Add option to use after booting system

main.go

@@ -8,7 +8,7 @@ import (
 	"github.com/rwinkhart/go-boilerplate/other"
 )
 
-const mountPoint = "/mnt/cph"
+var mountPoint = "/mnt/cph"
 
 var username string
 var partitionR, partitionB string
@@ -23,9 +23,13 @@ func main() {
 		other.PrintError("This utility must be run as root", 1)
 	}
 
-	partitionR = front.Input("Target root partition (/dev/driveparition):")
-	partitionB = front.Input("Target boot (efi) partition (/dev/driveparition):")
-	mkdir("/mnt/cph")
+	partitionR = front.Input("Target root partition (/dev/driveparition OR \"/\" if already booted):")
+	if partitionR != "/" {
+		partitionB = front.Input("Target boot (efi) partition (/dev/driveparition):")
+		mkdir("/mnt/cph")
+	} else {
+		mountPoint = ""
+	}
 
 	for {
 		fmt.Println()

utilities.go

@@ -41,6 +41,10 @@ func getUsername() string {
 }
 
 func partitionIsMounted() bool {
+	if partitionR == "/" {
+		return true
+	}
+
 	isMounted, err := mnt.Mounted(mountPoint)
 	if err != nil {
 		other.PrintError("Failed to verify whether "+partitionR+" is mounted", 1)
@@ -49,6 +53,10 @@ func partitionIsMounted() bool {
 }
 
 func mountPartition() {
+	if partitionR == "/" {
+		return
+	}
+
 	if !partitionIsMounted() {
 		// root
 		cmd := exec.Command("mount", partitionR, mountPoint)