A follow up that might offer a few clues as to what's happening

ioctl: LOOP_CLR_FD: Device or resource busy
mount: you must specify the filesystem type
/root/.zAppRun: line 121: error: command not found
umount: /mnt/app/1: not mounted

this is the message I'm getting when I try and install Pymusique on Kanotix 2005-02.