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160 lines
6.1 KiB
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[#]: subject: "How to Switch from Debian Stable to Testing"
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[#]: via: "https://itsfoss.com/switch-debian-stable-testing/"
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[#]: author: "Sagar Sharma https://itsfoss.com/author/sagar/"
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[#]: collector: "lkxed"
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[#]: translator: " "
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[#]: reviewer: " "
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[#]: publisher: " "
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[#]: url: " "
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How to Switch from Debian Stable to Testing
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======
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If you are looking for the most stable Linux distribution, sure, Debian is the right choice.
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Especially if you are planning to use it on servers.
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But, on the desktop side, things are a bit different. I mean, you are given packages that are at least a year old and support for new-age hardware is even worse.
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So what do you do in those cases, Well, you can use Debian testing!
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But before jumping to the explanation part, let’s briefly understand Debian testing.
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### What is Debian Testing?
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Debian offers you 3 variants of Debian:
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- Debian stable (what you get by default from their homepage).
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- Debian testing (has **newer packages** and breaks less often than Debian unstable).
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- Debian unstable (has the most recent packages and is **considered the most fragile of all**).
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So Debian testing can be considered a sweet spot between stability and fresh packages.
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I’ve been playing around with Debian testing for some time and haven’t faced any issues.
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In fact, many Debian users prefer the testing variant over the stable version. Despite the name testing, it is pretty usable.
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But still, **I would recommend you to experiment with this on VM,** try using it with your primary tools and if things go well, you can apply those changes in the main system.
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### Switch from Debian stable to Debian testing
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**_Warning: You can not downgrade from Debian testing to Debian stable, as installer scripts and installation tools are only designed to replace the older version with the new one._**
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Also, I would recommend [using timeshift to create a backup][1] before applying the shown steps on your main machine.
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First, update the existing packages using the given command:
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```
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sudo apt update && sudo apt upgrade -y
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```
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Next, make a copy of original `sources.list` file:
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```
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sudo cp /etc/apt/sources.list sources.list.backup
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```
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Now, let’s start with the first step.
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#### Step 1: Edit sources.list file
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There are two ways of editing `sources.list` file. Either you can manually alter the current release name with `testing` or you can [use the sed command][2] to get your job done.
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And I’m going with a 2nd one to make the whole process easier. You just have to use the given command, and it will replace `bullseye` with `testing` for you:
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```
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sudo sed -i 's/bullseye/testing/g' /etc/apt/sources.list
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```
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Now, open your terminal and use the given command to open `sources.list` files:
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```
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sudo nano /etc/apt/sources.list
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```
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And comment out the lines having `security.debian.org` and anything that ends with `-updates` as shown below:
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![comment out security sources][3]
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If you are using nano as I do, you can press `Alt + /` to jump to the end of the line. And then you have to add the following line:
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```
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deb http://security.debian.org testing-security main
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```
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![2. add line to keep track of testing in debian][4]
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And [save the changes and exit from the nano][5] text editor.
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#### Step 2: Update the Repository and install new packages
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Now, update the repository index, and it will show you a massive update pending:
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```
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sudo apt update
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```
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![update repository in linux][6]
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Now, you can use the given command, and it will get you the most recent packages:
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```
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sudo apt upgrade
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```
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Sit back and relax as it is going to take a while.
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Once done, it will present you with the list of changes made as you switched from Debian stable to testing:
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![packages that are updated when switched to debian testing][7]
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You can read if you want or you can **just press q** to proceed further.
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Now, it will show you the message that some of the libraries installed on your system needs to restart. Press the **TAB** key, and it will select the **OK** option, and then press **Enter:**
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![libraries needs to be restarted after update][8]
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Next, it will ask you whether you want to restart services during the package upgrade. Here you have a choice. As I’m doing this for desktop usage only, I will go with `YES`:
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![restart services during package upgrades without asking?][9]
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Once done, you can reboot your system and then use the following command to have full effect from the changes you’ve just made:
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```
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sudo apt full-upgrade
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```
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Now, reboot your system, and you’ll have the most recent packages. Such as **I was running GNOME 43** when I got into the system:
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![running gnome 43 in debian][10]
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### Wrapping Up
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In this tutorial, I explained how you could switch from Debian stable to Debian testing. I hope this will be helpful to you.
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And if you face any issues or have any queries, let me know in the comments.
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--------------------------------------------------------------------------------
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via: https://itsfoss.com/switch-debian-stable-testing/
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作者：[Sagar Sharma][a]
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选题：[lkxed][b]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://itsfoss.com/author/sagar/
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[b]: https://github.com/lkxed
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[1]: https://itsfoss.com/backup-restore-linux-timeshift/
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[2]: https://linuxhandbook.com/sed-command-basics/
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[3]: https://itsfoss.com/wp-content/uploads/2022/11/comment-out-security-sources.gif
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[4]: https://itsfoss.com/wp-content/uploads/2022/11/2.-add-line-to-keep-track-of-testing-in-debian.png
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[5]: https://linuxhandbook.com/nano-save-exit/
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[6]: https://itsfoss.com/wp-content/uploads/2022/11/update-repository-in-linux.png
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[7]: https://itsfoss.com/wp-content/uploads/2022/11/packages-that-are-updated-when-switched-to-debian-testing.png
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[8]: https://itsfoss.com/wp-content/uploads/2022/11/libraries-needs-to-be-restarted-after-update.png
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[9]: https://itsfoss.com/wp-content/uploads/2022/11/restart-services-during-package-upgrades-without-asking.png
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[10]: https://itsfoss.com/wp-content/uploads/2022/11/running-gnome-43-in-debian.png
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