Hello, I have a question about how GRUB handles prompting for a password for encrypted disks using LVM. I am using Debian Testing and I have GRUB 2.12 installed, but this was present on GRUB 2.06 as well.
So I have 2 encrypted logical volumes. One is for /boot and the other is for / I have keyfiles setup in the initramfs for these volumes so that the same prompts don't get shown after GRUB has handled them. When I boot, I get the first prompt for /boot, after which I get a second prompt for /, but the interesting thing about the second one is that if I just press enter without writing anything, it then shows me the menu to choose what I want to boot into. This doesn't happen with the first prompt for /boot. I haven't setup keyfiles for GRUB, but according to the documentation, if I had, it shouldn't have shown a prompt in the first place. What I'm wondering is whether it reuses my input from the previous prompt. If I try to decrypt the disk manually using cryptsetup all prompts work properly and I always have to input the proper password to be able to unlock the device.
