'Your Network is probably not using the DHCP protocol' while installing ubuntu on a virtual machine (turned out to be host machine difference)

Chan Kim

1/30/23, 12:21 PM

I'm now installing Ubuntu 20.04 on a virtual machine using qemu (I've done this 2-3 times before). But this time I'm getting this message:

Your Network is probably not using the DHCP protocol. Alternatively, the dhcp server may be slow or some network hardware is not working properly.

I'm doing this remote from home so I can't set the network to my host for DHCP now. Is there any way I can make the host machine act as a dhcp-server-enabled router? This is the final command to install the OS.

sudo LD_LIBRARY_PATH=/home/ckim/prj/abdsn/ab21sim/axpusim/build ./qemu-system-aarch64 -nographic -machine ab21q,gic-version=max -m 512M -cpu max -smp 4 \
-netdev user,id=vnet,hostfwd=:127.0.0.1:0-:22 -device virtio-net-pci,netdev=vnet \
-drive file=ab21q-ubuntu-20.04-image.img,if=none,id=drive0,cache=writeback -device virtio-blk,drive=drive0,bootindex=0 \
-drive file=ubuntu-20.04-mini.iso,if=none,id=drive1,cache=writeback -device virtio-blk,drive=drive1,bootindex=1 \
-drive file=flash0.img,format=raw,if=pflash -drive file=flash1.img,format=raw,if=pflash --enable-kvm

Host OS is also Ubuntu 20.04 on arm64 machine.

ADD : I tried the same procedure on my ubuntu 20.04 machine (x86_64 machine) and there is no problem. So it is the host difference.

0 + 0

networking

virtualization

qemu

dhcp

20.04

Chan Kim

1/30/23, 12:39 PM

@Artur Meinild sorry, host is also ubuntu 20.04 and arm64 machine. Not intel machine.

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: 'Your Network is probably not using the DHCP protocol' while installing ubuntu on a virtual machine (turned out to be host machine difference)

TH: 'เครือข่ายของคุณอาจไม่ได้ใช้โปรโตคอล DHCP' ขณะติดตั้ง Ubuntu บนเครื่องเสมือน (กลายเป็นความแตกต่างของเครื่องโฮสต์)

RO: „Rețeaua dvs. probabil nu utilizează protocolul DHCP” în timp ce instalați Ubuntu pe o mașină virtuală (s-a dovedit a fi o diferență cu mașina gazdă)

RU: «Возможно, ваша сеть не использует протокол DHCP» при установке ubuntu на виртуальную машину (оказалось, что разница в хост-машине)

VI: 'Mạng của bạn có thể không sử dụng giao thức DHCP' trong khi cài đặt Ubuntu trên máy ảo (hóa ra là sự khác biệt của máy chủ)

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