No UEFI Boot on 2015 or older UEFI capable systems

Issue:  No UEFI Boot on 2015 or older UEFI capable systems

Status:  Confirmed and Resolved with Workaround

Distributions Affected: Linspire, Xandros, Red Hat Engerprise Linux, Oracle Linux and SUSE Enterprise Linux

Issue:

Customer contact reported that their Lenovo Thinkpad T450 system (8gb of RAM and 256 gb SSD) stopped booting in UEFI mode with the release of Linspire 10 SP2.  Customer sent us the system for repair and we were able to confirm the situation.  We tested with various Linux distributions and Windows 10 and while Windows 10 did not share that same issue we could not get any of the Linux distributions to boot.  We reset the BIOS defaults and were able to boot RHEL but were not able to get the various other distributions to boot whether we reset the BIOS to default or not this condition was also present if Secure Boot was disabled or enabled.

Workaround

Disable UEFI and secure boot and install the OS using the legacy CSM or Install the OS and install an alternative boot manager such as rEFInd.