View partition table format

1. parted command

2. fdisk -l command

GPT

[[email protected] ~]# parted
...
Model: Virtio Block Device (virtblk)
Disk /dev/vda: 2858GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags: pmbr_boot

Number  Start   End     Size    File system  Name  Flags
 1      1049kB  2097kB  1049kB                     bios_grub
 2      2097kB  264MB   262MB   ext4
 3      264MB   2858GB  2858GB                     lvm

(parted)
-----------------------------

[[email protected] ~]# fdisk -l
...

Disk /dev/vda: 2858.3 GB, 2858300735488 bytes, 5582618624 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: gpt
...

MBR

[[email protected] ~]# parted
...
(parted) print all
Model: Virtio Block Device (virtblk)
Disk /dev/vda: 53.7GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

...

-------------------------------

[[email protected] ~]# fdisk -l

...
Disk /dev/loop0: 10.1 GB, 10130292736 bytes, 19785728 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x426eea3b

...