login-app: warning if not booted UEFI

pkg/login-app/cmd/dialog-uefi.go

@@ -0,0 +1,21 @@
+package main
+
+import (
+	"github.com/rivo/tview"
+)
+
+func CreateUEFIDialog(app *tview.Application, next func()) {
+	modal := tview.NewModal().
+		SetText("Not UEFI boot\nYou should reboot, enter UEFI Setup (F2) and disable Legacy boot").
+		AddButtons([]string{"Reboot", "Ignore"}).
+		SetDoneFunc(func(buttonIndex int, buttonLabel string) {
+			if buttonLabel == "Reboot" {
+				app.Stop()
+			} else if buttonLabel == "Ignore" {
+				next()
+			}
+		})
+
+	app.SetRoot(modal, true)
+	app.SetFocus(modal)
+}