关于 Ubuntu 20.04 你应该了解的事情
Ubuntu
[Ubuntu 20.04](/article-12142-1.html) 已经发布，你可能对升级、安装等有一些问题和疑问。


我在各种社交媒体渠道上主持了一些问答环节，回答像你这样的读者的疑虑。我将列出这些关于 Ubuntu 20.04 的常见问题，并给出答案。我希望它能帮助你消除你的疑虑。如果你仍有问题，请随时在下面的评论栏提问。


### Ubuntu 20.04：已回复的问题


![](/data/attachment/album/202004/28/094530xdpqws5x5q0sxznw.jpg)


为了澄清一下，这里的一些答案也许受我个人意见的影响。如果你是一个有经验的 Ubuntu 用户，有些问题听起来可能有点愚蠢，但它对 Ubuntu 新用户不是这样。


#### Ubuntu 20.04 何时发布？


Ubuntu 20.04 LTS 于 2020 年 4 月 23 日发布。所有变种，如 Kubuntu、Lubuntu,、Xubuntu、Budgie、MATE 都将和 20.04 同一天发布。


#### Ubuntu 20.04 的系统要求是什么？


对于默认的 GNOME 版本，应至少具有 4GB 的内存、2GHz 双核处理器和至少 25GB 的磁盘空间。


其他 [Ubuntu 变种](https://itsfoss.com/which-ubuntu-install/)可能有不同的系统要求。


#### 我可以在 32 位系统上使用 Ubuntu 20.04 吗？


完全不行。你不能在 32 位系统上使用 Ubuntu 20.04。即使你使用的是 32 位 Ubuntu 18.04，也不能升级到 Ubuntu 20.04。32 位的系统 ISO 是以前用的。


![Error while upgrading 32-bit Ubuntu 18.04 to Ubuntu 20.04](/data/attachment/album/202004/28/094534tlwixkhmisc2b4yh.jpg)


#### 我可以在 Ubuntu 20.04 上使用 Wine 吗？


是的，你仍然可以在 Ubuntu 20.04 上使用 Wine，因为仍然用于 Wine 和 [Steam Play](https://itsfoss.com/steam-play/) 软件包所需的 32 位库。


#### 我需要购买 Ubuntu 20.04 或许可证？


不，Ubuntu 完全可以免费使用。你不必像在 Windows 中那样购买许可证密钥或激活 Ubuntu。


Ubuntu 的下载页会请求你捐赠一些资金，如果你想为开发这个强大的操作系统捐钱，由你自己决定。


#### GNOME 版本是什么？


Ubuntu 20.04 有 GNOME 3.36。


#### Ubuntu 20.04 的性能是否优于 Ubuntu 18.04？


是的，在几个方面。Ubuntu 20.04 系统速度更快，甚至超快。我在下面这个视频的 4:40 处展示了性能对比。






在 GNOME 3.36 中，滚动、窗口动画和其他 UI 元素更加流畅，提供了更流畅的体验。


#### Ubuntu 20.04 将支持多长时间？


它是一个长期支持（LTS）版本，与任何 LTS 版本一样，它将在五年内得到支持。这意味着 Ubuntu 20.04 将在 2025 年 4 月之前获得安全和维护更新。


#### 升级到 Ubuntu 20.04 时，是否会丢失数据？


你可以从 Ubuntu 19.10 或 Ubuntu 18.04 升级到 Ubuntu 20.04。你无需创建 live USB 并从中安装。你所需要的是一个良好的互联网连接，来下载约 1.5GB 的数据。


从现有系统升级不会破坏你的文件。你应该会留有所有文件，并且大多数现有软件应具有相同的版本或升级后的版本。


如果你使用了某些第三方工具或[其他 PPA](https://itsfoss.com/ppa-guide/)，升级过程将禁用它们。如果 Ubuntu 20.04 可以使用这些其他存储库，那么可以再次启用它们。


升级大约需要一个小时，重启后，你将登录到新版本。


虽然你的数据不会被触碰，并且不会丢失系统文件和配置，但最好在外部设备备份重要数据。


#### 何时可以升级到 Ubuntu 20.04？


![](/data/attachment/album/202004/28/094535iyyshjyzjpwiusop.jpg)


