dist-upgrade takes too long to load

[Seija K.]

It happens when running sudo apt update && sudo apt dist-upgrade. The download takes a few minutes, but the upgrade portion can take minutes or even up to half an hour, especially when running after installing 18.04.4

ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: ubuntu-release-upgrader-core 1:19.10.15.4
ProcVersionSignature: Ubuntu 5.3.0-45.37-generic 5.3.18
Uname: Linux 5.3.0-45-generic x86_64
ApportVersion: 2.20.11-0ubuntu8.8
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Fri Apr 3 15:42:15 2020
InstallationDate: Installed on 2020-04-03 (0 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
PackageArchitecture: all
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
Symptom: dist-upgrade
UpgradeStatus: No upgrade log present (probably fresh install)

[Seija K. (rose128)]

Ubuntu 18.04.4

ubuntu-release-upgrader-core:
  Installed: 1:19.10.15.4
  Candidate: 1:19.10.15.4
  Version table:
 *** 1:19.10.15.4 500
        500 http://us.archive.ubuntu.com/ubuntu eoan-updates/main amd64 Packages
        500 http://us.archive.ubuntu.com/ubuntu eoan-updates/main i386 Packages
        100 /var/lib/dpkg/status
     1:19.10.15 500
        500 http://us.archive.ubuntu.com/ubuntu eoan/main amd64 Packages
        500 http://us.archive.ubuntu.com/ubuntu eoan/main i386 Packages

[Michael Haworth (bailtree)]

Not a bug per se, in fact the description is more or less expected, as dist-upgrades can cause many packages to be installed.