Comment 2 for bug 1904263

Likely the same as https://bugs.launchpad.net/ubuntu/+source/grub2-signed/+bug/1872212.

Note that:
1) drive uses gpt, not mbr
2) EFI partition is not logical partition AFAICS
3) there are no dump files as described in $ root parted /dev/nvme1n1
GNU Parted 3.3
Using /dev/nvme1n1
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) p
Model: WDC WDS100T2B0C-00PXH0 (nvme)
Disk /dev/nvme1n1: 1000GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:

Number Start End Size File system Name Flags
 1 1049kB 106MB 105MB fat32 EFI system partition boot, esp
 2 106MB 123MB 16.8MB Microsoft reserved partition msftres
 3 123MB 1000GB 1000GB ntfs Basic data partition msftdata
 4 1000GB 1000GB 530MB ntfs hidden, diag

```
$ root parted /dev/nvme1n1
GNU Parted 3.3
Using /dev/nvme1n1
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) p
Model: WDC WDS100T2B0C-00PXH0 (nvme)
Disk /dev/nvme1n1: 1000GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:

Number Start End Size File system Name Flags
 1 1049kB 106MB 105MB fat32 EFI system partition boot, esp
 2 106MB 123MB 16.8MB Microsoft reserved partition msftres
 3 123MB 1000GB 1000GB ntfs Basic data partition msftdata
 4 1000GB 1000GB 530MB ntfs hidden, diag
```