GPT/MBR

Create GPT-partition with a label on Linux

https://www.systutorials.com/making-gpt-partition-table-and-creating-partitions-with-parted-on-linux/

https://www.tecmint.com/change-modify-linux-disk-partition-label-names/

parted /dev/sdc

(parted) mklabel GPT

...
Warning: The existing disk label on /dev/sdc will be destroyed and all data on this disk will be lost. Do you want to continue?
Yes/No? Yes
...

(parted) mkpart primary 2048s 100%

(parted) p

(parted) q

mkfs.ext4 /dev/sdc1

e2label /dev/sdc1 DISK01

OR

tune2fs –L DISK01 /dev/sdc1

ls -lh /dev/disk/by-label/

...
lrwxrwxrwx 1 root root 10 Aug 16 17:37 DISK01 -> ../../sdc1
...

blkid

...
/dev/sdc1: LABEL="DISK01" UUID="db367e77-0b25-4854-b842-0b3042625bae" TYPE="ext4" PARTLABEL="primary" PARTUUID="a4000daf-4a37-46de-9dd8-17088243e980"
...

MBR to GPT

gdisk /dev/sda

w - Enter

y - Enter

...
OK; writing new GUID partition table (GPT) to /dev/sda.
The operation has completed successfully.
...

GPT to MBR

gdisk /dev/sda

r - Enter

g - Enter

r - Enter

w - Enter

Соответствие GPT физическим дискам

glabel status

Удалить GPT

sgdisk -z /dev/sda