livecd-rootfs uploaded to the queue. I've not uploaded ubuntustudio- default-settings to drop the recommends since it's not required for the fix. An ubuntustudio developer can do it though if they want.
-- You received this bug notification because you are a member of Ubuntu Studio Bugs, which is subscribed to ubuntustudio-meta in Ubuntu. Matching subscriptions: UbuntuStudioPackages https://bugs.launchpad.net/bugs/1884915 Title: ubuntustudio-default-settings recommends linux-lowlatency thus breaking ubuntustudio focal image building Status in live-build package in Ubuntu: Invalid Status in livecd-rootfs package in Ubuntu: Confirmed Status in ubuntustudio-default-settings package in Ubuntu: Fix Released Status in ubuntustudio-meta package in Ubuntu: Invalid Status in live-build source package in Focal: Invalid Status in livecd-rootfs source package in Focal: Confirmed Status in ubuntustudio-default-settings source package in Focal: Confirmed Status in ubuntustudio-meta source package in Focal: Invalid Status in live-build source package in Groovy: Invalid Status in livecd-rootfs source package in Groovy: Won't Fix Status in ubuntustudio-default-settings source package in Groovy: Fix Released Status in ubuntustudio-meta source package in Groovy: Invalid Bug description: [ Description ] ubuntustudio-default-settings recommends linux-lowlatency thus breaking ubuntustudio focal image building $ reverse-depends linux-lowlatency Reverse-Recommends * ubuntustudio-lowlatency-settings Reverse-Depends * linux-lowlatency-hwe-18.04 [amd64] * linux-lowlatency-hwe-18.04-edge [amd64] Packages without architectures listed are reverse-dependencies in: amd64, arm64, armhf, i386, ppc64el, s390x Seeded packages in the Ubuntu archive must not depend on the linux kernel. Installation, and defaultness of a kernel flavour must be handled externally using livecd-rootfs kernel flavour picking, or some other dynamic configuration. The above resulted in transitevely linux-lowlatency packages getting pulled into the ubuntustudio task, without a blacklist. Which means that ABI encoded packages gain Task: ubuntustudio-desktop, and instead of only installing/tracking the latest kernel, the ancient 5.4.0-16-lowlatency abi is also installed, and then production of daily focal isos fails, as there are two lowlatency kernels on the media. [ Fix ] The above description indicates what broke. The recommends means that the Task field contains a specific kernel ABI. We'll fix this by enumerating the packages that we need to ensure aren't included, and make sure they are effectively considered as not part of the task. [ QA ] Build an ubuntustudio/focal ISO with the -proposed livecd-rootfs and make sure that it builds successfully and boots. [ Regression potential ] This is about excluding kernel-related packages from the task consideration. If it is wrong then they could be excluded from the image completely. That should be obvious if the thing doesn't boot, and we'll have to iterate again. [ Original description ] $ reverse-depends linux-lowlatency Reverse-Recommends * ubuntustudio-lowlatency-settings Reverse-Depends * linux-lowlatency-hwe-18.04 [amd64] * linux-lowlatency-hwe-18.04-edge [amd64] Packages without architectures listed are reverse-dependencies in: amd64, arm64, armhf, i386, ppc64el, s390x $ apt-cache show -a linux*lowlatency | grep -e Package -e Task ... Package: linux-headers-5.4.0-26-lowlatency Task: ubuntustudio-desktop ... If the dependency is desired, that is ok, as long as the abi encoded packages are blacklisted in the seed similar to the !linux-image-* stanza. see https://launchpad.net/~ubuntu- cdimage/+livefs/ubuntu/focal/ubuntustudio/ To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/live-build/+bug/1884915/+subscriptions -- Mailing list: https://launchpad.net/~ubuntustudio-bugs Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntustudio-bugs More help : https://help.launchpad.net/ListHelp

