Ubuntu
ubuntu-release-upgrader package

dist-upgrade takes too long to load

Asked by 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)

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This question was originally filed as bug #1870610.

Revision history for this message
Michael Haworth (bailtree) said : 		#1

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

Revision history for this message
actionparsnip (andrew-woodhead666) said : 		#2

If you install and use apt-fast it can help speed up updates.

Revision history for this message
Manfred Hampl (m-hampl) said : 		#3

Can you specify more in detail, which part of the upgrade takes longer than expected?

When you do "sudo apt update && sudo apt dist-upgrade" there are several different steps:

1. apt update downloads the repository information (which packages are available, with which version). Duration depends among others on network speed, a summary line should be shown "Fetched xxx kB in xxx s (x kB/s)"
2. apt dist-upgrade identifies the packages to be updated and asks for confirmation
3. apt dist-upgrade downloads the new or updated packages to install. Duration depends on number and size of packages and on network speed, a summary line should be shown "Fetched xxx kB in xxx s (x kB/s)"
4. apt dist-upgrade installs the new or updated packages. Duration mainly depends on number of packages to install and the performance of your system. In case that creating a new initramfs is required, this will add also to the time needed.

Which of the steps takes so long?
What network speed is shown for the two download steps?

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