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Debian and Ubuntu packaging using git

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Arif Ali edited this page Feb 16, 2026 · 3 revisions

Debian packaging for sosreport is done using the gbp buildpackage tool that facilitate the management of the build, patches, pristine-tar, and upstream changes.

  1. Debian: Packaging a new release
  2. Debian: Backport process
  3. Debian: Sponsorship Differences

Packaging a new release

First clone the repo and move into the directory

git clone ssh://git@salsa.debian.org/sosreport-team/sosreport
cd sosreport

Now checkout the backports branch, and merge the latest code into it

git checkout debian/latest

Now we need to add the upstream repo

git remote add upstream https://github.com/sosreport/sos

We fetch the latest code from upstream

git fetch upstream

Now we want create the patch queue (we can skip this, if we have no patches)

gbp pq import  # only if you have patches against upstream

This in essence creates a new patch queue branch, so that anything we add can be rebased if needed. What this means that in the latter part of the steps, it can potentially update the patches so that they would apply cleanly to the source.

Grab the latest debian package we have

git checkout debian/latest

Now we import the latest from upstream, we need to replace the <upstream-tag> with the version you want to download from the upstream source.

gbp import-orig --uscan --upstream-vcs-tag=<upstream-tag>

This command will do multiple things

  1. Download the tarball from upstream
  2. Upload the contents and the changes to the upstream branch
  3. Create a new tag for this, and would be upstream/<upstream-tag>
  4. It will create a new commit into the pristine-tar branch that allows a person in the future to grab the same tarball that is being used here for potential uploads
  5. Will update the debian/latest branch from the upstream branch

Only if we have patches

gbp pq rebase
gbp pq export
gbp pq drop
git add debian/patches
git commit

If the commit requires to add a message, then generally use the following message

Drop patches already applied in new release.

We may want to add extra description of any other information that may be relevant

Then we use dch -i -r unstable, this will open a new interactive editor for the new changelog entry. A few things will need to be amended

  1. The version, this will typically be the upstream version then appeneded with -1, for example 4.10.2-1
  2. The series, in most cases this will be unstable
  3. The priority is always medium in 95% of the cases
  4. Then add the items in the changelog. Now this is what is changed in the debian package, not the source code. You will add a bullet point for upstream new version, but that should suffice.
  5. The email of the person making the upload. This needs to be the same email that was used for the GPG key signing and uploaded to mentors
  6. Finally, the date, this is preceded with 2 spaces, and the date itself. The format of this can easily be taken from the date -R command
  7. We save the file, and the changelog would be updated.

We now add the debian/changelog to git, and add a new commit, and then we can prep for upload to mentors.

git add debian/changlog
git commit -m "Add changelog for 4.10.2-1"
git push origin

Now we build the package and upload to mentors or debian directly

git-buildpackage -S -d
dput ftp-master ../sos_4.10.2-1_source.changes

Debian Backport Process

First clone the repo and move into the directory

git clone ssh://git@salsa.debian.org/sosreport-team/sosreport
cd sosreport

Now checkout the backports branch, and merge the latest code into it. The following command will specifically look at trixie-backport, but a similar concept can be applied for any other backports

git checkout debian/trixie-backport
git merge debian/latest

Resolve the merge conflicts, This usually means that the version from the new version is on top of the previous backport, so in example below is the top of debian/changelog from debian/trixie-backports branch when the merge was fixed

sos (4.10.2-1) unstable; urgency=medium

  * New upstream release 4.10.2

  * For more details, full release note is available here:
    - https://github.com/sosreport/sos/releases/tag/4.10.2

  * d/control: Change maintainer to DPT
  * d/gbp.conf: Conform to DPT policy settings

 -- Arif Ali <arif-ali@ubuntu.com>  Mon, 15 Dec 2025 16:52:51 +0000

sos (4.10.1-1~bpo13+1) trixie-backports; urgency=medium

  * Rebuild for trixie-backports.

 -- Arif Ali <arif-ali@ubuntu.com>  Thu, 27 Nov 2025 09:54:20 +0000

Then, typically, you will be guided to the shell, and the current state of the git merge is still outstanding, so typically we can run the commands below to resolve this

git add debian/changelog
git commit --no-edit

Now, we need to add the new changelog entry, the simplest way to do this is by running the command below

dch --bpo

This should open the editor to make any changes. In most cases no changes would be needed. Just remove the extra bullet point, save and commit the change; something on the lines of

git commit -m "d/changelog: backport from 4.10.2-1"

Now we need to tag it

git tag debian/4.10.2-1_bpo13+1

Push the branch and tag to the repo

git push origin debian/trixie-backport
git push origin debian/4.10.2-1_bpo13+1

Finally, we can build the source, and push to debian. Noting, that we have added an extra -v flag to designate the previous version that was uploaded to backports.

git-buildpacage -S -d -v4.10.1-1~bpo13+1
dput ftp-master ../sos_4.10.2-1~bpo13+1_source.changes

sponsorship differences

If you are going to request sponsorship, then you will need to upload to mentors instead, and you would replace ftp-master with mentors. You will need to create an account on mentors.debian.net if you have not got one already, and then add your GPG key that would be used for signing your package.

Once the upload to mentors is done, you should be able to submit a request for sponsorship (RFS). A template for this will be available at https://mentors.debian.net/sponsors/rfs-howto/sos/ (This link will only be available when the upload is done). We then submit this to the following mailing lists

Over time you may have built some relationship with a sponsor, and you may be able to contact this person without submitting an RFS, and point this person to your package that has been uploaded to mentors.

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