update aborts when ubuntu-minimal package not found

[Ry4an Brase]

This system has been through multiple upgrades and I let it go out of support most recently. sources.list looks to be a mix of xenial and eoan currently.

ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: ubuntu-release-upgrader-core 1:19.10.15.4
ProcVersionSignature: Ubuntu 5.3.0-64.58-generic 5.3.18
Uname: Linux 5.3.0-64-generic x86_64
ApportVersion: 2.20.11-0ubuntu8.9
Architecture: amd64
CrashDB: ubuntu
Date: Sun Sep 27 15:47:14 2020
InstallationDate: Installed on 2016-07-28 (1522 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to eoan on 2020-09-27 (0 days ago)
VarLogDistupgradeAptlog:
 Log time: 2020-09-27 15:46:39.747082
 Log time: 2020-09-27 15:46:41.544473
 Log time: 2020-09-27 15:47:04.040841
 Log time: 2020-09-27 15:47:17.081068
VarLogDistupgradeTermlog:

[Brian Murray (brian-murray)]

Reviewing the log file, /var/log/dist-upgrade/main.log, from your upgrade attempt there was a failure to communicate with the mirror of the Ubuntu archive which you use. This could either be due to an issue with your connection to the mirror or with the mirror itself. Regardless, this is an issue you'll need to sort out before the upgrade can complete. If after resolving the communication error with the mirror you are still unable to upgrade to a new release of Ubuntu please open a new bug report so we'll have fresh log files. Thanks and good luck!

[Launchpad Janitor (janitor)]

[Expired for ubuntu-release-upgrader (Ubuntu) because there has been no activity for 60 days.]