$ sudo blkid
# results
/dev/mmcblk1: PTUUID="3cedfd53" PTTYPE="dos"
/dev/mmcblk1p1: SEC_TYPE="msdos" LABEL="boot" UUID="BD14-46F4" TYPE="vfat" PARTUUID="3cedfd53-01"
/dev/mmcblk1p2: LABEL="rootfs" UUID="8e21052d-2fa6-4016-9d13-ef7bf1381ea5" TYPE="ext4" PARTUUID="3cedfd53-02"
/dev/mmcblk0: PTUUID="3cedfd53" PTTYPE="dos"
/dev/mmcblk0p1: SEC_TYPE="msdos" LABEL="boot" UUID="BA83-051F" TYPE="vfat" PARTUUID="3cedfd53-01"
/dev/mmcblk0p2: LABEL="rootfs" UUID="d6e728b2-1f2f-4727-af9c-933aa5023006" TYPE="ext4" PARTUUID="3cedfd53-02"