parted

root@debian:/home/user# parted /dev/nvme0n1
Model: SAMSUNG MZVLB512HBJQ-000H1 (nvme)
Disk /dev/nvme0n1: 512GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:

Number  Start  End     Size    Type     File system  Flags
 2      756kB  3431kB  2676kB  primary               esp




root@debian:/home/user# gdisk /dev/nvme0n1
GPT fdisk (gdisk) version 1.0.6

Partition table scan:
  MBR: MBR only
  BSD: not present
  APM: not present
  GPT: present

Found valid MBR and GPT. Which do you want to use?
 1 - MBR
 2 - GPT
 3 - Create blank GPT

Your answer: 2
Using GPT and creating fresh protective MBR.
Warning! Main partition table overlaps the first partition by 64 blocks!
You will need to delete this partition or resize it in another utility.

Command (? for help): p
Disk /dev/nvme0n1: 1000215216 sectors, 476.9 GiB
Model: SAMSUNG MZVLB512HBJQ-000H1
Sector size (logical/physical): 512/512 bytes
Disk identifier (GUID): F892941C-D5A7-4343-BCAE-28E0A52F74FF
Partition table holds up to 248 entries
Main partition table begins at sector 2 and ends at sector 63
First usable sector is 64, last usable sector is 6187040
Partitions will be aligned on 8-sector boundaries
Total free space is 1 sectors (512 bytes)

Number  Start (sector)    End (sector)  Size       Code  Name
   2            1476            6699   2.6 MiB     0700  ISOHybrid1








user@debian:~$ sudo gdisk /dev/nvme0n1
GPT fdisk (gdisk) version 1.0.6

Partition table scan:
  MBR: MBR only
  BSD: not present
  APM: not present
  GPT: present

Found valid MBR and GPT. Which do you want to use?
 1 - MBR
 2 - GPT
 3 - Create blank GPT

Your answer: 1

Command (? for help): p
Disk /dev/nvme0n1: 1000215216 sectors, 476.9 GiB
Model: SAMSUNG MZVLB512HBJQ-000H1
Sector size (logical/physical): 512/512 bytes
Disk identifier (GUID): 201E722A-6C00-4879-81B6-A468A663FD26
Partition table holds up to 128 entries
Main partition table begins at sector 2 and ends at sector 33
First usable sector is 34, last usable sector is 1000215182
Partitions will be aligned on 8-sector boundaries
Total free space is 1000209923 sectors (476.9 GiB)

Number  Start (sector)    End (sector)  Size       Code  Name
   2            1476            6701   2.6 MiB     EF00  EFI system partition







user@debian:~$ lsblk
NAME        MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
loop0         7:0    0   2.6G  1 loop /usr/lib/live/mount/rootfs/filesystem.squashfs
sda           8:0    1   3.7G  0 disk
├─sda1        8:1    1     3G  0 part /usr/lib/live/mount/medium
└─sda2        8:2    1   2.6M  0 part
nvme0n1     259:0    0 476.9G  0 disk
├─nvme0n1p1 259:3    0     3G  0 part
└─nvme0n1p2 259:4    0   2.6M  0 part






user@debian:~$ sudo nvme list
Node             SN                   Model                                    Namespace Usage                      Format           FW Rev
---------------- -------------------- ---------------------------------------- --------- -------------------------- ---------------- --------
/dev/nvme0n1     S4GLNF1MB58380       SAMSUNG MZVLB512HBJQ-000H1               1          38.57  GB / 512.11  GB    512   B +  0 B   HPS0NEXF







root@debian:/home/user# fdisk /dev/nvme0n1

Welcome to fdisk (util-linux 2.36.1).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.

The device contains 'iso9660' signature and it will be removed by a write command. See fdisk(8) man page and --wipe option for more details.

Command (m for help): p

Disk /dev/nvme0n1: 476.94 GiB, 512110190592 bytes, 1000215216 sectors
Disk model: SAMSUNG MZVLB512HBJQ-000H1
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x792fab23

Device         Boot Start     End Sectors  Size Id Type
/dev/nvme0n1p1 *        0 6187103 6187104    3G  0 Empty
/dev/nvme0n1p2       1476    6701    5226  2.6M ef EFI (FAT-12/16/32)

Command (m for help):