failed to update ubuntu to version 22.04 an incomprehensible error occurred

[Bekhruz]

failed to update ubuntu to version 22.04 an incomprehensible error occurred

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubuntu-release-upgrader-core 1:20.04.37 [origin: unknown]
ProcVersionSignature: Ubuntu 5.15.0-46.49~20.04.1-generic 5.15.39
Uname: Linux 5.15.0-46-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.24
Architecture: amd64
CasperMD5CheckResult: skip
CrashDB: ubuntu
Date: Thu Aug 25 11:05:03 2022
InstallationDate: Installed on 2022-03-21 (156 days ago)
InstallationMedia: Ubuntu 20.04.4 LTS "Focal Fossa" - Release amd64 (20220223)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to focal on 2022-08-25 (0 days ago)
VarLogDistupgradeAptlog:
 Log time: 2022-08-25 11:03:53.764986
 Log time: 2022-08-25 11:03:57.848446
 Log time: 2022-08-25 11:04:54.540069
 Log time: 2022-08-25 11:05:07.018440
VarLogDistupgradeTermlog:

[Nick Rosbrook (enr0n)]

It looks like there is currently a problem with your mirror (http://uz.archive.ubuntu.com/ubuntu/), and there is no information for the jammy release:

2022-08-25 11:04:15,670 DEBUG examining: 'deb http://uz.archive.ubuntu.com/ubuntu/ focal main restricted'
2022-08-25 11:04:15,670 DEBUG verifySourcesListEntry: deb http://uz.archive.ubuntu.com/ubuntu/ jammy main restricted
2022-08-25 11:04:15,670 DEBUG url_downloadable: http://uz.archive.ubuntu.com/ubuntu//dists/jammy/Release
2022-08-25 11:04:15,670 DEBUG s='http' n='uz.archive.ubuntu.com' p='/ubuntu//dists/jammy/Release' q='' f=''
2022-08-25 11:04:15,693 DEBUG error from httplib: 'HTTP Error 404: Not Found'

In the mean time, you can try a different mirror, and then try the upgrade again.

[Launchpad Janitor (janitor)]

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