To use the loop device, you need the losetup utility, found in the
util-linux package, see
- <ftp://ftp.kernel.org/pub/linux/utils/util-linux/>.
+ <https://www.kernel.org/pub/linux/utils/util-linux/>.
The loop device driver can also be used to "hide" a file system in
a disk partition, floppy, or regular file, either using encryption