Missing third party authority and also missing Ubuntu minimal.

[Chang, Tai-Yuan]

Missing third party authority and also missing Ubuntu minimal.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubuntu-release-upgrader-core 1:20.04.30
ProcVersionSignature: Ubuntu 5.8.0-41.46~20.04.1-generic 5.8.18
Uname: Linux 5.8.0-41-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.14
Architecture: amd64
CasperMD5CheckResult: skip
CrashDB: ubuntu
Date: Fri Aug 26 08:54:06 2022
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to focal on 2022-08-26 (0 days ago)
VarLogDistupgradeAptlog:
 Log time: 2022-08-26 08:46:02.293197
 Log time: 2022-08-26 08:46:04.755892
 Log time: 2022-08-26 08:53:53.309686
 Log time: 2022-08-26 08:54:07.287821
VarLogDistupgradeTermlog:

[Nick Rosbrook (enr0n)]

The mirror you have chosen (http://ftp.ntou.edu.tw/ubuntu//dists/) does not have information for the Jammy release:

2022-08-26 08:46:21,933 DEBUG examining: 'deb http://ftp.ntou.edu.tw/ubuntu/ focal main restricted'
2022-08-26 08:46:21,934 DEBUG verifySourcesListEntry: deb http://ftp.ntou.edu.tw/ubuntu/ jammy main restricted
2022-08-26 08:46:21,934 DEBUG url_downloadable: http://ftp.ntou.edu.tw/ubuntu//dists/jammy/Release
2022-08-26 08:46:21,934 DEBUG s='http' n='ftp.ntou.edu.tw' p='/ubuntu//dists/jammy/Release' q='' f=''
2022-08-26 08:46:21,957 DEBUG error from httplib: 'HTTP Error 404: Not Found'

Please select a different mirror of the Ubuntu archive and try the upgrade again.

[Launchpad Janitor (janitor)]

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