Bug#746396: grub-common: Add support for NVMe devices in grub-mkdevicemap

[Dimitri John Ledkov]

Package: grub-common
Version: 2.02~beta2-9
Severity: wishlist
Tags: patch

Dear Maintainer,

Whilst legacy grub-mkdevicemap is still in use, I have noticed that it
doesn't have support for NVMe devices. I've added the device pattern,
for grub-mkdevicemap to probe NVMe devices following other similar
devices. I've tested it using qemu-system, booted with UEFI edk2
firmware and an NVMe device, here are sample instructions:

  cd `mktemp -d`
  cp /usr/share/ovmf/OVMF.fd .
  qemu-system-x86_64 -pflash OVMF.fd -m 1024 -drive file=nvme.img,if=none,id=D22 -device nvme,drive=D22,serial=1234 --enable-kvm -ctrl-grab -cdrom trusty-desktop-amd64.iso

With the attached patch grub-mkdevicemap produces result for the nvme
drive. Patch was created on top of locally generated
`patched-experimental` branch.

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Regards,

Dimitri.