azure - Ubuntu Server 22_04-lts-gen2 中的 gen2 是什么意思？

Question

我是 Azure VM 新手，希望拥有最新的 Ubuntu Server 稳定 LTS 版本。然而，图像列表对我来说不太清楚:

az vm image list -o table --all --publisher Canonical --offer Ubuntu --sku 22_04-lts --architecture x64
// ...
x64             0001-com-ubuntu-server-jammy           Canonical    22_04-lts               Canonical:0001-com-ubuntu-server-jammy:22_04-lts:22.04.202302280                22.04.202302280
x64             0001-com-ubuntu-server-jammy           Canonical    22_04-lts-gen2          Canonical:0001-com-ubuntu-server-jammy:22_04-lts-gen2:22.04.202204200           22.04.202204200

22_04-lts 和 22_04-lts-gen2 有什么区别？ 22_04-lts-gen2 是版本 22.04.2 的另一种说法吗？

Answer 1

第 2 代虚拟机比前几代有一些改进:

Generation 2 VMs support key features that aren't supported in generation 1 VMs. These features include increased memory, Intel Software Guard Extensions (Intel SGX), and virtualized persistent memory (vPMEM). Generation 2 VMs running on-premises, have some features that aren't supported in Azure yet.

Generation 2 VMs use the new UEFI-based boot architecture rather than the BIOS-based architecture used by generation 1 VMs. Compared to generation 1 VMs, generation 2 VMs might have improved boot and installation times.

( Source )