While all installation requirements are met, checkbox to install NetBoot component is greyed out.
Even if Distribution Point is correctly configured, below lines can be seen in pma_install.log:
Verify that below keys are present:
HKLM\SOFTWARE\Microsoft\SMS\Operations Management\SMS Server Role\SMS Distribution Point HKLM\SOFTWARE\Microsoft\SMS\DP\IsPXE
IsPXE value should be set to 1.