for reference this works: 
Disk /dev/mmcblk1: 238.3 GiB, 255869321216 bytes, 499744768 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
Disklabel type: dos
Disk identifier: 0xd2b7a948

Device         Boot     Start       End   Sectors   Size Id Type
/dev/mmcblk1p1           2048    411647    409600   200M  c W95 FAT32 (LBA)
/dev/mmcblk1p2         411648 482967551 482555904 230.1G 83 Linux
/dev/mmcblk1p3      482967552 499744767  16777216     8G 82 Linux swap / Solaris