Mounting samba shares in Ubuntu on ps3

Somehow I could only get my samba share (running from an NSLU2) mounted on ps3 Ubuntu 8.10 by adding the ‘nounix’ option. Before that I kept getting error 20 or error 6. The ‘nounix’ option isn’t in the man pages, I didn’t need to use this on my laptop (also running 8.10), and both smbfs versions are the same on both the laptop and ps3, so go figure…