cat /proc/partitions
major minor #blocks name

7 0 13545 loop0
7 1 43691 loop1
7 2 27059 loop2
7 3 47849 loop3
7 4 55125 loop4
7 5 40572 loop5
7 6 11466 loop6
7 7 56165 loop7
179 0 3817472 mmcblk0
179 1 20 mmcblk0p1
179 2 300 mmcblk0p2
179 3 133120 mmcblk0p3
179 4 1 mmcblk0p4
179 5 12288 mmcblk0p5
179 6 4096 mmcblk0p6
179 7 4096 mmcblk0p7
179 8 3072 mmcblk0p8
179 9 3072 mmcblk0p9
179 10 3072 mmcblk0p10
179 11 4096 mmcblk0p11
179 12 8192 mmcblk0p12
179 13 20480 mmcblk0p13
179 14 4096 mmcblk0p14
179 15 196608 mmcblk0p15
179 16 81920 mmcblk0p16
179 17 1048576 mmcblk0p17
179 18 1179648 mmcblk0p18
179 19 1105920 mmcblk0p19
179 32 3872256 mmcblk1
179 33 3868160 mmcblk1p1
254 0 13545 dm-0
254 1 43690 dm-1
254 2 27058 dm-2
254 3 47848 dm-3
254 4 55125 dm-4
254 5 40572 dm-5
254 6 11466 dm-6
254 7 56164 dm-7
7 8 15624 loop8
254 8 15624 dm-8
7 9 65552 loop9
254 9 65551 dm-9
7 10 40572 loop10
254 10 40572 dm-10