A mate installed openpli onto my dm800 clone.

For the life of me I cant get any devices mounted (ext2, ntfs, cifs). Nothing works that I try.

When i mount an ext2 usb key it simply says:

root@dm800 ~ # mount /dev/sda1 /mnt/usb
mount: mounting /dev/sda1 on /mnt/usb failed: Invalid argument

I've got the relevant kernel modules installed too for any file system I try and mount.