cmd/cli: add missing pre-run setup for start command

Otherwise, ctrld won't be able to reset DNS correctly if problems
happened during self-check process.

cmd/cli/cli.go

@@ -1061,7 +1061,7 @@ func uninstall(p *prog, s service.Service) {
 		p.resetDNS(false, true)
 
 		// Iterate over all physical interfaces and restore DNS if a saved static config exists.
-		withEachPhysicalInterfaces("", "restore static DNS", func(i *net.Interface) error {
+		withEachPhysicalInterfaces(p.runningIface, "restore static DNS", func(i *net.Interface) error {
 			file := savedStaticDnsSettingsFilePath(i)
 			if _, err := os.Stat(file); err == nil {
 				if err := restoreDNS(i); err != nil {

cmd/cli/commands.go

@@ -234,6 +234,7 @@ NOTE: running "ctrld start" without any arguments will start already installed c
 				mainLog.Load().Error().Msg(err.Error())
 				return
 			}
+			p.preRun()
 
 			status, err := s.Status()
 			isCtrldRunning := status == service.StatusRunning