Allow exporting keys without efivars present and update CI staticcheck

Makefile

@@ -63,7 +63,7 @@ clean:
 .PHONY: lint
 lint:
 	go vet ./...
-	go run honnef.co/go/tools/cmd/staticcheck@v0.4.7 ./...
+	go run honnef.co/go/tools/cmd/staticcheck@v0.5.1 ./...
 
 .PHONY: test
 test:

cmd/sbctl/enroll-keys.go

@@ -253,11 +253,12 @@ func KeySync(state *config.State, oems []string) error {
 }
 
 func RunEnrollKeys(state *config.State) error {
-	// SetupMode is not necessarily required on a partial enrollment
 	ok, err := state.Efivarfs.GetSetupMode()
-	if err != nil {
+	// EFI variables are missing in some CI / build environments and setup mode is not needed for exporting keys
+	if err != nil && enrollKeysCmdOptions.Export.Value == "" {
 		return err
 	}
+	// SetupMode is not necessarily required for a partial enrollment and not needed for exporting keys
 	if !ok && enrollKeysCmdOptions.Partial.Value == "" && enrollKeysCmdOptions.Export.Value == "" {
 		return ErrSetupModeDisabled
 	}

cmd/sbctl/main.go

@@ -171,11 +171,11 @@ func main() {
 		} else if errors.Is(err, sbctl.ErrImmutable) {
 			logging.Println("You need to chattr -i files in efivarfs")
 		} else if errors.Is(err, sbctl.ErrOprom) {
-			logging.Error(fmt.Errorf(opromErrorMsg))
+			logging.Error(errors.New(opromErrorMsg))
 		} else if errors.Is(err, sbctl.ErrNoEventlog) {
-			logging.Error(fmt.Errorf(noEventlogErrorMsg))
+			logging.Error(errors.New(noEventlogErrorMsg))
 		} else if errors.Is(err, ErrSetupModeDisabled) {
-			logging.Error(fmt.Errorf(setupModeDisabled))
+			logging.Error(errors.New(setupModeDisabled))
 		} else if !errors.Is(err, ErrSilent) {
 			logging.Error(err)
 		}