Не могу установить пакеты

Хотел установить пакет wb-mqtt-mbgate.
После выполнения команды apt-get update && apt-get install wb-mqtt-mbgate выдает следующее:

Err http://security.debian.org wheezy/updates Release.gpg
  Could not resolve 'security.debian.org'
Err http://mirror.yandex.ru wheezy Release.gpg
  Could not resolve 'mirror.yandex.ru'
Err http://mirror.yandex.ru wheezy-updates Release.gpg
  Could not resolve 'mirror.yandex.ru'
Err http://http.debian.net wheezy-backports Release.gpg
  Could not resolve 'http.debian.net'
Err http://releases.contactless.ru wheezy Release.gpg
  Could not resolve 'releases.contactless.ru'
Reading package lists... Done
W: Failed to fetch http://mirror.yandex.ru/debian/dists/wheezy/Release.gpg  Coul                                                                                        d not resolve 'mirror.yandex.ru'

W: Failed to fetch http://mirror.yandex.ru/debian/dists/wheezy-updates/Release.g                                                                                        pg  Could not resolve 'mirror.yandex.ru'

W: Failed to fetch http://security.debian.org/dists/wheezy/updates/Release.gpg                                                                                          Could not resolve 'security.debian.org'

W: Failed to fetch http://releases.contactless.ru/dists/wheezy/Release.gpg  Coul                                                                                        d not resolve 'releases.contactless.ru'

W: Failed to fetch http://http.debian.net/debian/dists/wheezy-backports/Release.                                                                                        gpg  Could not resolve 'http.debian.net'

W: Some index files failed to download. They have been ignored, or old ones used                                                                                         instead.
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package wb-mqtt-mbgate

Добрый день!

А интернет точно есть? Вывод

ping google.com

покажите, пожалуйста.

Да с интернетом оказалось была проблемка)) но и теперь не все гладко:

root@wirenboard-AVZWUKUM:~# apt-get update && apt-get install wb-mqtt-mbgate
Get:1 http://mirror.yandex.ru wheezy Release.gpg [2339 B]
Get:2 http://mirror.yandex.ru wheezy-updates Release.gpg [2339 B]
Get:3 http://mirror.yandex.ru wheezy Release [2339 B]
Get:4 http://security.debian.org wheezy/updates Release.gpg [2339 B]
Get:5 http://releases.contactless.ru wheezy Release.gpg [2339 B]
Get:6 http://http.debian.net wheezy-backports Release.gpg [2339 B]
Get:7 http://mirror.yandex.ru wheezy-updates Release [2339 B]
Get:8 http://releases.contactless.ru wheezy Release [2339 B]
Get:9 http://security.debian.org wheezy/updates Release [2339 B]
Get:10 http://http.debian.net wheezy-backports Release [2339 B]
Ign http://mirror.yandex.ru wheezy Release
E: GPG error: http://mirror.yandex.ru wheezy Release: The following signatures were invalid: NODATA 1 NODATA 2

Я извиняюсь… Мне стоит ждать здесь ответа?

Добрый день!

Пожалуйста, выполните просто

apt-get install wb-mqtt-mbgate

и покажите вывод.