why system update is rebuilding the initramfs of old kernel ?

Solution Verified - Updated -

Issue

  • During system updated we noticed that system is rebuilding the initramfs of all the old kernels as well.
  • Ideally it should make a initramfs of new kernel only.

Environment

  • Red Hat Enterprise Linux 7
  • microcode_ctl prior to 2.1-16.1.el7_3

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