7. Managing your trixie system before the upgrade

This appendix contains information on how to make sure you can install or upgrade trixie packages before you upgrade to forky.

7.1. Upgrading your trixie system

Basically this is no different from any other upgrade of trixie you’ve been doing. The only difference is that you first need to make sure your package list still contains references to trixie as explained in Checking your APT source-list files.

If you upgrade your system using a Debian mirror, it will automatically be upgraded to the latest trixie point release.

7.2. Checking your APT configuration

If any of the lines in your APT sources files (see sources.list(5)) contain references to “stable”, this is effectively pointing to forky already. This might not be what you want if you are not yet ready for the upgrade. If you have already run apt update, you can still get back without problems by following the procedure below.

If you have also already installed packages from forky, there probably is not much point in installing packages from trixie anymore. In that case you will have to decide for yourself whether you want to continue or not. It is possible to downgrade packages, but that is not covered here.

As root, open the relevant APT sources file(s) (such as /etc/apt/sources.list or any file under /etc/apt/sources.list.d/) with your favorite editor, and check all lines beginning with

deb http:

deb https:

deb tor+http:

deb tor+https:

URIs: http:

URIs: https:

URIs: tor+http:

URIs: tor+https:

for a reference to “stable”. If you find any, change “stable” to “trixie”.

If you have any lines starting with deb file: or URIs: file:, you will have to check for yourself if the location they refer to contains a trixie or forky archive.

Important

Do not change any lines that begin with deb cdrom: or URIs: cdrom:. Doing so would invalidate the line and you would have to run apt-cdrom again. Do not be alarmed if a cdrom: source line refers to “unstable”. Although confusing, this is normal.

If you’ve made any changes, save the file and execute

# apt update

to refresh the package list.

7.3. Performing the upgrade to latest trixie release

To upgrade all packages to the state of the latest point release for trixie, do

# apt full-upgrade

7.4. Removing obsolete configuration files

Before upgrading your system to forky, it is recommended to remove old configuration files (such as *.dpkg-{new,old} files under /etc) from the system.