kubernetes/kops · error

unsupported package system

Error message

unsupported package system

What it means

Error "unsupported package system" thrown in kubernetes/kops.

Source

Thrown at upup/pkg/fi/nodeup/nodetasks/package.go:145

func (p *Package) String() string {
	return fmt.Sprintf("Package: %s", p.Name)
}

func (e *Package) Find(c *fi.NodeupContext) (*Package, error) {
	d, err := distributions.FindDistribution("/")
	if err != nil {
		return nil, fmt.Errorf("unknown or unsupported distro: %v", err)
	}

	if d.IsDebianFamily() {
		return e.findDpkg(c)
	}

	if d.IsRHELFamily() {
		return e.findYum(c)
	}

	return nil, fmt.Errorf("unsupported package system")
}

func (e *Package) findDpkg(c *fi.NodeupContext) (*Package, error) {
	args := []string{"dpkg-query", "-f", "${db:Status-Abbrev}\\t${Version}\\n", "-W", e.Name}
	human := strings.Join(args, " ")

	klog.V(2).Infof("Listing installed packages: %s", human)
	cmd := exec.Command(args[0], args[1:]...)
	output, err := cmd.CombinedOutput()
	if err != nil {
		if strings.Contains(string(output), "no packages found") {
			return nil, nil
		}
		return nil, fmt.Errorf("error listing installed packages: %v: %s", err, string(output))
	}

	installed := false
	var healthy *bool

View on GitHub (pinned to 4c8573c808)

When it happens

Trigger: Thrown at upup/pkg/fi/nodeup/nodetasks/package.go:145 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of kubernetes/kops@4c8573c808 (2026-09-05). Data as JSON: /api/errors/8ff70f7d11588289. Report an issue: GitHub.