Image Customizer: Remove "sudo" calls.

You don't need to call "sudo" if the entire program is run as root
already.

toolkit/tools/pkg/imagecustomizerlib/customizeoverlays.go

@@ -176,7 +176,7 @@ func addEquivalencyRules(selinuxMode imagecustomizerapi.SELinuxMode,
 
 	for _, overlay := range overlays {
 		err = imageChroot.UnsafeRun(func() error {
-			return shell.ExecuteLiveWithErr(1, "sudo", "semanage", "fcontext", "-a", "-e", overlay.MountPoint, overlay.UpperDir)
+			return shell.ExecuteLiveWithErr(1, "semanage", "fcontext", "-a", "-e", overlay.MountPoint, overlay.UpperDir)
 		})
 		if err != nil {
 			return fmt.Errorf("failed to add equivalency rule between %s and %s:\n%w", overlay.MountPoint, overlay.UpperDir, err)

toolkit/tools/pkg/imagecustomizerlib/shrinkfilesystems.go

@@ -79,13 +79,13 @@ func shrinkFilesystems(imageLoopDevice string, verityHashPartition *imagecustomi
 		}
 
 		// Check the file system with e2fsck
-		err = shell.ExecuteLive(true /*squashErrors*/, "sudo", "e2fsck", "-fy", partitionLoopDevice)
+		err = shell.ExecuteLive(true /*squashErrors*/, "e2fsck", "-fy", partitionLoopDevice)
 		if err != nil {
 			return fmt.Errorf("failed to check %s with e2fsck:\n%w", partitionLoopDevice, err)
 		}
 
 		// Shrink the file system with resize2fs -M
-		stdout, stderr, err := shell.Execute("sudo", "resize2fs", "-M", partitionLoopDevice)
+		stdout, stderr, err := shell.Execute("resize2fs", "-M", partitionLoopDevice)
 		if err != nil {
 			return fmt.Errorf("failed to resize %s with resize2fs:\n%v", partitionLoopDevice, stderr)
 		}
@@ -103,7 +103,7 @@ func shrinkFilesystems(imageLoopDevice string, verityHashPartition *imagecustomi
 		}
 
 		// Resize the partition with parted resizepart
-		_, stderr, err = shell.ExecuteWithStdin("yes" /*stdin*/, "sudo", "parted", "---pretend-input-tty",
+		_, stderr, err = shell.ExecuteWithStdin("yes" /*stdin*/, "parted", "---pretend-input-tty",
 			imageLoopDevice, "resizepart", strconv.Itoa(partitionNumber), end)
 		if err != nil {
 			return fmt.Errorf("failed to resizepart %s with parted:\n%v", partitionLoopDevice, stderr)
@@ -121,7 +121,7 @@ func shrinkFilesystems(imageLoopDevice string, verityHashPartition *imagecustomi
 // Get the start sectors of all partitions.
 // Ideally, we would use 'lsblk --output START' here. But that is only available in util-linux v2.38+.
 func getStartSectors(imageLoopDevice string, partitionCount int) (partitionStarts map[string]int, err error) {
-	stdout, stderr, err := shell.Execute("sudo", "fdisk", "--list", imageLoopDevice)
+	stdout, stderr, err := shell.Execute("fdisk", "--list", imageLoopDevice)
 	if err != nil {
 		return nil, fmt.Errorf("fdisk failed to list partitions:\n%v", stderr)
 	}