Improve error message when pivot_root fails

PiperOrigin-RevId: 301949722

2 files changed, 2 insertions, 2 deletions

diff --git a/runsc/cmd/chroot.go b/runsc/cmd/chroot.go
index b5a0ce17d..189244765 100644
--- a/runsc/cmd/chroot.go
+++ b/runsc/cmd/chroot.go
@@ -50,7 +50,7 @@ func pivotRoot(root string) error {
 	// new_root, so after umounting the old_root, we will see only
 	// the new_root in "/".
 	if err := syscall.PivotRoot(".", "."); err != nil {
-		return fmt.Errorf("error changing root filesystem: %v", err)
+		return fmt.Errorf("pivot_root failed, make sure that the root mount has a parent: %v", err)
 	}
 
 	if err := syscall.Unmount(".", syscall.MNT_DETACH); err != nil {
diff --git a/runsc/cmd/gofer.go b/runsc/cmd/gofer.go
index 6e06f3c0f..02e5af3d3 100644
--- a/runsc/cmd/gofer.go
+++ b/runsc/cmd/gofer.go
@@ -335,7 +335,7 @@ func setupRootFS(spec *specs.Spec, conf *boot.Config) error {
 
 	if !conf.TestOnlyAllowRunAsCurrentUserWithoutChroot {
 		if err := pivotRoot("/proc"); err != nil {
-			Fatalf("faild to change the root file system: %v", err)
+			Fatalf("failed to change the root file system: %v", err)
 		}
 		if err := os.Chdir("/"); err != nil {
 			Fatalf("failed to change working directory")