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115 lines
3.8 KiB
Markdown
115 lines
3.8 KiB
Markdown
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---
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layout: doc
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title: Upgrading the Debian Templates
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permalink: /doc/template/debian/upgrade/
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redirect_from:
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---
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Upgrading Debian Templates
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===============================
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In general, upgrading a Debian template follows the same process as [upgrading a native Debian system][upgrade].
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You should consult the release notes for the target version. For Debian-10 see [here][release].
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Please note that if you installed packages from one of the testing repositories you must make sure that the repository is enabled in `/etc/apt/sources.list.d/qubes-r4.list` before attempting the upgrade.
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Otherwise, your upgrade will [break](https://github.com/QubesOS/qubes-issues/issues/2418).
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By default, Qubes uses codenames in the apt sources files, although the templates are referred to by release number.
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Check the code names for the templates, and ensure you are aware of any changes you have made in the repository definitons.
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In this example we are upgrading from debian-9 (stretch) to debian-10 (buster)
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Summary: Upgrading a Debian Template
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--------------------------------------------------
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1. Clone the existing template.
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2. Open a terminal in the new template.
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3. Edit the sources.list files to refer to the new version.
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4. Perform the upgrade:
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```
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sudo apt update
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sudo apt upgrade
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sudo apt dist-upgrade
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```
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5. Compact the template
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6. Shutdown and start using the new template.
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Detailed instructions:
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--------------------------------------------------------------
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These instructions show you how to upgrade the standard Debian 9 TemplateVM to Debian 10.
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1. Ensure the existing template is not running.
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[user@dom0 ~]$ qvm-shutdown debian-9
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2. Clone the existing template and start a terminal in the new template.
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[user@dom0 ~]$ qvm-clone debian-9 debian-10
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[user@dom0 ~]$ qvm-run -a debian-10 gnome-terminal
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3. Update your apt repositories to use buster instead of stretch
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(This can be done manually with a text editor, but sed can be used to automatically update the files.)
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```
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$ sudo sed -i 's/stretch/buster/g' /etc/apt/sources.list
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$ sudo sed -i 's/stretch/buster/g' /etc/apt/sources.list.d/qubes-r4.list
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```
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4. Update the package lists and upgrade to Debian 10.
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During the process, it may prompt you to overwrite the file `qubes-r4.list`.
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You should overwrite this file.
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```
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$ sudo apt update
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$ sudo apt upgrade
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$ sudo apt dist-upgrade
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```
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5. (optional) Remove unnecessary packages that were previously installed
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`sudo apt-get autoremove`
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6. Compact the template.
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7. Shutdown the new TemplateVM via dom0 command line or the Qube Manager.
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8. (Recommended) [Switch everything that was set to the old template to the new template.][switch]
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9. (Optional) Change the default template to use the new template.
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10. (Optional) Remove the old template using dom0 command line or the Qube Manager.
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Compacting the Upgraded Template
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--------------------------------
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1. Open a terminal in the template and run:
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```
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$ sudo fstrim -av
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$ sudo shutdown -h
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```
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2. Restart the template and run step 1 again.
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This ensures that changes in the upgrade process are not stored in a difference file.
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Additional Information
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----------------------
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User-initiated updates/upgrades may not run when a templateVM first starts.
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This is due to a Debian config setting that attempts to update the system automatically.
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You should disable this by opening a terminal in the template and running:
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```
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$ sudo systemctl disable apt-daily.{service,timer}`.
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```
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Relevant Discussions
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--------------------
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* [User apt commands blocked on startup][2621]
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[upgrade]: https://wiki.debian.org/DebianUpgrade
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[2621]: https://github.com/QubesOS/qubes-issues/issues/2621
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[switch]: /doc/templates/#how-to-switch-templates)
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[release]: https://www.debian.org/releases/buster/amd64/release-notes/ch-upgrading.en.html
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[switch]: /doc/templates/#how-to-switch-templates
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