I can't mount it as root, it tells me that I'm not root. So I try to mount it using opensh...

output of fdisk:

# /sbin/sfdisk -l

Disk /dev/mmcblk0: 485120 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 16 288511 288496 9231872 c W95 FAT32 (LBA)
/dev/mmcblk0p2 288512 419583 131072 4194304 83 Linux
/dev/mmcblk0p3 419584 485119 65536 2097152 83 Linux
/dev/mmcblk0p4 0 - 0 0 0 Empty

Disk /dev/dm-0: 0 cylinders, 0 heads, 0 sectors/track

sfdisk: ERROR: sector 0 does not have an msdos signature
/dev/dm-0: unrecognized partition table type
No partitions found