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
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 sources. list. Im Falle eines überlasteten Spiegel-Servers
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/
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
``` //mirrors. ubuntu. com/mirrors. txt/ disco main restricted
deb mirror:
...
```
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 release- upgrader- core 1:19.04.16.7 ature: Ubuntu 5.0.0-31.33-generic 5.0.21 ture: all release- upgrader deAptlog:
DistroRelease: Ubuntu 19.04
Package: ubuntu-
ProcVersionSign
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)
PackageArchitec
SourcePackage: ubuntu-
UpgradeStatus: Upgraded to disco on 2019-10-26 (0 days ago)
VarLogDistupgra
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