Questions about kernel versions, ext4

[gkovacs]

According to the OpenVZ Wiki, the stable version of the OpenVZ kernel is currently 2.6.18, while the kernel used by Proxmox VE is 2.6.24, which is listed as a "development" branch.

1. How does the Proxmox staff choose which OpenVZ kernel version to include, and why did you decide on a development branch?

2. When is it expected to jump to 2.6.26 or 2.6.27 (the next development versions), and what are the factors behind that decision?

3. How much time do you expect the OpenVZ team will take to reach 2.6.28 or 2.6.30 (stable ext4 kernel versions), or has ext4 been backported to earlier kernels?

4. Is there any other way to use ext4 under the current Proxmox VE as a default filesystem?

 

[tom]

According to the OpenVZ Wiki, the stable version of the OpenVZ kernel is currently 2.6.18, while the kernel used by Proxmox VE is 2.6.24, which is listed as a "development" branch.

1. How does the Proxmox staff choose which OpenVZ kernel version to include, and why did you decide on a development branch?

Because we needed a higher Kernel to include KVM in a good way.

2. When is it expected to jump to 2.6.26 or 2.6.27 (the next development versions), and what are the factors behind that decision?

As soon as there are significant improvements - OpenVZ in 2.6.26 and 2.6.27 are not really more stable than the 2.6.24 branch.

3. How much time do you expect the OpenVZ team will take to reach 2.6.28 or 2.6.30 (stable ext4 kernel versions), or has ext4 been backported to earlier kernels?

There is no schedule published for this (from the OpenVZ team). There are rumors that they will stop to support 2.6.24 and 2.6.26 but nothing fixed yet.

4. Is there any other way to use ext4 under the current Proxmox VE as a default filesystem?

makes no sense as the only stable and tested filesystem for OpenVZ is ext3. For KVM guests, ext4 can be used (inside).

 

[dietmar]

According to the OpenVZ Wiki, the stable version of the OpenVZ kernel is currently 2.6.18, while the kernel used by Proxmox VE is 2.6.24, which is listed as a "development" branch.

1. How does the Proxmox staff choose which OpenVZ kernel version to include, and why did you decide on a development branch?

We use the ubuntu 2.6.24 branch, which was announced to be officially supported.

2. When is it expected to jump to 2.6.26 or 2.6.27 (the next development versions), and what are the factors behind that decision?

This depends on the OpenVZ team - we will switch whenever they annouce (officially) to support something newer.

3. How much time do you expect the OpenVZ team will take to reach 2.6.28 or 2.6.30 (stable ext4 kernel versions),

AFAIK, there is no plan to do that (but you should ask on the OpenVZ list instead).

4. Is there any other way to use ext4 under the current Proxmox VE as a default filesystem?

don't know that.