libguestfs appliance weirdness

gistfile1.txt

vasi@inchon:~/Downloads$ LIBGUESTFS_PATH=$PWD/rwmj-appliance guestfish -a ubuntu-10.04.4-alternate-amd64.iso 

Welcome to guestfish, the libguestfs filesystem interactive shell for
editing virtual machine filesystems.

Type: 'help' for help on commands
      'man' to read the manual
      'quit' to quit the shell

><fs> run
 100% ⟦▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓⟧ --:--
><fs> list-filesystems 
/dev/vda: iso9660
><fs> mount-vfs defaults iso9660 /dev/sda /
><fs> ll /
total 201
dr-xr-xr-x 10 root root   2048 Feb 14  2012 .
drwxr-xr-x 24  500  501   4096 May  8 20:50 ..
dr-xr-xr-x  2 root root   2048 Feb 14  2012 .disk
-r--r--r--  1 root root    230 Feb 14  2012 README.diskdefines
-r-xr-xr-x  1 root root   1115 Apr 24  2010 cdromupgrade
dr-xr-xr-x  3 root root   2048 Feb 14  2012 dists
dr-xr-xr-x  3 root root   2048 Feb 14  2012 doc
dr-xr-xr-x  3 root root   2048 Feb 14  2012 install
dr-xr-xr-x  2 root root  16384 Feb 14  2012 isolinux
-r--r--r--  1 root root 166608 Feb 14  2012 md5sum.txt
dr-xr-xr-x  2 root root   2048 Feb 14  2012 pics
dr-xr-xr-x  3 root root   2048 Feb 14  2012 pool
dr-xr-xr-x  2 root root   2048 Feb 14  2012 preseed
lr-xr-xr-x  1 root root      1 Feb 14  2012 ubuntu -> .

><fs> ls /
libguestfs: error: ls: dispatch_incoming_message: unknown procedure number 6, set LIBGUESTFS_PATH to point to the matching libguestfs appliance directory
><fs> quit