Hello I used the wikipage to address the problem where loop module does not load. Here is the relevant page. === Failed to set up a loop device === If you get a message "Failed to set up a loop device" when trying to create/mount a TrueCrypt volume, it may be because you updated your kernel recently without rebooting. Rebooting should fix this error. Otherwise, check if ''loop'' has been loaded as kernel module: $ lsmod | grep loop If not listed, retry the TrueCrypt command after {{ic|modprobe loop}}. Should it work, consider to add ''loop'' to the modules in {{ic|/etc/modules-load.d}}: # tee /etc/modules-load.d/truecrypt.conf <<< "loop" {{Note|As of udev 181-5, the loop device module is no longer auto-loaded, and the procedure described here is necessary.}} I am using a stock kernel. I tried to use sudo to run truecrypt and it failed to setup a loop device. I did a check of lsmod output and loop was not loaded after I made the truecrypt.conf change. After I modprobe loop by hand truecrypt would work and the encrypted drive would be mounted on /mnt/truecrypt1. Is there something which needs to edited to the wiki page regarding truecrypt.conf? It does not seem to work, and it seems that manually loading the module is required. -- John F. Davis 6 Kandes Court Durham, NC 27713 919-888-8358 独树一帜