theforeman/foreman · error · UnsupportedOS

Unsupported or no operating system found for this host.

Error message

Unsupported or no operating system found for this host.

What it means

Error "Unsupported or no operating system found for this host." thrown in theforeman/foreman.

Source

Thrown at app/services/foreman/renderer/scope/macros/host_template.rb:197

                #{banner}
                #{is_dnf ? 'dnf' : 'yum'} -y install #{packages}
              CMD
            when 'Debian'
              <<~CMD
                #{banner}
                if [ -x "$(command -v subscription-manager)" ] ; then subscription-manager refresh ; fi
                export DEBIAN_FRONTEND=noninteractive
                apt-get -y update
                apt-get -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confold" -y install #{packages}
              CMD
            when 'Suse'
              <<~CMD
                #{banner}
                zypper refresh
                zypper -n --gpg-auto-import-keys install #{packages}
              CMD
            else
              raise UnsupportedOS.new
            end
          end

          apipie :method, 'Generates commands for update of all packages' do
            description 'Supported OS families: Redhat, Debian & Suse'
            returns String, desc: 'Update commands'
            example "CentOS host: update_packages #=> yum -y update"
            example "Fedora host: update_packages #=> dnf -y update"
            example "Debian host: update_packages #=> apt-get -y update; apt-get -y upgrade"
          end
          def update_packages
            banner = <<~CMD
              echo '#'
              echo '# Updating packages'
              echo '#'
            CMD

            case host.operatingsystem&.family

View on GitHub (pinned to 6b05625475)

When it happens

Trigger: Thrown at app/services/foreman/renderer/scope/macros/host_template.rb:197 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of theforeman/foreman@6b05625475 (2026-08-23). Data as JSON: /api/errors/5f8528e71e7910a5. Report an issue: GitHub.