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We have Azure VMs running Ubuntu 16.04.3 LTS that we would like to use the Azure Accelerated Networking feature on. The minimum kernel version needed is 4.11.0-1013, but currently with apt-get upgrade we can only get to 4.4.0-109-generic. Also apt list --installed linux* shows we are using the linux-virtual kernel package instead of the linux-azure kernel package.

Should we switch to the linux-azure kernel package and if so what are the steps for replacing linux-virtual with linux-azure? Currently lspci shows the Mellanox VF device is present but ethtool -S eth0 returns "no stats available" (presumably due to the older kernel).

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The following worked to switch from the linux-virtual package to the linux-azure package:

sudo apt install linux-azure
sudo apt purge linux-virtual 
sudo apt autoremove
sudo reboot

After a reboot we now see the updated kernel and stats for the Mellanox VF device:

uname -a
Linux MyVM 4.13.0-1005-azure #7-Ubuntu SMP Mon Jan 8 21:37:36 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

ethtool -S eth0 | grep vf_
     vf_rx_packets: 510
     vf_rx_bytes: 721043
     vf_tx_packets: 892
     vf_tx_bytes: 200765
     vf_tx_dropped: 0
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