Yeah, ok. Ubuntu Studio lead here. This bug is invalid for two reasons:
1) Upgrades to 24.04 aren't even supported yet and won't be supported until August 2024 (upon release of 24.04.1) 2) The exact bug was caught before the release of Lunar Lobster (23.04) and the fix is included in that release, but no bug was filed because I was the one who found it and didn't need to file it. (see https://git.launchpad.net/ubuntustudio-default-settings/commit/?id=7de146f7c74f8c5d73e401513500c700f38f5acf if you don't believe me) Long-story short, NOBODY should be testing upgrades from 22.04 to 24.04 right now, and NOBODY should be expecting support for this. That said, there *will* be a Conflicts: line in place before 24.04's release, but this is not something anybody should be expecting now. Furthermore, notice how the askubuntu question was closed? That's because it was offtopic/for an unsupported release. I'm treating it the same here. ** Changed in: ubuntustudio-default-settings (Ubuntu) Status: Confirmed => Invalid ** Changed in: fontconfig (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to fontconfig in Ubuntu. https://bugs.launchpad.net/bugs/2051313 Title: font-config confilcts ubuntustudio-default-settings upgrading from 22.04 to 24.04 Status in fontconfig package in Ubuntu: Invalid Status in ubuntustudio-default-settings package in Ubuntu: Invalid Bug description: This bug was migrated from https://askubuntu.com/q/1501240/1004020 . A nearly identical bug is https://bugs.launchpad.net/ubuntu/+source/fontconfig/+bug/2005124 . It fixed things for `kubuntu-settings-desktop` but not `ubuntustudio- default-settings`. Please add an analogous fix. A similar but potentially unrelated bug is https://bugs.launchpad.net/ubuntu/+source/ubuntustudio-default- settings/+bug/2037471 . 1) The release of Ubuntu you are using, via 'lsb_release -rd' or System -> About Ubuntu Not my computer. 2) The version of the package you are using, via 'apt-cache policy pkgname' or by checking in Software Center Not my computer. 3) What you expected to happen The AskUbuntu user's upgrade from 22.04 to 24.04 to complete successfully. 4) What happened instead The upgrade failed and they posted to AskUbuntu. # Copy of their question body After an upgrade to ``` Distributor ID: Ubuntu Description:Ubuntu Noble Numbat (development branch) Release: 24.04 Codename:noble ``` apt won't update bcs of unmet dependencies. ``` The following packages have unmet dependencies: libfontconfig1 : Depends: fontconfig-config (>= 2.14.2-6ubuntu1) libfontconfig1:i386 : Depends: fontconfig-config:i386 (>= 2.14.2-6ubuntu1) E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution). ``` I've tried: ``` apt --fix-broken install ``` ``` dpkg: error processing archive /var/cache/apt/archives/fontconfig-config_2.14.2-6ubuntu1_amd64.deb (--unpack): trying to overwrite '/etc/fonts/conf.d/10-sub-pixel-rgb.conf', which is also in package ubuntustudio-default-settings 22.04.26.3 dpkg-query: package 'fontconfig-config' is not installed Use dpkg --contents (= dpkg-deb --contents) to list archive files contents. dpkg-query: package 'fontconfig-config' is not installed Use dpkg --contents (= dpkg-deb --contents) to list archive files contents. dpkg-query: package 'fontconfig-config' is not installed Use dpkg --contents (= dpkg-deb --contents) to list archive files contents. Errors were encountered while processing: /var/cache/apt/archives/fontconfig-config_2.14.2-6ubuntu1_amd64.deb E: Sub-process /usr/bin/dpkg returned an error code (1) ``` # Copy of workaround in my answer body The problem is that 24.04 moved `/etc/fonts/conf.d/10-sub-pixel- rgb.conf` out of `ubuntustudio-default-settings` ([before](https://packages.ubuntu.com/jammy/all/ubuntustudio-default- settings/filelist), [after](https://packages.ubuntu.com/noble/all/ubuntustudio-default- settings/filelist)) and into [`fontconfig- config`](https://packages.ubuntu.com/noble/all/fontconfig- config/filelist). The `ubuntustudio-default-settings` package needs to be updated first but the maintainers forgot to add an automatic `Conflicts:` line. You can retry installing the package in the correct order by running `sudo apt install --upgrade ubuntustudio-default-settings`. If that does not work, you need to forcibly reinstall things in the correct order: ```bash sudo -i apt update apt download ubuntustudio-default-settings apt download fontconfig-config # Temporarily force-uninstall only ubuntustudio-default-settings # so that we DON'T uninstall ubuntustudio-desktop dpkg --force-all -r ubuntustudio-default-settings dpkg --force-all -i ./fontconfig-config_* dpkg --force-all -i ./ubuntustudio-default-settings_* dpkg --configure -a apt --fix-broken install apt upgrade apt dist-upgrade ``` # Analysis Please apply an analogous fix. Where I mentioned `Conflicts:` on AskUbuntu, a `Pre-Depends:` may be necessary instead as I read somewhere on Launchpad. 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