Public bug reported: When updating Ubuntu 19.04 (disco) to 19.10 (eoan), ubuntu-release- upgrader throws the following error about missing package information and a missing ubuntu-minimal-package (in German):
``` Ungültige Paketinformationen Das benötigte Paket »ubuntu-minimal« wurde nach der Aktualisierung Ihrer Paketinformationen nicht gefunden. Dies kann daran liegen, dass Sie keine offiziellen Spiegel-Server in Ihren Paketquellen eingetragen haben oder ein Spiegel-Server überlastet ist. Ihre derzeit eingerichteten Paketquellen finden Sie in /etc/apt/sources.list. Im Falle eines überlasteten Spiegel-Servers können Sie es später erneut versuchen. ``` In my `/etc/apt/sources.list`, the Ubuntu mirrors are specified through `mirrors.txt` and `mirrors://` URLs, as in ``` deb mirror://mirrors.ubuntu.com/mirrors.txt/ disco main restricted ... ``` When I change that manually to a regular HTTP URL for some fixed mirror (e.g. `deb http://de.ubuntu.com/ubuntu/ disco main restricted`), it works and the upgrade process proceeds normally. It looks like ubuntu-release-upgrader does not recognize the `mirrors://` URL format when the package sources from disco to eoan. As a result during the upgrade process the sources list ends up almost empty (only InRelease packages), and consequently the ubuntu-minimal package is not found. ProblemType: Bug DistroRelease: Ubuntu 19.04 Package: ubuntu-release-upgrader-core 1:19.04.16.7 ProcVersionSignature: Ubuntu 5.0.0-31.33-generic 5.0.21 Uname: Linux 5.0.0-31-generic x86_64 ApportVersion: 2.20.10-0ubuntu27.1 Architecture: amd64 CrashDB: ubuntu Date: Sat Oct 26 10:52:49 2019 InstallationDate: Installed on 2018-12-26 (304 days ago) InstallationMedia: Kubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.2) PackageArchitecture: all SourcePackage: ubuntu-release-upgrader UpgradeStatus: Upgraded to disco on 2019-10-26 (0 days ago) VarLogDistupgradeAptlog: Log time: 2019-10-26 10:52:28.812605 Log time: 2019-10-26 10:52:35.715386 Log time: 2019-10-26 10:52:49.543592 Log time: 2019-10-26 10:52:51.766789 ** Affects: ubuntu-release-upgrader (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug disco dist-upgrade -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1849918 Title: Release upgrade disco->eoan fails when Ubuntu mirrors are specified in mirrors:// format To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1849918/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
