ubuntu@ubuntu:/mnt/mygf$ lsblk
NAME         MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda            8:0    1   7.3G  0 disk
├─sda1         8:1    1     3G  0 part /cdrom
└─sda2         8:2    1  78.7M  0 part
loop0          7:0    0 962.1M  1 loop
mmcblk0rpmb  179:24   0     4M  0 disk
mmcblk0boot0 179:8    0     4M  1 disk
mmcblk0boot1 179:16   0     4M  1 disk
mmcblk0      179:0    0  29.1G  0 disk
├─mmcblk0p1  179:1    0   260M  0 part
├─mmcblk0p2  179:2    0   128M  0 part
├─mmcblk0p3  179:3    0  21.6G  0 part
└─mmcblk0p4  179:4    0   7.2G  0 part