BusyBox v1.10.2 (Debian 3:1.10.2.legal-1osso30+0m5) built-in shell (ash) Enter 'help' for a list of built-in commands. ~ $ sudo gainroot Root shell enabled BusyBox v1.10.2 (Debian 3:1.10.2.legal-1osso30+0m5) built-in shell (ash) Enter 'help' for a list of built-in commands. /home/user # sfdisk -l /dev/mmcblk0 Disk /dev/mmcblk0: 977024 cylinders, 4 heads, 16 sectors/track Units = cylinders of 32768 bytes, blocks of 1024 bytes, counting from 0 Device Boot Start End #cyls #blocks Id System /dev/mmcblk0p1 1 799999 799999 25599968 c W95 FAT32 (LBA) /dev/mmcblk0p2 884865 950400 65536 2097152 83 Linux /dev/mmcblk0p3 950401 974976 24576 786432 82 Linux swap / Solaris /dev/mmcblk0p4 800000 884864 84865 2715680 5 Extended /home/user #