Hi, I'm new to machines that absolutely require EFI booting. I have a machine that only has NVMe devices, and I understand it needs to be installed in EFI mode to boot.
I'm trying to install by PXE. I've done this hundreds of times with a legacy BIOS, but it's not working for me in EFI mode and I feel like the problem is with my tftp setup or the netboot files within. Can anyone see what I'm doing wrong here? I've prepped my netboot server as covered here: https://wiki.debian.org/PXEBootInstall Specifically where it mentions EFI I've made the changes it suggests: If you are booting with UEFI, you should link grub and grubx64.efi into the root of your tftp directory: # cd /srv/tftp # ln -s debian-installer/amd64/grubx64.efi . # ln -s debian-installer/amd64/grub . You may also have to edit grub/grub.cfg in order to set your serial console, if needed (I replaced the section about the graphical terminal) For that bit I just shoved: serial --speed=115200 --unit=1 --word=8 --parity=no --stop=1 terminal_input console serial terminal_output console serial into the grub/grub.cfg file just after the section at the top about setting gfxmode. Also each of the "linux" lines in the menuentry sections I changed them from: linux /debian-installer/amd64/linux vga=788 --- quiet to: linux /debian-installer/amd64/linux --- console=ttyS1,115200n8r console=tty1 because I am doing this on a serial console. The full content of this grub/grub.cfg file is available here: https://paste.debian.net/1173533/ When I trigger a PXE boot by telling the machine to give me a boot menu, then selecting its eth0, I see it get an address from DHCP and my tftpd logs show it request the correct files: Nov 20 00:29:48 admin in.tftpd[19654]: RRQ from 192.168.80.30 filename debian-installer/amd64/bootnetx64.efi Nov 20 00:29:49 admin in.tftpd[19654]: tftp: client does not accept options Nov 20 00:29:49 admin in.tftpd[19655]: RRQ from 192.168.80.30 filename debian-installer/amd64/bootnetx64.efi Nov 20 00:29:50 admin in.tftpd[19656]: RRQ from 192.168.80.30 filename debian-installer/amd64/grubx64.efi On the console of the machine I see it say that it's downloaded an "NBP" then the screen shows: Welcome to GRUB! then after a pause it clears and I just have a grub> prompt where I would normally have expected the installer menu. Therefore I believe it has correctly downloaded the files it needs, I'm looking at the running grub from the tftp server, yet something has gone wrong with the grub configuration. I have tried both the buster netboot.tar.gz and the daily d-i build and get the same behaviour with both. I've also read the relevant part of the release notes: https://www.debian.org/releases/buster/amd64/ch04s05.en.html and they don't tell me anything different than what I've already done, either. Any ideas? Cheers, Andy