Per https://www.gnu.org/software/grub/manual/grub/html_node/Measured-Boot.html
it is recommended that the tpm module be built into core.img in order to > avoid a potential gap in measurement between core.img being loaded and the > tpm module being loaded In building grub 2.04 (for Ubuntu 18.04 in UEFI mode), is the tpm module built into core.img by default, or is there explicit configuration necessary to enable it? Regards, Hanson == More Details == What I did: git clone https://git.savannah.gnu.org/git/grub.git cd grub git checkout -b grub-2.04 grub-2.04 ./bootstrap ./configure --prefix=/usr sudo make install sudo grub-install Installing for x86_64-efi platform. > Installation finished. No error reported. After rebooting, however, tpm2_pcrread shows PCR-8 and 9 as zeros, indicating no measurement by grub 2.04. What am I missing?
