On Sun, May 20, 2012 at 11:53:31AM -0400, Gary Duzan wrote: > # mount -t cd9660 -o rump /usr/home/gary/g4u-2.2.iso /mnt That draws a similar error for me: rump_cd9660: puffs_daemon: Invalid argument rump_cd9660: mount: Invalid argument Mayuresh