$ export PATH=/data/local/bin:$PATH
$ls -l /dev/block
brw------- root     root     254,  21 2011-03-17 02:27 dm-21
brw-rw---- root     root       7,  21 2011-03-17 02:27 loop21
brw------- root     root     254,  20 2011-03-17 02:27 dm-20
brw-rw---- root     root       7,  20 2011-03-17 02:27 loop20
brw------- root     root     254,  19 2011-03-17 02:27 dm-19
brw-rw---- root     root       7,  19 2011-03-17 02:27 loop19
brw------- root     root     254,  18 2011-03-17 02:27 dm-18
brw-rw---- root     root       7,  18 2011-03-17 02:27 loop18
brw------- root     root     254,  17 2011-03-17 02:27 dm-17
brw-rw---- root     root       7,  17 2011-03-17 02:27 loop17
brw------- root     root     254,  16 2011-03-17 02:27 dm-16
brw-rw---- root     root       7,  16 2011-03-17 02:27 loop16
brw------- root     root     254,  15 2011-03-17 02:27 dm-15
brw-rw---- root     root       7,  15 2011-03-17 02:27 loop15
brw------- root     root     254,  14 2011-03-17 02:27 dm-14
brw-rw---- root     root       7,  14 2011-03-17 02:27 loop14
brw------- root     root     254,  13 2011-03-17 02:27 dm-13
brw-rw---- root     root       7,  13 2011-03-17 02:27 loop13
brw------- root     root     254,  12 2011-03-17 02:27 dm-12
brw-rw---- root     root       7,  12 2011-03-17 02:27 loop12
brw------- root     root     254,  11 2011-03-17 02:27 dm-11
brw-rw---- root     root       7,  11 2011-03-17 02:27 loop11
brw------- root     root     254,  10 2011-03-17 02:27 dm-10
brw-rw---- root     root       7,  10 2011-03-17 02:27 loop10
brw------- root     root     254,   9 2011-03-17 02:27 dm-9
brw-rw---- root     root       7,   9 2011-03-17 02:27 loop9
brw------- root     root     254,   8 2011-03-17 02:27 dm-8
brw-rw---- root     root       7,   8 2011-03-17 02:27 loop8
brw------- root     root     254,   7 2011-03-17 02:27 dm-7
brw------- root     root     254,   6 2011-03-17 02:27 dm-6
brw------- root     root     254,   5 2011-03-17 02:27 dm-5
brw------- root     root     254,   4 2011-03-17 02:27 dm-4
brw------- root     root     254,   3 2011-03-17 02:27 dm-3
brw------- root     root     254,   2 2011-03-17 02:27 dm-2
brw------- root     root     254,   1 2011-03-17 02:27 dm-1
brw------- root     root     254,   0 2011-03-17 02:27 dm-0
drwxr-xr-x root     root                        2011-03-17 02:26 vold
brw------- root     root     179, 129 2011-03-17 02:26 mmcblk2p1
brw------- root     root     179, 128 2011-03-17 02:26 mmcblk2
brw------- root     root     179, 208 2011-03-17 02:26 mmcblk3p16
brw-rw-r-- root     system   179, 207 2011-03-17 02:26 mmcblk3p15
brw-rw-rw- root     root     179, 206 2011-03-17 02:26 mmcblk3p14
brw------- root     root     179, 205 2011-03-17 02:26 mmcblk3p13
brw-rw-r-- root     system   179, 204 2011-03-17 02:26 mmcblk3p12
brw------- root     root     179, 203 2011-03-17 02:26 mmcblk3p11
brw-r--r-- root     root     179, 202 2011-03-17 02:26 mmcblk3p10
brw-rw-rw- root     root     179, 201 2011-03-17 02:26 mmcblk3p9
brw------- root     root     179, 200 2011-03-17 02:26 mmcblk3p8
brw------- root     root     179, 199 2011-03-17 02:26 mmcblk3p7
brw------- root     root     179, 198 2011-03-17 02:26 mmcblk3p6
brw-rw-r-- root     system   179, 197 2011-03-17 02:26 mmcblk3p5
brw------- root     root     179, 196 2011-03-17 02:26 mmcblk3p4
brw------- root     root     179, 195 2011-03-17 02:26 mmcblk3p3
brw------- root     root     179, 194 2011-03-17 02:26 mmcblk3p2
brw------- root     root     179, 193 2011-03-17 02:26 mmcblk3p1
brw------- root     root     179, 192 2011-03-17 02:26 mmcblk3
brw------- root     root      43,  15 2011-03-17 02:26 nbd15
brw------- root     root      43,  14 2011-03-17 02:26 nbd14
brw------- root     root      43,  13 2011-03-17 02:26 nbd13
brw------- root     root      43,  12 2011-03-17 02:26 nbd12
brw------- root     root      43,  11 2011-03-17 02:26 nbd11
brw------- root     root      43,  10 2011-03-17 02:26 nbd10
brw------- root     root      43,   9 2011-03-17 02:26 nbd9
brw------- root     root      43,   8 2011-03-17 02:26 nbd8
brw------- root     root      43,   7 2011-03-17 02:26 nbd7
brw------- root     root      43,   6 2011-03-17 02:26 nbd6
brw------- root     root      43,   5 2011-03-17 02:26 nbd5
brw------- root     root      43,   4 2011-03-17 02:26 nbd4
brw------- root     root      43,   3 2011-03-17 02:26 nbd3
brw------- root     root      43,   2 2011-03-17 02:26 nbd2
brw------- root     root      43,   1 2011-03-17 02:26 nbd1
brw------- root     root      43,   0 2011-03-17 02:26 nbd0
brw------- root     root       7,   7 2011-03-17 02:26 loop7
brw------- root     root       7,   6 2011-03-17 02:26 loop6
brw------- root     root       7,   5 2011-03-17 02:26 loop5
brw------- root     root       7,   4 2011-03-17 02:26 loop4
brw------- root     root       7,   3 2011-03-17 02:26 loop3
brw------- root     root       7,   2 2011-03-17 02:26 loop2
brw------- root     root       7,   1 2011-03-17 02:26 loop1
brw------- root     root       7,   0 2011-03-17 02:26 loop0
$