ubuntu-cpc parallel builds produce unused files

I have attached an MP. In testing with the ubuntu-cpc project on eoan, when building the amd64 qcow2 image target we eliminate 1.38GiB in unnecessary transfer and storage. This saves a lot of time, storage, and transit for each parallel build on each architecture (so it adds up fast).

This bug was fixed in the package livecd-rootfs - 2.603

---------------
livecd-rootfs (2.603) eoan; urgency=medium

  [ Tobias Koch ]
  * Add retry logic to snap-tool to make downloads more resilient

  [ Robert C Jennings ]
  * ubuntu-cpc: Only produce explicitly specified artifacts (LP: #1837254)

 -- Tobias Koch <email address hidden> Mon, 15 Jul 2019 17:59:06 +0200

I've completed image build testing across xenial, bionic, and disco for the SRU MPs and they're ready for review and upload.

I have reviewed and merged all the D/B/X branches for livecd-rootfs. Would you want me to sponsor those?

Yes, please. I would like them sponsored. Thank you!

Hello Robert, or anyone else affected,

Accepted livecd-rootfs into disco-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/livecd-rootfs/2.578.8 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 and change the tag from verification-needed-disco to verification-done-disco. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-disco. 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.

Hello Robert, or anyone else affected,

Accepted livecd-rootfs into bionic-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/livecd-rootfs/2.525.30 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 and change the tag from verification-needed-bionic to verification-done-bionic. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-bionic. 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.

Hello Robert, or anyone else affected,

Accepted livecd-rootfs into xenial-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/livecd-rootfs/2.408.51 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 and change the tag from verification-needed-xenial to verification-done-xenial. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-xenial. 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.

All autopkgtests for the newly accepted livecd-rootfs (2.525.30) for bionic have finished running.
The following regressions have been reported in tests triggered by the package:

ubuntu-image/1.7+18.04ubuntu1 (arm64)

Please visit the excuses page listed below and investigate the failures, proceeding afterwards as per the StableReleaseUpdates policy regarding autopkgtest regressions [1].

https://people.canonical.com/~ubuntu-archive/proposed-migration/bionic/update_excuses.html#livecd-rootfs

[1] https://wiki.ubuntu.com/StableReleaseUpdates#Autopkgtest_Regressions

Thank you!

The autopkgtest failure was a transient network failure during the build. After log analysis the test was re-run and is passing. I will perform verification tests and update the bug with results in the next few days.

Hello Robert, or anyone else affected,

Accepted livecd-rootfs into xenial-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/livecd-rootfs/2.408.52 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 and change the tag from verification-needed-xenial to verification-done-xenial. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-xenial. 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.

All autopkgtests for the newly accepted livecd-rootfs (2.408.52) for xenial have finished running.
The following regressions have been reported in tests triggered by the package:

ubuntu-image/1.7+16.04ubuntu1 (amd64)

Please visit the excuses page listed below and investigate the failures, proceeding afterwards as per the StableReleaseUpdates policy regarding autopkgtest regressions [1].

https://people.canonical.com/~ubuntu-archive/proposed-migration/xenial/update_excuses.html#livecd-rootfs

[1] https://wiki.ubuntu.com/StableReleaseUpdates#Autopkgtest_Regressions

Thank you!

Hello Robert, or anyone else affected,

Accepted livecd-rootfs into xenial-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/livecd-rootfs/2.408.53 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 and change the tag from verification-needed-xenial to verification-done-xenial. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-xenial. 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.

All autopkgtests for the newly accepted livecd-rootfs (2.408.53) for xenial have finished running.
The following regressions have been reported in tests triggered by the package:

ubuntu-image/1.7+16.04ubuntu1 (i386)

Please visit the excuses page listed below and investigate the failures, proceeding afterwards as per the StableReleaseUpdates policy regarding autopkgtest regressions [1].

https://people.canonical.com/~ubuntu-archive/proposed-migration/xenial/update_excuses.html#livecd-rootfs

[1] https://wiki.ubuntu.com/StableReleaseUpdates#Autopkgtest_Regressions

Thank you!

Hello Robert, or anyone else affected,

Accepted livecd-rootfs into xenial-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/livecd-rootfs/2.408.54 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 and change the tag from verification-needed-xenial to verification-done-xenial. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-xenial. 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.

Test builds completed for ubuntu-cpc for xenial, bionic, and disco and I'm marking this verification done and ready for promotion.

The verification of the Stable Release Update for livecd-rootfs 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.

This bug was fixed in the package livecd-rootfs - 2.408.54

---------------
livecd-rootfs (2.408.54) xenial; urgency=medium

  * Revert exclusion of makedev from buildd chroots, as it turned out not to
    be the problem. Instead, fix up /dev/ptmx to be a character device node
    rather than a symlink to /dev/pts/ptmx, in line with the discussion in
    https://bugs.debian.org/817236; I think this is safer than
    cherry-picking the fix to debootstrap at this point in a stable release
    cycle (LP: #1844504).

livecd-rootfs (2.408.53) xenial; urgency=medium

  * Fix exclusion of makedev from buildd chroots; debootstrap doesn't
    respect --exclude for "Priority: required" packages, so we have to purge
    makedev later (LP: #1844504).

livecd-rootfs (2.408.52) xenial; urgency=medium

  * Exclude makedev from buildd chroots, since it was historically excluded
    and apparently breaks some builds (e.g. mir; LP: #1844504).

livecd-rootfs (2.408.51) xenial; urgency=medium

  * ubuntu-cpc: Only produce explicitly specified artifacts (LP: #1837254)

 -- Colin Watson <email address hidden> Thu, 26 Sep 2019 10:53:23 +0100

This bug was fixed in the package livecd-rootfs - 2.578.8

---------------
livecd-rootfs (2.578.8) disco; urgency=medium

  * ubuntu-cpc: Only produce explicitly specified artifacts (LP: #1837254)

 -- Robert C Jennings <email address hidden> Mon, 26 Aug 2019 16:25:24 -0500

This bug was fixed in the package livecd-rootfs - 2.525.30

---------------
livecd-rootfs (2.525.30) bionic; urgency=medium

  [ Robert C Jennings ]
  * ubuntu-cpc: Only produce explicitly specified artifacts (LP: #1837254)

  [ Ethan Hsieh ]
  * Add support for the Nitrogen6x board (LP: #1838064).

 -- Łukasz 'sil2100' Zemczak <email address hidden> Tue, 10 Sep 2019 16:56:26 +0200