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I'm migrating a HYPER-V Ubuntu VM Proxmox VE. It starts, but it has a network problem.

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Ubuntu 22.04 Hyper-V was installed and running on the virtual machine, I switched it to Proxmox 8.2.2, but my network is not working.

muru
  • 207,970
Kenan BAYRAM
  • 21
  • 22.04.4 LTS Ubuntu Hyper-v was installed and running on the virtual machine, I switched it to Proxmox 8.2.2. But my network is not working. – Kenan BAYRAM Jul 13 '24 at 08:12

2 Answers2

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If ifconfig is not showing another interface than the loopback, it may appear if you run "ifconfig -a" which shows all the interfaces, even the I configured ones. you have to configure the enp6s18 with the network to match proxmox.

Use netplan to configure the interface if you don't use the desktop https://ubuntu.com/server/docs/configuring-networks

sleepyhead
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  • As seen in the picture, my main problem is Virtio1 is disabled, how can I activate it? I think the problem will disappear when enabled. – Kenan BAYRAM Jul 16 '24 at 08:44
  • It's not enabled because it's not configured, you can configure it and use "netplan apply" or you can use the legacy ifconfig command "ifconfig enp6s18 up" to bring the nic up. "ifconfig -a" should have listed the nic even if it's down. – sleepyhead Jul 16 '24 at 08:55
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Solved my problem step by step

rm /etc/netplan/*.yaml

then shutdown ubuntu

Open proxmox VM hardware delete network adapter and then add new networkadapter

Start VM ubuntu

ifconfig

Seen adapter name enp6s18

sudo nano /etc/netplan/01-netcfg.yaml

write new yaml file insert

network:
  version: 2
  renderer: networkd
  ethernets:
    enp6s18:
      dhcp4: true

ctrl+o then ctrl+x save file

   sudo netplan apply

Now working my virtual machine Dhcp.

David DE
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Kenan BAYRAM
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