Comment out the line with rofs for f32tests.oby and comment out the variant bit to allow to build e32 & f32 tests for kernelhwsrv.
# component name "EStart"
component base_f32_estart
source \sf\os\kernelhwsrv\userlibandfileserver\fileserver\estart
binary \sf\os\kernelhwsrv\userlibandfileserver\fileserver\estart all
exports \sf\os\kernelhwsrv\userlibandfileserver\fileserver\estart
notes_source \component_defs\release.src
ipr E