如果你正在使用 Ubuntu 19.10 并有正确的更新设置（如前面部分所述），那么应在发布后的几天内通知你升级到 Ubuntu 20.04。


对于 Ubuntu 18.04 用户，可能需要几周时间才能正式通知他们 Ubuntu 20.04 可用。可能，你可能会在第一个点版本 Ubuntu 20.04.1 后获得提示。


#### 如果我升级到 Ubuntu 20.04，我可以降级到 19.10 或 18.04 吗？


不行。虽然升级到新版本很容易，但无法选择降级。如果你想回到 Ubuntu 18.04，你需要重新[安装 Ubuntu 18.04](https://itsfoss.com/install-ubuntu/)。


#### 我使用的是 Ubuntu 18.04 LTS。我应该升级到 Ubuntu 20.04 LTS 吗？


这取决于你。如果你对 Ubuntu 20.04 中的新功能印象深刻，并希望上手尝试，那么你应该升级。


如果你想要一个更稳定的系统，我建议等待第一个点版本 Ubuntu 20.04.1，新版本会有 bug 修复。20.04.1 通常在 Ubuntu 20.04 发布后大约两个月到来。


无论是那种情况，我都建议你或早或晚升级到 Ubuntu 20.04。Ubuntu 20.04 具有更新的内核、性能改进，尤其是仓库中有更新版本的软件。


在外部磁盘上进行备份，并且有良好的互联网连接，升级不应成为问题。


#### 我应该重新安装 Ubuntu 20.04 还是从 18.04/19.10 升级到 Ubuntu？


如果你可以选择，请备份数据，并重新安装 Ubuntu 20.04。


从现有版本升级到 20.04 是一个方便的选择。然而，在我看来，它仍然保留有一些旧版本的痕迹/包。全新安装更加干净。


#### 关于 Ubuntu 20.04 的任何其他问题？


如果你对 Ubuntu 20.04 有任何疑问，请随时在下面发表评论。如果你认为应该将其他信息添加到列表中，请让我知道。




---


via: <https://itsfoss.com/ubuntu-20-04-faq/>


作者：[Abhishek Prakash](https://itsfoss.com/author/abhishek/) 选题：[lujun9972](https://github.com/lujun9972) 译者：[geekpi](https://github.com/geekpi) 校对：[wxy](https://github.com/wxy)


本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出


OK
[Ubuntu 20.04 release](https://itsfoss.com/ubuntu-20-04-release-features/) is just around the corner and you may have a few questions and doubts regarding upgrades, installation etc.

I hosted some Q&A sessions on various social media channels to answer doubts of readers like you.

I am going to list these common questions about Ubuntu 20.04 with their answers. I hope it helps you clear the doubts you have. And if you still have questions, feel free to ask in the comment section below.

## Ubuntu 20.04: Your Questions Answered

![Ubuntu 20 04 Faq](https://itsfoss.com/content/images/wordpress/2020/04/ubuntu_20_04_faq.jpg)

Just to clarify, some of the answers here maybe influenced by my personal opinion. If you are an experienced Ubuntu user, some of the questions may sound *silly* to you but it not to the new Ubuntu users.

### When will Ubuntu 20.04 be released?

Ubuntu 20.04 LTS is releasing on 23rd April 2020. All the participating flavors like Kubuntu, Lubuntu, Xubuntu, Budgie, MATE etc will have their 20.04 release available on the same day.

### What are the system requirements for Ubuntu 20.04?

For the default GNOME version, you should have a minimum 4 GB of RAM, 2 GHz dual core processor and at least 25 GB of disk space.

Other [Ubuntu flavors](https://itsfoss.com/which-ubuntu-install/) may have different system requirements.

### Can I use Ubuntu 20.04 on 32-bit systems?

No, not at all. You cannot use Ubuntu 20.04 on 32-bit systems. Even if you are using 32-bit Ubuntu 18.04, you cannot upgrade to Ubuntu 20.04. There is ISO for 32-bit systems for past several years.

