Update choose-mirror to default to groovy

[Łukasz Zemczak]

[Impact]

For every release, we always bumped choose-mirror's defaults to the current series. Last time this was done for focal. So right now the groovy installer uses 'focal' as the defaults.
We no longer ship choose-mirror in the archive but instead vendorize it inside ubiquity.
It's hard for me to assess what's the impact of this, but as it was done with every release (and was missed this time by mistake), we should make sure it's done properly.

[Test Case]

Build the ubiquity package and make sure that the right choose-mirror version is used during build.

There is no more specific test case we could run. A test installation using the new ubiquity could be performed to make sure everything is done properly (and us using the right mirrors etc.).

[What could go wrong]

There is not much regression potential with this change, as this upload only modifies one vendored package - choose-mirror. The change only affects 2 files (header used during build and some debconf templates) - and those can't really affect many components. Running a successful install should provide enough regression coverage.

[Original Description]

We missed this step in the release process, let's backport a fix for it now.

[Brian Murray (brian-murray)]

Hello Łukasz, or anyone else affected,

Accepted ubiquity into groovy-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/ubiquity/20.10.13.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed-groovy to verification-done-groovy. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-groovy. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

[Łukasz Zemczak (sil2100)]

Looking at https://launchpad.net/ubuntu/+source/ubiquity/20.10.13.1/+build/20310715 it seems to me that the right choose-mirror version is being used during build (2.78ubuntu8, so the one with the new defaults). Not much verification we can do at this stage - marking as verified.

[Brian Murray (brian-murray)]

Incidentally, has this also been done for Hirsute?

[Launchpad Janitor (janitor)]

This bug was fixed in the package ubiquity - 20.10.13.1

---------------
ubiquity (20.10.13.1) groovy; urgency=medium

  * Update d-i/sources/choose-mirror, switching from focal to groovy as the
    default (LP: #1904447).

 -- Łukasz 'sil2100' Zemczak <email address hidden> Mon, 16 Nov 2020 18:40:49 +0100

[Brian Murray (brian-murray)]

The verification of the Stable Release Update for ubiquity has completed successfully and the package is now being released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.