unable to upgrade distro reverts back to current state

[Kaushik Guha]

Could not calculate the upgrade

An unresolvable problem occurred while calculating the upgrade.

This was likely caused by:
* Unofficial software packages not provided by Ubuntu
Please use the tool 'ppa-purge' from the ppa-purge
package to remove software from a Launchpad PPA and
try the upgrade again.

ProblemType: Bug
DistroRelease: Ubuntu 23.04
Package: ubuntu-release-upgrader-core 1:23.04.7
ProcVersionSignature: Ubuntu 6.2.0-37.38-generic 6.2.16
Uname: Linux 6.2.0-37-generic x86_64
ApportVersion: 2.26.1-0ubuntu2.1
Architecture: amd64
CasperMD5CheckResult: pass
CrashDB: ubuntu
CrashReports:
 640:0:0:48783:2023-11-25 19:00:19.708881873 +0530:2023-11-25 19:00:19.708881873 +0530:/var/crash/_usr_sbin_aptd.0.crash
 640:1000:1000:74072:2023-11-25 12:42:36.503665183 +0530:2023-11-25 12:42:36.503665183 +0530:/var/crash/_usr_bin_classicmenu-indicator.1000.crash
 640:1000:115:2324586:2023-11-25 12:45:31.429011233 +0530:2023-11-25 12:45:30.081092747 +0530:/var/crash/_usr_bin_mate-power-manager.1000.crash
CurrentDesktop: MATE
Date: Sat Nov 25 19:13:42 2023
InstallationDate: Installed on 2023-08-15 (102 days ago)
InstallationMedia: Ubuntu 23.04 "Lunar Lobster" - Release amd64 (20230418)
PackageArchitecture: all
ProcEnviron:
 LANG=en_US.UTF-8
 LANGUAGE=en_US
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to lunar on 2023-11-25 (0 days ago)

[Alex Murray (alexmurray)]

Thanks for taking the time to report this bug and helping to make Ubuntu better. We appreciate the difficulties you are facing, but this appears to be a "regular" (non-security) bug. I have unmarked it as a security issue since this bug does not show evidence of allowing attackers to cross privilege boundaries nor directly cause loss of data/privacy. Please feel free to report any other bugs you may find.