[ido66667@b550aoruselite ~]$ inxi -Mza
Machine:   Type: Desktop Mobo: Gigabyte model: B550 AORUS ELITE v: x.x serial: <filter> UEFI: American Megatrends v: F2a
           date: 06/16/2020
[ido66667@b550aoruselite ~]$ test -d /sys/firmware/efi && echo efi || echo bios
efi
[ido66667@b550aoruselite ~]$ sudo parted -l
Model: GIGABYTE GP-GSM2NE3100TNTD (nvme)
Disk /dev/nvme0n1: 1024GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:

Number  Start   End     Size    File system     Name                  Flags
 1      1049kB  316MB   315MB   fat32                                 boot, esp
 2      316MB   11.1GB  10.7GB  linux-swap(v1)                        swap
 3      11.1GB  97.0GB  85.9GB  ext4
 4      97.0GB  569GB   472GB   ext4
 5      569GB   1024GB  455GB   ntfs            Basic data partition  msftdata


[ido66667@b550aoruselite ~]$ sudo efibootmgr -v
EFI variables are not supported on this system.