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+[#]: subject: "How to Switch from Debian Stable to Testing"
+[#]: via: "https://itsfoss.com/switch-debian-stable-testing/"
+[#]: author: "Sagar Sharma https://itsfoss.com/author/sagar/"
+[#]: collector: "lkxed"
+[#]: translator: " "
+[#]: reviewer: " "
+[#]: publisher: " "
+[#]: url: " "
+
+How to Switch from Debian Stable to Testing
+======
+
+If you are looking for the most stable Linux distribution, sure, Debian is the right choice.
+
+Especially if you are planning to use it on servers.
+
+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.
+
+So what do you do in those cases, Well, you can use Debian testing!
+
+But before jumping to the explanation part, let’s briefly understand Debian testing.
+
+### What is Debian Testing?
+
+Debian offers you 3 variants of Debian:
+
+- Debian stable (what you get by default from their homepage).
+- Debian testing (has **newer packages** and breaks less often than Debian unstable).
+- Debian unstable (has the most recent packages and is **considered the most fragile of all**).
+
+So Debian testing can be considered a sweet spot between stability and fresh packages.
+
+I’ve been playing around with Debian testing for some time and haven’t faced any issues.
+
+In fact, many Debian users prefer the testing variant over the stable version. Despite the name testing, it is pretty usable.
+
+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.
+
+### Switch from Debian stable to Debian testing
+
+**_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._**
+
+Also, I would recommend [using timeshift to create a backup][1] before applying the shown steps on your main machine.
+
+First, update the existing packages using the given command:
+
+```
+sudo apt update && sudo apt upgrade -y
+```
+
+Next, make a copy of original `sources.list` file:
+
+```
+sudo cp /etc/apt/sources.list sources.list.backup
+```
+
+Now, let’s start with the first step.
+
+#### Step 1: Edit sources.list file
+
+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.
+
+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:
+
+```
+sudo sed -i 's/bullseye/testing/g' /etc/apt/sources.list
+```
+
+Now, open your terminal and use the given command to open `sources.list` files:
+
+```
+sudo nano /etc/apt/sources.list
+```
+
+And comment out the lines having `security.debian.org` and anything that ends with `-updates` as shown below:
+
+![comment out security sources][3]
+
+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:
+
+```
+deb http://security.debian.org testing-security main
+```
+
+![2. add line to keep track of testing in debian][4]
+
+And [save the changes and exit from the nano][5] text editor.
+
+#### Step 2: Update the Repository and install new packages
+
+Now, update the repository index, and it will show you a massive update pending:
+
+```
+sudo apt update
+```
+
+![update repository in linux][6]
+
+Now, you can use the given command, and it will get you the most recent packages:
+
+```
+sudo apt upgrade
+```
+
+Sit back and relax as it is going to take a while.
+
+Once done, it will present you with the list of changes made as you switched from Debian stable to testing:
+
+![packages that are updated when switched to debian testing][7]
+
+You can read if you want or you can **just press q** to proceed further.
+
+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:**
+
+![libraries needs to be restarted after update][8]
+
+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`:
+
+![restart services during package upgrades without asking?][9]
+
+Once done, you can reboot your system and then use the following command to have full effect from the changes you’ve just made:
+
+```
+sudo apt full-upgrade
+```
+
+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:
+
+![running gnome 43 in debian][10]
+
+### Wrapping Up
+
+In this tutorial, I explained how you could switch from Debian stable to Debian testing. I hope this will be helpful to you.
+
+And if you face any issues or have any queries, let me know in the comments.
+
+--------------------------------------------------------------------------------
+
+via: https://itsfoss.com/switch-debian-stable-testing/
+
+作者：[Sagar Sharma][a]
+选题：[lkxed][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://itsfoss.com/author/sagar/
+[b]: https://github.com/lkxed
+[1]: https://itsfoss.com/backup-restore-linux-timeshift/
+[2]: https://linuxhandbook.com/sed-command-basics/
+[3]: https://itsfoss.com/wp-content/uploads/2022/11/comment-out-security-sources.gif
+[4]: https://itsfoss.com/wp-content/uploads/2022/11/2.-add-line-to-keep-track-of-testing-in-debian.png
+[5]: https://linuxhandbook.com/nano-save-exit/
+[6]: https://itsfoss.com/wp-content/uploads/2022/11/update-repository-in-linux.png
+[7]: https://itsfoss.com/wp-content/uploads/2022/11/packages-that-are-updated-when-switched-to-debian-testing.png
+[8]: https://itsfoss.com/wp-content/uploads/2022/11/libraries-needs-to-be-restarted-after-update.png
+[9]: https://itsfoss.com/wp-content/uploads/2022/11/restart-services-during-package-upgrades-without-asking.png
+[10]: https://itsfoss.com/wp-content/uploads/2022/11/running-gnome-43-in-debian.png