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[提交译文][news]: 20220420 AlmaLinux 9.0 Beta Is Here, Ready to Replace to RHEL 9.md
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[#]: subject: "AlmaLinux 9.0 Beta Is Here, Ready to Replace to RHEL 9"
[#]: via: "https://news.itsfoss.com/almalinux-9-0-beta-release/"
[#]: author: "Jacob Crume https://news.itsfoss.com/author/jacob/"
[#]: collector: "lujun9972"
[#]: translator: "lkxed"
[#]: reviewer: " "
[#]: publisher: " "
[#]: url: " "
AlmaLinux 9.0 Beta Is Here, Ready to Replace to RHEL 9
======
AlmaLinux, the popular enterprise Linux distro, has just announced its 9.0 Beta release to keep up with the upstream, i.e. RHEL 9.
Just to give you some context, AlmaLinux was introduced in the early 2021 to replace the then recently discontinued CentOS. One of its main goals was to be a drop-in replacement for RHEL, specifically needing to be 100% binary compatible.
Not to forget, AlmaLinux is free, making it [one of the best RHEL alternatives][1].
As to be expected with a stability-focused distro, it doesn’t have many new features. It does, however, have quite a few package updates, which we will be looking at here.
Let’s take a look!
### What’s New?
As an RHEL clone, it inherits almost all the features of the RHEL 9.0 Beta.
* [Linux kernel 5.14][2]
* SELinux performance improvements
* Updated packages
#### Linux Kernel 5.14
Definitely, the largest upgrade, Linux Kernel 5.14 brings newer hardware support among a variety of other improvements. Although not particularly relevant to the target audience of AlmaLinux, it did include a hot-unplug feature for Radeon cards that I appreciate.
Other than that, it was a pretty minor release, with its biggest selling point perhaps being that it was [released right after the 30th anniversary of Linux][2].
#### Improved SELinux Performance
![][3]
SELinux has always resulted in a slight performance hit, as with all security measures. While this has been mostly minimal, it could always have been improved, which seems to have happened in this release.
As demonstrated in a Red Hat [blog post][4], some of these performance improvements are quite significant. As can be seen, from the above graph, the performance of SELinux in Linux kernel 5.14 (blue) is significantly better than Linux kernel 5.6 (red) in the displayed metrics.
Overall, the performance has improved, to include the overhead (~30 MB to ~15 MB) and the file creation time (~55 ms to ~44 ms).
#### Updated Packages
This release comes with a boatload of package updates. Some of the more significant ones include Git 2.31, PHP 8.0, Perl 5.32, and MySQL 8.0. GCC has also been updated to its 11.2 release.
The result of all this should be better compatibility with more modern standards.
There were also packages that were removed in comparison to the upstream. For a full list of changes, please refer to the [official release notes][5].
### Wrapping Up
Overall, AlmaLinux 9.0 is shaping up to be quite a nice release, especially seeing the improvements in this beta release.
AlmaLinux 9.0 Beta is available for architectures including x86_64, aarch64, ppc64le, and s390x. If you want to try out AlmaLinux 9.0 beta, head to its website from the button below.
[AlmaLinux 9.0 Beta][6]
Note that it is not ready for production servers and is only meant for testing.
