Le jeudi 30 janvier 2020 06:30:04 UTC+1, David Christensen a écrit : > On 2020-01-29 10:51, David Christensen wrote: > > root@d-i:/# grub-install --target x86_64-efi-signed > > grub-install: error: /usr/lib/grub/x86_64-efi-signed/modinfo.sh > > doesn't exist. Please specify --target or --directory. > > I was able to install grub for x86_64-efi: > > root@d-i:/# grub-install --target x86_64-efi > Installing for x86_64-efi platform. > Installation finished. No error reported. > > > But, the drive still will not boot in the PowerEdge T30, UEFI, with or > without Secure Boot, or in the DQ67SW, UEFI without Secure Boot. > > > Is anybody booting and running Buster from a GPT disk using UEFI? With > or without Secure Boot? > > > David
In your case (USB removable device), perhaps (not sure) you will succeed with the --removable or --force-extra-removable options of grub-install. There is a similar option in the expert mode of installation of Debian at the grub installation step. I have already run Debian in UEFI (non Legacy mode), GPT and Secure Boot with no problem (Secure Boot mode: briefly, I am using Insecure Mode).
