Proxmox VE Kernel

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Introduction

Kernel versions in use in various Proxmox VE versions are listed here.

Linux Kernel

The Linux kernel is a Unix-like operating system kernel. Released under the GNU General Public License version 2 (GPLv2) and developed by contributors worldwide, Linux is one of the most prominent examples of free software.

Proxmox VE 4.x

The current stable 4.x release uses latest Ubuntu based kernel, which will be regularly updated. The first stable 4.0 release is based on 4.2 Linux kernel.

Since Proxmox VE 4.2 it is based on the 4.4 LTS Linux Kernel (using the Ubuntu 16.04 LTS Xenial Kernel as a base).

Proxmox VE 3.x

Proxmox VE 3.x supports currently two kernel branches. Support for 3.x will end in April 2016.

A Proxmox VE cluster can manage a mixed kernel setup. Depending on the features, some migrations are only possible between identical kernels or identical KVM versions.

Kernel 3.10

  • Latest KVM
  • NO OpenVZ support
  • LXC supported
  • based on RHEL7x
  • Default Kernel for 4.x

Kernel 2.6.32

  • Latest KVM
  • Stable OpenVZ
  • based on RHEL6x now
  • Default Kernel for 3.x and lower