Как справиться с ошибкой при update apt-get?

Question

[bagos]

Сначала была ошибка no public key, добавил ключ
затем после sudo apt-get update ошибка
The following signatures were invalid: REVKEYSIG

загуглил ошибку - ничего не нашел

Comments

[mureevms]

Очень мало информации. Хоть показали бы список репов

[bagos]

Ubuntu запущен на виртуалке.
Давно не пользовался Ubuntu, вот понадобилось, хотел проапдейтить apt-get.

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