>From: "sgrifell@arrakis.es" <sgrifell@arrakis.es>
>
>mount /dev/rsd0c /mnt : Block device required  

You're trying to mount a raw character device as a block filesystem.
You need to specify the block device when mounting it:
	mount /dev/sd0c /mnt

Cheers,
entropy

--
entropy -- it's not just a good idea, it's the second law.