Difference between revisions of "Kernel versioning"
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== Versioning == | == Versioning == | ||
| − | OpenVZ kernel versions | + | === New-style versioning === |
| + | |||
| + | Currently all new OpenVZ kernels has a simple version like <tt>2.6.n-ovzXXX</tt> | ||
| + | |||
| + | * '''2.6.n''' is a vanilla kernel version, e.g. 2.6.20 or 2.6.22, which this OpenVZ kernel is based on; | ||
| + | * '''ovzXXX''' is the OpenVZ kernel version, e.g. ovz001 for the very first one. | ||
| + | |||
| + | === Old-style versioning === | ||
| + | |||
| + | Some time ago OpenVZ kernel versions were named like <tt>2.6.n-XXXtestYYY.z</tt> and <tt>2.6.n-XXXstabYYY.z</tt>. | ||
* '''2.6.n''' is a vanilla kernel version (i.e. the one from [http://kernel.org/ kernel.org]) which this OpenVZ kernel is based on. | * '''2.6.n''' is a vanilla kernel version (i.e. the one from [http://kernel.org/ kernel.org]) which this OpenVZ kernel is based on. | ||
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* '''z''' is an add-on number; it is used as rpm's <tt>Release</tt> field and in most cases is set to 1. | * '''z''' is an add-on number; it is used as rpm's <tt>Release</tt> field and in most cases is set to 1. | ||
| − | == Cycle == | + | This style is kept for some kernels that started before switching to the new versioning. |
| + | |||
| + | === Cycle === | ||
Usual kernel development cycle looks like this: | Usual kernel development cycle looks like this: | ||
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A few kernel branches may be developed in parallel. For example, as of 13th of June, 2006, there are four branches: | A few kernel branches may be developed in parallel. For example, as of 13th of June, 2006, there are four branches: | ||
| − | * stable, based on 2.6.8 | + | * stable, based on 2.6.8 |
| − | * development, based on 2.6.16 | + | * development, based on 2.6.16 |
| − | * FC5, based on latest Fedora Core 5 kernel | + | * FC5, based on latest Fedora Core 5 kernel |
| − | * SUSE10, based on latest SUSE10 kernel | + | * SUSE10, based on latest SUSE10 kernel |
[[Category: Kernel]] | [[Category: Kernel]] | ||
Revision as of 09:55, 27 August 2007
Versioning
New-style versioning
Currently all new OpenVZ kernels has a simple version like 2.6.n-ovzXXX
- 2.6.n is a vanilla kernel version, e.g. 2.6.20 or 2.6.22, which this OpenVZ kernel is based on;
- ovzXXX is the OpenVZ kernel version, e.g. ovz001 for the very first one.
Old-style versioning
Some time ago OpenVZ kernel versions were named like 2.6.n-XXXtestYYY.z and 2.6.n-XXXstabYYY.z.
- 2.6.n is a vanilla kernel version (i.e. the one from kernel.org) which this OpenVZ kernel is based on.
- XXX is a major OpenVZ kernel version number, which usually changes from release to release, or when dramatic changes to the kernel are made.
- test series kernels are unstable kernel releases, which are usually under extensive development, while stab series kernels are more or less stable kernel releases which are close to be released or are in production already.
- YYY is a minor OpenVZ kernel version number, which changes from build to build, when bugfixes or small feature changes were made.
- z is an add-on number; it is used as rpm's Release field and in most cases is set to 1.
This style is kept for some kernels that started before switching to the new versioning.
Cycle
Usual kernel development cycle looks like this:
021test000 → 021test001 → ... → 021test012 → here kernel is declared stable → 021stab000 → 021stab001 → ... → 021stab023
Branches
A few kernel branches may be developed in parallel. For example, as of 13th of June, 2006, there are four branches:
- stable, based on 2.6.8
- development, based on 2.6.16
- FC5, based on latest Fedora Core 5 kernel
- SUSE10, based on latest SUSE10 kernel
