rackdservices.tftp: [info] pxelinux.cfg/40a55f1c-cea7-e511-bb26-020ba5d5cb1c requested by <BLADE_2_MAC_ADDRESS>
2019-08-21 11:47:39 provisioningserver.rackdservices.tftp: [info] pxelinux.cfg/<BLADE_2_MAC_ADDRESS_WITH_DASHES> requested by <BLADE_2_MAC_ADDRESS>
2019-08-21 11:47:39 provisioningserver.rackdservices.tftp: [info] pxelinux.cfg/0A0A0ABF requested by <BLADE_2_MAC_ADDRESS>
2019-08-21 11:47:39 provisioningserver.rackdservices.tftp: [info] pxelinux.cfg/0A0A0AB requested by <BLADE_2_MAC_ADDRESS>
2019-08-21 11:47:39 provisioningserver.rackdservices.tftp: [info] pxelinux.cfg/0A0A0A requested by <BLADE_2_MAC_ADDRESS>
2019-08-21 11:47:39 provisioningserver.rackdservices.tftp: [info] pxelinux.cfg/0A0A0 requested by <BLADE_2_MAC_ADDRESS>
2019-08-21 11:47:39 provisioningserver.rackdservices.tftp: [info] pxelinux.cfg/0A0A requested by <BLADE_2_MAC_ADDRESS>
2019-08-21 11:47:39 provisioningserver.rackdservices.tftp: [info] pxelinux.cfg/0A0 requested by <BLADE_2_MAC_ADDRESS>
2019-08-21 11:47:39 provisioningserver.rackdservices.tftp: [info] pxelinux.cfg/0A requested by <BLADE_2_MAC_ADDRESS>
2019-08-21 11:47:39 provisioningserver.rackdservices.tftp: [info] pxelinux.cfg/0 requested by <BLADE_2_MAC_ADDRESS>
2019-08-21 11:47:39 provisioningserver.rackdservices.tftp: [info] pxelinux.cfg/default requested by <BLADE_2_MAC_ADDRESS>
2019-08-21 11:47:39 provisioningserver.rackdservices.tftp: [info] ubuntu/amd64/ga-18.04/bionic/daily/boot-kernel requested by <BLADE_2_MAC_ADDRESS>
2019-08-21 11:47:40 provisioningserver.rackdservices.tftp: [info] ubuntu/amd64/ga-18.04/bionic/daily/boot-initrd requested by <BLADE_2_MAC_ADDRESS>
2019-08-21 11:48:11 rackd: [info] 10.10.10.191 GET /images/ubuntu/amd64/ga-18.04/bionic/daily/squashfs HTTP/1.1 --> 200 OK (referrer: -; agent: Wget)
2019-08-21 11:49:09 provisioningserver.rackdservices.dhcp_probe_service: [info] Probe for external DHCP servers started on interfaces: ens1f0, enp6s0, virbr0.
2019-08-21 11:49:29 provisioningserver.dhcp.detect: [info] External DHCP server(s) discovered on interface 'enp6s0': <OFFICE_DHCP_SERVER_IP>

Blade 1, где установлен MAAS, - Ubuntu 18.04.3 LTS (GNU / Linux 4.15.0-58-generic x86_64) , а MAAS - 2.4.2-7034-g2f5deb8b8-0ubuntu1

Я выполнил следующие шаги для установки:

• Установил пакет maas с помощью sudo apt install maas
• Добавил первый пользователь с правами администратора с sudo maas init (не добавлял никаких ключей ssh)
• Авторизовался на http: //: 5240 / MAAS / и оставил все со значениями по умолчанию. На шаге ключей добавлен ключ ssh, сгенерированный для сервера Blade-One
• . В разделе «Подсети» осуществлен доступ к VLAN для подсети, в которой другие блейды будут загружаться по протоколу PXE, и выполнен «Provide DHCP»
• Настроен Blade 2 для загрузки и загрузки PXE.