grub-pc software package provides GRand Unified Bootloader, version 2 (PC/BIOS version), you can install in your Debian 7 (Wheezy) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install grub-pc
grub-pc is installed in your system.
Make ensure the grub-pc package were installed using the commands given below,
$ sudo dpkg-query -l | grep grub-pc *
You will get with grub-pc package name, version, architecture and description in a table
| Distro | Debian 7 wheezy |
| Section | Administration Utilities |
| Package | grub-pc |
| Version | 1.99-27+deb7u3 |
| Description | GRand Unified Bootloader, version 2 (PC/BIOS version) |
| Sub Section | Admin |