Describe all problems even when there are protected removals by evan-goode · Pull Request #1743 · rpm-software-management/libdnf

evan-goode · 2026-01-28T22:01:36Z

Previously, if a transaction involved removal (or dependency break) of a protected package, only the protected package problem would be described by describeProblemRules. Information about excluded or versionlocked packages would be missing.

Setup:

dnf4 downgrade -y systemd
dnf4 versionlock add systemd
dnf4 update

Current output:

Problem: The operation would result in removing the following protected packages: systemd

Output with this patch:

 Problem 1: The operation would result in broken dependencies for the following protected packages: systemd
  - package systemd-udev-258.3-2.fc43.x86_64 from updates requires systemd(x86-64) = 258.3-2.fc43, but none of the providers can be installed
  - cannot install the best update candidate for package systemd-udev-258-1.fc43.x86_64
  - package systemd-258.3-2.fc43.x86_64 from updates is filtered out by exclude filtering
 Problem 2: The operation would result in broken dependencies for the following protected packages: systemd
  - package systemd-resolved-258.3-2.fc43.x86_64 from updates requires systemd(x86-64) = 258.3-2.fc43, but none of the providers can be installed
  - cannot install the best update candidate for package systemd-resolved-258-1.fc43.x86_64
  - package systemd-258.3-2.fc43.x86_64 from updates is filtered out by exclude filtering
 Problem 3: The operation would result in broken dependencies for the following protected packages: systemd
  - package systemd-container-258.3-2.fc43.x86_64 from updates requires systemd(x86-64) = 258.3-2.fc43, but none of the providers can be installed
  - cannot install the best update candidate for package systemd-container-258-1.fc43.x86_64
  - package systemd-258.3-2.fc43.x86_64 from updates is filtered out by exclude filtering
 Problem 4: The operation would result in broken dependencies for the following protected packages: systemd
  - package systemd-pam-258.3-2.fc43.x86_64 from updates requires systemd = 258.3-2.fc43, but none of the providers can be installed
  - cannot install the best update candidate for package systemd-pam-258-1.fc43.x86_64
  - package systemd-258.3-2.fc43.i686 from updates is filtered out by exclude filtering
  - package systemd-258.3-2.fc43.x86_64 from updates is filtered out by exclude filtering
 Problem 5: The operation would result in broken dependencies for the following protected packages: systemd
  - package systemd-258-1.fc43.x86_64 from @System requires libsystemd-shared-258-1.fc43.so()(64bit), but none of the providers can be installed
  - package systemd-258-1.fc43.x86_64 from @System requires libsystemd-shared-258-1.fc43.so(SD_SHARED)(64bit), but none of the providers can be installed
  - package systemd-258-1.fc43.x86_64 from @System requires systemd-shared(x86-64) = 258-1.fc43, but none of the providers can be installed
  - package systemd-libs-258.3-2.fc43.x86_64 from updates conflicts with systemd-shared < 258.3-2.fc43 provided by systemd-shared-258-1.fc43.x86_64 from @System
  - package systemd-libs-258.3-2.fc43.x86_64 from updates conflicts with systemd-shared < 258.3-2.fc43 provided by systemd-shared-258-1.fc43.x86_64 from fedora
  - cannot install the best update candidate for package systemd-libs-258-1.fc43.x86_64
  - cannot install the best update candidate for package systemd-258-1.fc43.x86_64
 Problem 6: The operation would result in broken dependencies for the following protected packages: systemd
  - package subscription-manager-1.30.5-5.fc43.x86_64 from @System requires systemd, but none of the providers can be installed
  - package systemd-258-1.fc43.x86_64 from fedora requires (systemd-rpm-macros = 258-1.fc43 if rpm-build), but none of the providers can be installed
  - package systemd-258-1.fc43.i686 from fedora requires (systemd-rpm-macros = 258-1.fc43 if rpm-build), but none of the providers can be installed
  - package systemd-258-1.fc43.x86_64 from @System requires (systemd-rpm-macros = 258-1.fc43 if rpm-build), but none of the providers can be installed
  - cannot install both systemd-rpm-macros-258.3-2.fc43.noarch from updates and systemd-rpm-macros-258-1.fc43.noarch from @System
  - cannot install both systemd-rpm-macros-258.3-2.fc43.noarch from updates and systemd-rpm-macros-258-1.fc43.noarch from fedora
  - cannot install the best update candidate for package systemd-rpm-macros-258-1.fc43.noarch
  - cannot install the best update candidate for package subscription-manager-1.30.5-5.fc43.x86_64
  - cannot install the best update candidate for package rpm-build-6.0.1-1.fc43.x86_64
  - package systemd-258.3-2.fc43.i686 from updates is filtered out by exclude filtering
  - package systemd-258.3-2.fc43.x86_64 from updates is filtered out by exclude filtering
 Problem 7: The operation would result in broken dependencies for the following protected packages: systemd
  - package sssd-kcm-2.11.1-4.fc43.x86_64 from @System requires systemd, but none of the providers can be installed
  - package systemd-258-1.fc43.x86_64 from @System requires libsystemd-shared-258-1.fc43.so()(64bit), but none of the providers can be installed
  - package systemd-258-1.fc43.x86_64 from @System requires libsystemd-shared-258-1.fc43.so(SD_SHARED)(64bit), but none of the providers can be installed
  - package systemd-258-1.fc43.x86_64 from @System requires systemd-shared(x86-64) = 258-1.fc43, but none of the providers can be installed
  - package systemd-258-1.fc43.x86_64 from fedora requires libsystemd-shared-258-1.fc43.so()(64bit), but none of the providers can be installed
  - package systemd-258-1.fc43.x86_64 from fedora requires libsystemd-shared-258-1.fc43.so(SD_SHARED)(64bit), but none of the providers can be installed
