Aborted upgrade to development release from focal to jammy

[Donald O]

Invalid package information

After updating your package information, the essential package
'ubuntu-minimal' could not be located. This may be because you have
no official mirrors listed in your software sources, or because of
excessive load on the mirror you are using. See /etc/apt/sources.list
for the current list of configured software sources.
In the case of an overloaded mirror, you may want to try the upgrade
again later.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubuntu-release-upgrader-core 1:20.04.38
ProcVersionSignature: Ubuntu 5.4.0-122.138-generic 5.4.192
Uname: Linux 5.4.0-122-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.24
Architecture: amd64
CasperMD5CheckResult: skip
CrashDB: ubuntu
Date: Sat Jul 30 12:48:10 2022
InstallationDate: Installed on 2019-09-04 (1059 days ago)
InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to focal on 2022-07-30 (0 days ago)
VarLogDistupgradeAptlog:
 Log time: 2022-07-30 12:23:34.186997
 Log time: 2022-07-30 12:23:57.190403
 Log time: 2022-07-30 12:48:09.422924
 Log time: 2022-07-30 12:48:12.817813