![Error while upgrading 32-bit Ubuntu 18.04 to Ubuntu 20.04](https://itsfoss.com/content/images/wordpress/2020/04/ubuntu-32-bit.jpg)

### Can I use Wine on Ubuntu 20.04?

Yes, you can still use Wine on Ubuntu 20.04 as the 32-bit lib support is still there for packages needed by Wine and [Steam Play](https://itsfoss.com/steam-play/).

### Do I have to pay for Ubuntu 20.04 or purchase a license?

No, Ubuntu is completely free to use. You don’t have to buy a license key or activate Ubuntu like you do in Windows.

The download section of Ubuntu requests you to donate some money but it’s up to you if you want to give some money for developing this awesome operating system.

### What GNOME version does it have?

Ubuntu 20.04 has GNOME 3.36.

### Does Ubuntu 20.04 have better performance than Ubuntu 18.04?

Yes, in several aspects. Ubuntu 20.04 installs faster and it even boost faster. I have shown the performance comparison in the video below at 4:40 minutes.

The scroll, Windows animation and other UI elements are more fluid and give a smoother experience in GNOME 3.36.

### How long will Ubuntu 20.04 be supported?

It is a long-term support (LTS) release and like any LTS release, it will be supported for five years. Which means that Ubuntu 20.04 will get security and maintenance updates until April 2025.

### Will I lose data while upgrading to Ubuntu 20.04?

You can upgrade to Ubuntu 20.04 from Ubuntu 19.10 or Ubuntu 18.04. You don’t need to create a live USB and install from it. All you need is a good internet connection that can download around 1.5 GB of data.

Upgrading from an existing system doesn’t harm your files. You should have all your files as it is and most of your existing software should be either have the same version or upgraded versions.

If you have used some third-party tools or [additional PPA](https://itsfoss.com/ppa-guide/), the upgrade procedure will disable them. You can enable these additional repositories again if they are available for Ubuntu 20.04.

Upgrading takes like an hour and after a restart, you will be logged in to the newer version.

Though your data will not be touched and you won’t lose system files and configurations, it is always a good idea to make backup of important data externally.

### When will I get to upgrade to Ubuntu 20.04?

![Upgrade Ubuntu 20 04](https://itsfoss.com/content/images/wordpress/2020/03/upgrade-ubuntu-20-04.jpg)

If you are using Ubuntu 19.10 and have correct update settings in place (as mentioned in the earlier sections), you should be notified for upgrading to Ubuntu 20.04 within a few days of Ubuntu 18.04 release.

For Ubuntu 18.04 users, it may take some weeks before they are officially notified of the availability of Ubuntu 18.04. Probably, you may get the prompt after the first point release of Ubuntu 20.04.1.

### If I upgrade to Ubuntu 20.04, can I downgrade to 19.10 or 18.04?

No, you cannot. While upgrading to a newer version is easy, there is no option to downgrade. If you want to go back to Ubuntu 18.04, you’ll have [install Ubuntu 18.04](https://itsfoss.com/install-ubuntu/) again.

### I am using Ubuntu 18.04 LTS. Should I Upgrade to Ubuntu 20.04 LTS?

That depends upon you. If you are impressed by the new features in Ubuntu 20.04 and want to get your hands on it, you should upgrade.

If you want a more stable system, I advise waiting for the first point release Ubuntu 20.04.1 release that will have bug fixes in the new release. 20.04.1 should typically be coming approximately two months after the release of Ubuntu 20.04.

In either case, I recommend upgrading to Ubuntu 20.04 sooner or later. Ubuntu 20.04 has newer kernel, performance improvement and above all newer versions of software available in the repository.

Make a backup on external disk and with a good internet connectivity, the upgrade should not be an issue.

### Should I do a fresh install of Ubuntu 20.04 or upgrade to it from 18.04/19.10?

If you have a choice, make a backup of your data and do a fresh install of Ubuntu 20.04.

Upgrading to 20.04 from an existing version is a convenient option. However, in my opinion, it still keeps some traces/packages of the older version. A fresh install is always cleaner.

### Any other questions about Ubuntu 20.04?

If you have any other doubts regarding Ubuntu 20.04, please feel free to leave a comment below. If you think some other information should be added to the list, please let me know.