  - package systemd-258-1.fc43.x86_64 from fedora requires systemd-shared(x86-64) = 258-1.fc43, but none of the providers can be installed
  - package systemd-258-1.fc43.i686 from fedora requires systemd-libs(x86-32) = 258-1.fc43, but none of the providers can be installed
  - cannot install both systemd-shared-258.3-2.fc43.x86_64 from updates and systemd-shared-258-1.fc43.x86_64 from @System
  - package systemd-shared-258.3-2.fc43.x86_64 from updates conflicts with systemd-libs < 258.3-2.fc43 provided by systemd-libs-258-1.fc43.i686 from fedora
  - cannot install both systemd-shared-258.3-2.fc43.x86_64 from updates and systemd-shared-258-1.fc43.x86_64 from fedora
  - cannot install the best update candidate for package systemd-shared-258-1.fc43.x86_64
  - cannot install the best update candidate for package sssd-kcm-2.11.1-4.fc43.x86_64
  - package systemd-258.3-2.fc43.i686 from updates is filtered out by exclude filtering
  - package systemd-258.3-2.fc43.x86_64 from updates is filtered out by exclude filtering
 Problem 8: The operation would result in broken dependencies for the following protected packages: systemd
  - package mock-6.6-1.fc43.noarch from @System requires systemd-container, but none of the providers can be installed
  - package systemd-container-258-1.fc43.x86_64 from @System requires libsystemd-shared-258-1.fc43.so()(64bit), but none of the providers can be installed
  - package systemd-container-258-1.fc43.x86_64 from @System requires libsystemd-shared-258-1.fc43.so(SD_SHARED)(64bit), but none of the providers can be installed
  - package systemd-container-258-1.fc43.x86_64 from fedora requires libsystemd-shared-258-1.fc43.so()(64bit), but none of the providers can be installed
  - package systemd-container-258-1.fc43.x86_64 from fedora requires libsystemd-shared-258-1.fc43.so(SD_SHARED)(64bit), but none of the providers can be installed
  - package systemd-container-258-1.fc43.i686 from fedora requires libsystemd-shared-258-1.fc43.so, but none of the providers can be installed
  - package systemd-container-258-1.fc43.i686 from fedora requires libsystemd-shared-258-1.fc43.so(SD_SHARED), but none of the providers can be installed
  - package systemd-libs-258.3-2.fc43.x86_64 from updates conflicts with systemd-shared < 258.3-2.fc43 provided by systemd-shared-258-1.fc43.x86_64 from @System
  - package systemd-libs-258.3-2.fc43.x86_64 from updates conflicts with systemd-shared < 258.3-2.fc43 provided by systemd-shared-258-1.fc43.i686 from fedora
  - package systemd-libs-258.3-2.fc43.x86_64 from updates conflicts with systemd-shared < 258.3-2.fc43 provided by systemd-shared-258-1.fc43.x86_64 from fedora
  - package systemd-devel-258.3-2.fc43.x86_64 from updates requires systemd-libs(x86-64) = 258.3-2.fc43, but none of the providers can be installed
  - package systemd-container-258.3-2.fc43.i686 from updates requires systemd(x86-32) = 258.3-2.fc43, but none of the providers can be installed
  - package systemd-container-258.3-2.fc43.x86_64 from updates requires systemd(x86-64) = 258.3-2.fc43, but none of the providers can be installed
  - cannot install the best update candidate for package systemd-devel-258-1.fc43.x86_64
  - cannot install the best update candidate for package mock-6.6-1.fc43.noarch
  - package systemd-258.3-2.fc43.i686 from updates is filtered out by exclude filtering
  - package systemd-258.3-2.fc43.x86_64 from updates is filtered out by exclude filtering
 Problem 9: The operation would result in broken dependencies for the following protected packages: systemd
  - package sssd-common-2.11.1-4.fc43.x86_64 from @System requires systemd, but none of the providers can be installed
  - package systemd-258-1.fc43.x86_64 from @System requires libsystemd-shared-258-1.fc43.so()(64bit), but none of the providers can be installed
  - package systemd-258-1.fc43.x86_64 from @System requires libsystemd-shared-258-1.fc43.so(SD_SHARED)(64bit), but none of the providers can be installed
  - package systemd-258-1.fc43.x86_64 from @System requires systemd-shared(x86-64) = 258-1.fc43, but none of the providers can be installed
  - package systemd-258-1.fc43.x86_64 from fedora requires libsystemd-shared-258-1.fc43.so()(64bit), but none of the providers can be installed
  - package systemd-258-1.fc43.x86_64 from fedora requires libsystemd-shared-258-1.fc43.so(SD_SHARED)(64bit), but none of the providers can be installed
  - package systemd-258-1.fc43.x86_64 from fedora requires systemd-shared(x86-64) = 258-1.fc43, but none of the providers can be installed
  - package systemd-258-1.fc43.i686 from fedora requires systemd-libs(x86-32) = 258-1.fc43, but none of the providers can be installed
  - cannot install both systemd-shared-258.3-2.fc43.x86_64 from updates and systemd-shared-258-1.fc43.x86_64 from @System
  - package systemd-shared-258.3-2.fc43.x86_64 from updates conflicts with systemd-libs < 258.3-2.fc43 provided by systemd-libs-258-1.fc43.i686 from fedora
  - cannot install both systemd-shared-258.3-2.fc43.x86_64 from updates and systemd-shared-258-1.fc43.x86_64 from fedora
  - package systemd-sysusers-258.3-2.fc43.x86_64 from updates requires libsystemd-shared-258.3-2.fc43.so()(64bit), but none of the providers can be installed
  - package systemd-sysusers-258.3-2.fc43.x86_64 from updates requires libsystemd-shared-258.3-2.fc43.so(SD_SHARED)(64bit), but none of the providers can be installed
  - package systemd-sysusers-258.3-2.fc43.x86_64 from updates requires systemd-shared(x86-64) = 258.3-2.fc43, but none of the providers can be installed
  - cannot install the best update candidate for package systemd-sysusers-258-1.fc43.x86_64
  - cannot install the best update candidate for package sssd-common-2.11.1-4.fc43.x86_64
  - package systemd-258.3-2.fc43.i686 from updates is filtered out by exclude filtering
  - package systemd-258.3-2.fc43.x86_64 from updates is filtered out by exclude filtering

