Soldato
You should be using something like -I still cant get it to mount
Code:
mount /dev/sdr1/ /mnt
As mentioned, it might be a different partition ('sda1' gets mentions on Xpenology forums), so it might need a bit of trial and error - can you post a list of your partitions?
For reference, if you're booting from an imaged USB stick then DSM mounts it under the /volume*/ directory.