** Description changed: + [Impact] + Upgrades hang for a long time searching for obsolete software, frustrating users. + + [Test plan] + + 1. With each, update, and proposed version do: + + 0. launch a container / VM + 1. do-release-upgrade + 2. Note down the time it took for the obsolete software stage, and the packages marked for removal. + + 2. Check that the time is now significantly smaller than before + + For example with the default ubuntu:jammy lxd container: + + before: ~8s + 2024-07-16 15:13:25,575 DEBUG Start checking for obsolete pkgs + 2024-07-16 15:13:33,847 DEBUG Finish checking for obsolete pkgs + + after: ~0.5s + 2024-07-16 15:22:21,977 DEBUG Start checking for obsolete pkgs + 2024-07-16 15:22:22,508 DEBUG Finish checking for obsolete pkgs + + 3. Compare the list of packages marked for removal: It should be the + same or more packages. + + before: + 2024-07-16 15:13:33,907 DEBUG The following packages are marked for removal: libperl5.34 python3.10 libctf-nobfd0 libblockdev-part2 libblockdev-swap2 libpcre3 libunistring2 libaio1 libmpdec3 libbinutils python3-jeepney libpython3.10-minimal libblockdev-fs2 libpython3.10-stdlib binuti + ls-x86-64-linux-gnu irqbalance libbpf0 libtss2-mu0 libldap-2.5-0 isc-dhcp-common libisc-export1105 libappstream4 libpython3.10 libblockdev-loop2 libblockdev2 libblockdev-part-err2 isc-dhcp-client libctf0 libnsl2 libblockdev-utils2 python3-jaraco.classes libprocps8 binutils-common libdns-export1110 libsframe1 pkexec python3-keyring libgprofng0 libcbor0.8 python3.10-minimal perl-modules-5.34 ubuntu-advantage-tools gcc-12-base libblockdev-crypto2 libicu70 libnetplan0 policykit-1 binutils python3-secretstorage + + after: + 2024-07-16 15:22:22,555 DEBUG The following packages are marked for removal: libperl5.34 python3.10 libctf-nobfd0 libblockdev-part2 libblockdev-swap2 libpcre3 libunistring2 libaio1 libmpdec3 libbinutils python3-jeepney libpython3.10-minimal libblockdev-fs2 libpython3.10-stdlib binuti + ls-x86-64-linux-gnu irqbalance libbpf0 libtss2-mu0 libldap-2.5-0 isc-dhcp-common libisc-export1105 libappstream4 libpython3.10 libblockdev-loop2 libblockdev2 libblockdev-part-err2 isc-dhcp-client libctf0 libnsl2 libblockdev-utils2 python3-jaraco.classes libprocps8 binutils-common libdns-export1110 libsframe1 pkexec python3-keyring libgprofng0 libcbor0.8 python3.10-minimal perl-modules-5.34 ubuntu-advantage-tools gcc-12-base libblockdev-crypto2 libicu70 libnetplan0 policykit-1 binutils python3-secretstorage + + + This small container is not necessarily the best test case to demonstrate it and ensure correctness but the fastest one; it may also be suitable to run it in a desktop VM instead. + + [Where problems could occur] + The upgrade process could crash in case the solver fails to solve the request it is being given. This is the last step of the upgrade though, so it is reasonable safe. + + One could have skipped on a solver failure but this way we'd get crash reports + in the unlikely case they happen. + + [Original bug report] + + Test Case: 1. Fresh Bionic installation from 18.04.4 + all updates applied 2. Run: update-manager -d 3. Proceed with the upgrade. Actual Result: Everything goes well but the stage "Searching for obsolete software" takes a very long time. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: ubuntu-release-upgrader-core 1:20.04.18 ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30 Uname: Linux 5.4.0-26-generic x86_64 ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 CasperMD5CheckResult: skip CrashDB: ubuntu CurrentDesktop: ubuntu:GNOME Date: Wed Apr 22 10:34:19 2020 InstallationDate: Installed on 2020-04-20 (2 days ago) InstallationMedia: Ubuntu 18.04.4 LTS "Bionic Beaver" - Release amd64 (20200203.1) PackageArchitecture: all ProcEnviron: - TERM=xterm-256color - PATH=(custom, no user) - XDG_RUNTIME_DIR=<set> - LANG=en_US.UTF-8 - SHELL=/bin/bash + TERM=xterm-256color + PATH=(custom, no user) + XDG_RUNTIME_DIR=<set> + LANG=en_US.UTF-8 + SHELL=/bin/bash SourcePackage: ubuntu-release-upgrader Symptom: ubuntu-release-upgrader UpgradeStatus: Upgraded to focal on 2020-04-22 (0 days ago) VarLogDistupgradeTermlog:
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1874272 Title: Stage "searching for obsolete software" takes a very long time (30 minutes) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1874272/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
