Attention: David Hello,
I wish to add some info that might be of interest to you: grub> ls (hd0,gpt1)/ efi/ Note: (hd0,gpt1) contains ESP (EFI System Partition) grub> ls (hd0,gpt2)/ lost+found/ efi/ config-4.19.0.17-amd64 vmlinuz-4.19.0.17-amd64 grub/ System.map-4.19.0.17-amd64 initrd.img-4.19.0.17-amd64 Note: (hd0,gpt2) is the /boot partition The version of the kernel in Debian Testing is 5.10.0-7-amd64 whereas that of Debian Buster is 4.19.0.17-amd64. I'm surprised that even though installation of Debian Testing was successful, the version of config-, vmlinuz- System.map and initrd.img- in grub is of the older Debian Buster. Do you think the problem of the missing GRUB menu can be fixed if the older version of config-, vmlinuz- System.map and initrd.img- can replaced with those of Debian Testing? What do you think? Best regards
