linux-user-chroot-dbg software package provides setuid helper for making bind mounts and chrooting (debug files), you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install linux-user-chroot-dbg
linux-user-chroot-dbg is installed in your system.
Make ensure the linux-user-chroot-dbg package were installed using the commands given below,
$ sudo dpkg-query -l | grep linux-user-chroot-dbg *
You will get with linux-user-chroot-dbg package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Debug packages |
| Package | linux-user-chroot-dbg |
| Version | 2013.1-2 |
| Description | setuid helper for making bind mounts and chrooting (debug files) |
| Sub Section | debug |