First, you need to add a serial port.

Then get a command shell on the Lude.

 mkdir -p /home/opt/tmp
 mount -o bind /home/opt /opt
 mount -o bind /home/opt/tmp /tmp

Make sure that /home/opt is a share in the web interface, and that it is NFS exported, and mount the lude onto your development box:

 mount -t nfs -o rw,soft,nolock <ip>:/home/opt /mnt

 export LD_LIBRARY_PATH=/opt/lib

Copy in the dyoung-special libc and libgcc_s

Copy in the contents of the NSLU2? dropbear package, and run the postinst manually.

Start dropbear running.

 mknod /dev/ptmx c 5 2
 chmod 666 /dev/ptmx

Give root a password

 passwd

You should now be able to ssh into the lude.