_Are you going to be switching from CentOS to AlmaLinux? Let us know in the comments below!_
--------------------------------------------------------------------------------
via: https://news.itsfoss.com/almalinux-9-0-beta-release/
作者：[Jacob Crume][a]
选题：[lujun9972][b]
译者：[译者ID](https://github.com/译者ID)
校对：[校对者ID](https://github.com/校对者ID)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
[a]: https://news.itsfoss.com/author/jacob/
[b]: https://github.com/lujun9972
[1]: https://itsfoss.com/rhel-based-server-distributions/
[2]: https://news.itsfoss.com/kernel-5-14-release/
[3]: data:image/svg+xml;base64,PHN2ZyBoZWlnaHQ9Ijc2OCIgd2lkdGg9IjEwMjQiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgdmVyc2lvbj0iMS4xIi8+
[4]: https://www.redhat.com/en/blog/improving-performance-and-space-efficiency-selinux
[5]: https://wiki.almalinux.org/release-notes/9.0-beta.html
[6]: https://mirrors.almalinux.org/isos.html

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[#]: subject: "AlmaLinux 9.0 Beta Is Here, Ready to Replace to RHEL 9"
[#]: via: "https://news.itsfoss.com/almalinux-9-0-beta-release/"
[#]: author: "Jacob Crume https://news.itsfoss.com/author/jacob/"
[#]: collector: "lujun9972"
[#]: translator: "lkxed"
[#]: reviewer: " "
[#]: publisher: " "
[#]: url: " "
AlmaLinux 9.0 测试版来了，与 RHEL 9 同步
======
AlmaLinux 是一个流行的企业级 Linux 发行版，它刚刚宣布其 9.0 测试版，以和上游系统（RHEL 9）保持同步。
让我先来提供一些背景介绍吧。AlmaLinux 在 2021 年初推出，以取代当时刚停产的 CentOS。它的主要目标之一是成为 RHEL 的替代品，特别是需要达到 100% 的二进制兼容。
不要忘了，AlmaLinux 是免费的，这使得它成为 [最好的 RHEL 替代品之一][1]。
作为一个注重稳定性的发行版，它并没有很多新的功能。不过，它确实有很多软件包的更新，本文将介绍逐一它们。
让我们来看一看吧！
### 有什么新功能？
As an RHEL clone, it inherits almost all the features of the RHEL 9.0 Beta.
作为 RHEL 的克隆版，它几乎继承了 RHEL 9.0 测试版的所有功能。
* [Linux 5.14 内核][2]
* SELinux 性能改进
* 更新的软件包
#### Linux 5.14 内核
这绝对是最大的升级，Linux 5.14 内核带来了更新的硬件支持和其他各种改进。虽然与 AlmaLinux 的目标用户不是特别相关，但它确实包括了我很欣赏的 Radeon 卡的热拔插功能。
除此之外，这是一个相当小的版本，它最大的卖点可能是 [紧跟在 Linux 30 周年之后发布][2]。
#### SELinux 性能改进
![][3]
和所有的安全措施一样，SELinux 总是会对性能产生轻微的影响。虽然这在很大程度上是最小的，但它总是还有改进空间，而这个版本貌似就有性能改进。
正如红帽 [博文][4] 中所展示的那样，其中一些性能改进是相当显著的。从上图可以看出，在显示的指标中，Linux 5.14 内核（蓝色）的 SELinux 性能明显好于Linux 5.6 内核（红色）。
总的来说，性能有所提升，包括开销（从大约 30 MB 提升至大约 15 MB）和文件创建时间（从大约 55 ms 提升至大约 44 ms）。
#### 更新的软件包
这个版本包含了大量的软件包更新。其中一些比较重要的包括 Git 2.31、PHP 8.0、Perl 5.32 和 MySQL 8.0。GCC 也更新到了 11.2 版本。
有了这些更新，它应该是对更多现代标准有更好的兼容性。
与上游相比，它也有一些软件包被删除。关于完整的变化列表，请参考 [官方发布说明][5]。
### 总结
总的来说，我认为 AlmaLinux 9.0 正在成为一个相当不错的版本，特别是当我看到了这个测试版中的改进。
AlmaLinux 9.0 测试版可用于 x86_64、arch64、ppc64le 和s390x 等架构。如果你想试用 AlmaLinux 9.0 测试版，请点击下方链接前往它的官网。
[AlmaLinux 9.0 测试版][6]
请注意，它还没有准备好用于生产服务器，目前仅限于测试使用。
_你打算从 CentOS 转到 AlmaLinux 吗？请在下面的评论中告诉我们吧！_
--------------------------------------------------------------------------------
via: https://news.itsfoss.com/almalinux-9-0-beta-release/
作者：[Jacob Crume][a]
选题：[lujun9972][b]
译者：[lkxed](https://github.com/lkxed)
校对：[校对者ID](https://github.com/校对者ID)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
[a]: https://news.itsfoss.com/author/jacob/
[b]: https://github.com/lujun9972
[1]: https://itsfoss.com/rhel-based-server-distributions/
[2]: https://news.itsfoss.com/kernel-5-14-release/
[3]: data:image/svg+xml;base64,PHN2ZyBoZWlnaHQ9Ijc2OCIgd2lkdGg9IjEwMjQiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgdmVyc2lvbj0iMS4xIi8+
[4]: https://www.redhat.com/en/blog/improving-performance-and-space-efficiency-selinux
[5]: https://wiki.almalinux.org/release-notes/9.0-beta.html
[6]: https://mirrors.almalinux.org/isos.html