Why does Red Hat Enterprise Linux create corrupted dracut every time with errors "Cannot load dracut module xxx dependencies failed"?

Issue

• Every time, new kernel is installed or dracut image is created, it created a corrupted one with the errors as follows.

[root@test ~]# grep -i fail 80-dracut.out
W: Cannot load dracut module "plymouth", dependencies failed.
W: Cannot load dracut module "crypt", dependencies failed.
W: Cannot load dracut module "dmraid", dependencies failed.
W: Dependency dmsquash-live failed.
W: Cannot load dracut module "dmsquash-live", dependencies failed.
W: Cannot load dracut module "lvm", dependencies failed.
W: Cannot load dracut module "mdraid", dependencies failed.
W: Dependency fcoe failed.
W: Cannot load dracut module "fcoe", dependencies failed.
W: Cannot load dracut module "iscsi", dependencies failed.
W: Dependency nfs failed.
W: Cannot load dracut module "nfs", dependencies failed.
W: Cannot load dracut module "insmodpost", dependencies failed.
W: Cannot load dracut module "base", dependencies failed.