which is perhaps too verbose and not ideal, but at least the user gets the message that the necessary package (systemd-258.3-2.fc43.x86_64) was filtered by exclude.

This PR includes commits from #1740 because the ci-dnf-stack PR will depend on rpm-software-management/ci-dnf-stack#1810.

For: RHEL-115194

Previously, if a transaction involved removal (or dependency break) of a protected package, only the protected package problem would be described by `describeProblemRules`. Information about excluded or versionlocked packages would be missing. For: RHEL-115194

The error message now distinguishes removal of a protected package from breaking dependencies of protected packages.

m-blaha

There definitely is space for enhancement of solver error messages. But this patch is move in right direction.

evan-goode · 2026-02-04T19:43:14Z

Agreed. Packit cannot test this itself, but tests as passing locally with rpm-software-management/ci-dnf-stack#1822, merging.

evan-goode requested a review from a team as a code owner January 28, 2026 22:01

evan-goode requested review from jrohel and removed request for a team January 28, 2026 22:01

evan-goode mentioned this pull request Jan 28, 2026

protected-packages: new 'broken dependencies' error message rpm-software-management/ci-dnf-stack#1822

Merged

evan-goode added blocked and removed blocked labels Jan 28, 2026

evan-goode added 2 commits February 2, 2026 09:09

Clearer error for protected package broken dependencies

aa32b53

The error message now distinguishes removal of a protected package from breaking dependencies of protected packages.

evan-goode force-pushed the evan-goode/protected-problems branch from 3f986ec to aa32b53 Compare February 2, 2026 14:09

m-blaha approved these changes Feb 4, 2026

View reviewed changes

evan-goode merged commit f701c48 into rpm-software-management:dnf-4-master Feb 4, 2026
5 of 8 checks passed

This was referenced Feb 4, 2026

rhel-10.2: Describe all problems even when there are protected removals #1751

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Describe all problems even when there are protected removals#1743

Describe all problems even when there are protected removals#1743
evan-goode merged 2 commits intorpm-software-management:dnf-4-masterfrom
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evan-goode commented Jan 28, 2026

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evan-goode commented Jan 28, 2026

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