Привожу вывод команды blkid:
[root@comp-c2d ~]# blkid
/dev/sdb1: UUID="cad833e8-7227-4b80-b613-ed4a23da209f" UUID_SUB="53221a3e-5450-42ee-aa13-d5b4897e2985" TYPE="btrfs" PARTUUID="000d48f0-01"
/dev/sda1: UUID="bece2478-aa53-4af5-bf8c-8215de66f523" TYPE="ext4" PARTUUID="0006a196-01"
/dev/sda2: UUID="ba4fad8a-0f82-4a8c-a70c-bcdbe79bf15f" TYPE="ext4" PARTUUID="0006a196-02"
[root@comp-c2d ~]#