Update App version to 0.1.2

Signed-off-by: luckfox-eng29 <eng29@luckfox.com>

boot_storage.go

@@ -0,0 +1,57 @@
+package kvm
+
+import (
+	"os"
+	"strings"
+	"sync"
+)
+
+type BootStorageType string
+
+const (
+	BootStorageUnknown BootStorageType = "unknown"
+	BootStorageEMMC    BootStorageType = "emmc"
+	BootStorageSD      BootStorageType = "sd"
+)
+
+var (
+	bootStorageOnce sync.Once
+	bootStorageType BootStorageType = BootStorageUnknown
+)
+
+func GetBootStorageType() BootStorageType {
+	bootStorageOnce.Do(func() {
+		bootStorageType = detectBootStorageType()
+	})
+	return bootStorageType
+}
+
+func IsBootFromSD() bool {
+	return GetBootStorageType() == BootStorageSD
+}
+
+func detectBootStorageType() BootStorageType {
+	cmdlineBytes, err := os.ReadFile("/proc/cmdline")
+	if err != nil {
+		return BootStorageUnknown
+	}
+
+	cmdline := strings.TrimSpace(string(cmdlineBytes))
+	for _, field := range strings.Fields(cmdline) {
+		if !strings.HasPrefix(field, "root=") {
+			continue
+		}
+		root := strings.TrimPrefix(field, "root=")
+		switch {
+		case strings.HasPrefix(root, "/dev/mmcblk0"):
+			return BootStorageEMMC
+		case strings.HasPrefix(root, "/dev/mmcblk1"):
+			return BootStorageSD
+		default:
+			return BootStorageUnknown
+		}
+	}
+
+	return BootStorageUnknown
+}
+