diff --git a/init/do_mounts.c b/init/do_mounts.c
index 762b534978d9..8a72c1fe17c8 100644
--- a/init/do_mounts.c
+++ b/init/do_mounts.c
@@ -650,6 +650,50 @@ void __init prepare_namespace(void)
 }
 
 static bool is_tmpfs;
+#ifdef CONFIG_INITRAMFS_MOUNT
+
+/*
+ * Give systems running from the initramfs and making use of pivot_root a
+ * proper mount so it can be umounted during pivot_root.
+ */
+int __init prepare_mount_rootfs(void)
+{
+	char *rootfs = "ramfs";
+
+	if (is_tmpfs)
+		rootfs = "tmpfs";
+
+	init_mkdir("/root", 0700);
+	return do_mount_root(rootfs, rootfs,
+				root_mountflags & ~MS_RDONLY,
+				root_mount_data);
+}
+
+/*
+ * Revert to previous mount by chdir to '/' and unmounting the second
+ * mount.
+ */
+void __init revert_mount_rootfs(void)
+{
+	init_chdir("/");
+	init_umount(".", MNT_DETACH);
+}
+
+/*
+ * Change root to the new rootfs that mounted in prepare_mount_rootfs()
+ * if cpio is unpacked successfully and 'ramdisk_execute_command' exist.
+ */
+void __init finish_mount_rootfs(void)
+{
+	init_mount(".", "/", NULL, MS_MOVE, NULL);
+	if (likely(ramdisk_exec_exist()))
+		init_chroot(".");
+	else
+		revert_mount_rootfs();
+}
+
+#define rootfs_init_fs_context ramfs_init_fs_context
+#else
 static int rootfs_init_fs_context(struct fs_context *fc)
 {
 	if (IS_ENABLED(CONFIG_TMPFS) && is_tmpfs)
@@ -657,6 +701,7 @@ static int rootfs_init_fs_context(struct fs_context *fc)
 
 	return ramfs_init_fs_context(fc);
 }
+#endif
 
 struct file_system_type rootfs_fs_type = {
 	.name		= "rootfs",
diff --git a/init/do_mounts.h b/init/do_mounts.h
index 7a29ac3e427b..ae4ab306caa9 100644
--- a/init/do_mounts.h
+++ b/init/do_mounts.h
@@ -10,9 +10,24 @@
 #include <linux/root_dev.h>
 #include <linux/init_syscalls.h>
 
+extern int root_mountflags;
+
 void  mount_block_root(char *name, int flags);
 void  mount_root(void);
-extern int root_mountflags;
+
+#ifdef CONFIG_INITRAMFS_MOUNT
+
+int  prepare_mount_rootfs(void);
+void finish_mount_rootfs(void);
+void revert_mount_rootfs(void);
+
+#else
+
+static inline int  prepare_mount_rootfs(void) { return 0; }
+static inline void finish_mount_rootfs(void) { }
+static inline void revert_mount_rootfs(void) { }
+
+#endif
 
 static inline __init int create_dev(char *name, dev_t dev)
 {
diff --git a/init/initramfs.c b/init/initramfs.c
index 2f3d96dc3db6..881fb8ea4352 100644
--- a/init/initramfs.c
+++ b/init/initramfs.c
@@ -17,6 +17,8 @@
 #include <linux/init_syscalls.h>
 #include <linux/umh.h>
 
+#include "do_mounts.h"
+
 static ssize_t __init xwrite(struct file *file, const char *p, size_t count,
 		loff_t *pos)
 {
@@ -671,7 +673,12 @@ static void __init populate_initrd_image(char *err)
 static void __init do_populate_rootfs(void *unused, async_cookie_t cookie)
 {
 	/* Load the built in initramfs */
-	char *err = unpack_to_rootfs(__initramfs_start, __initramfs_size);
+	char *err;
+
+	if (prepare_mount_rootfs())
+		panic("Failed to mount rootfs\n");
+
+	err = unpack_to_rootfs(__initramfs_start, __initramfs_size);
 	if (err)
 		panic_show_mem("%s", err); /* Failed to decompress INTERNAL initramfs */
 
@@ -685,11 +692,14 @@ static void __init do_populate_rootfs(void *unused, async_cookie_t cookie)
 
 	err = unpack_to_rootfs((char *)initrd_start, initrd_end - initrd_start);
 	if (err) {
+		revert_mount_rootfs();
 #ifdef CONFIG_BLK_DEV_RAM
 		populate_initrd_image(err);
 #else
 		printk(KERN_EMERG "Initramfs unpacking failed: %s\n", err);
 #endif
+	} else {
+		finish_mount_rootfs();
 	}
 
 done:
diff --git a/usr/Kconfig b/usr/Kconfig
index 8bbcf699fe3b..af2aeeef8635 100644
--- a/usr/Kconfig
+++ b/usr/Kconfig
@@ -52,6 +52,16 @@ config INITRAMFS_ROOT_GID
 
 	  If you are not sure, leave it set to "0".
 
+config INITRAMFS_MOUNT
+       bool "Create second mount to make pivot_root() supported"
+       default y
+       help
+         Before unpacking cpio, create a second mount and make it become
+         the root filesystem. Therefore, initramfs will be supported by
+         pivot_root().
+
+         If container platforms is used with initramfs, say Y.
+
 config RD_GZIP
 	bool "Support initial ramdisk/ramfs compressed using gzip"
 	default y
