How to build a custom kernel?

Solution Verified - Updated -

Issue

  • Even though Red Hat does not provide any support for the customized kernel, as a user, you want to rebuild a kernel (e.g. to test a change or apply a local fix until errata are released).
  • When you recompile the kernel, the size of each binary is a lot bigger than the one Red Hat provides. How can the binaries' size be reduced to sizes similar to those in the Red Hat shipped kernel binary RPM?

Environment

  • Red Hat Enterprise Linux 4
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6

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