problem update kernel

[ec2-user@ip-172-31-27-61 ~]$ sudo yum update
Loaded plugins: priorities, update-motd, upgrade-helper
amzn-main/latest                                                                                               | 2.1 kB     00:00
amzn-updates/latest                                                                                            | 2.3 kB     00:00
954 packages excluded due to repository priority protections
Resolving Dependencies
--> Running transaction check
---> Package kernel.x86_64 0:4.4.14-24.50.amzn1 will be installed
--> Finished Dependency Resolution
--> Running transaction check
---> Package kernel.x86_64 0:4.4.8-20.46.amzn1 will be erased
--> Finished Dependency Resolution

Dependencies Resolved

======================================================================================================================================
 Package                    Arch                       Version                                 Repository                        Size
======================================================================================================================================
Installing:
 kernel                     x86_64                     4.4.14-24.50.amzn1                      amzn-updates                      15 M
Removing:
 kernel                     x86_64                     4.4.8-20.46.amzn1                       installed                         64 M

Transaction Summary
======================================================================================================================================
Install  1 Package
Remove   1 Package

Total download size: 15 M
Is this ok [y/d/N]: y
Downloading packages:
kernel-4.4.14-24.50.amzn1.x86_64.rpm                                                                           |  15 MB     00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : kernel-4.4.14-24.50.amzn1.x86_64                                                                                   1/2
  Cleanup    : kernel-4.4.8-20.46.amzn1.x86_64                                                                                    2/2
warning: file /lib/modules/4.4.8-20.46.amzn1.x86_64/modules.order: remove failed: No such file or directory
warning: file /lib/modules/4.4.8-20.46.amzn1.x86_64/modules.networking: remove failed: No such file or directory
warning: file /lib/modules/4.4.8-20.46.amzn1.x86_64/modules.modesetting: remove failed: No such file or directory
warning: file /lib/modules/4.4.8-20.46.amzn1.x86_64/modules.drm: remove failed: No such file or directory
warning: file /lib/modules/4.4.8-20.46.amzn1.x86_64/modules.builtin: remove failed: No such file or directory
warning: file /lib/modules/4.4.8-20.46.amzn1.x86_64/modules.block: remove failed: No such file or directory
E: Failed to install switch_root
  Verifying  : kernel-4.4.14-24.50.amzn1.x86_64                                                                                   1/2
  Verifying  : kernel-4.4.8-20.46.amzn1.x86_64                                                                                    2/2

Removed:
  kernel.x86_64 0:4.4.8-20.46.amzn1

Installed:
  kernel.x86_64 0:4.4.14-24.50.amzn1

Complete!