Why do I see "cannot exit boot services" when trying to install RHEL on iSCSI discs when UEFI is used?

Solution Unverified - Updated -

Issue

  • Why do I see "cannot exit boot services" when trying to install Red Hat Enterprise Linux (RHEL) on iSCSI discs when UEFI is used?
  • Why do I get the following error, trying to install RHEL on iSCSI discs when UEFI is used?
Trying to allocate 892 pages for VMLINUZ
[Linux-EFI, setup=0x11c9, size=0x37b500]
   [Initrd, addr=0x712e8000, size=0x12b7938]
cannot exit boot services

Environment

  • Red Hat Enterprise Linux (RHEL) 6
  • Red Hat Enterprise Linux minor release <=4
  • iSCSI
  • UEFI

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