Re: stuck on 7.7 and unable to upgrade :(

[Stephen Allen <marathon.durandal@gmail.com>]

On Tue, Sep 29, 2015 at 05:31:29PM +0300, Roman wrote:
> Hei guys,
> 
> Seems like I need your help.
> Can't go much more further...
> 
> Reading package lists... Done
> W: There is no public key available for the following key IDs:
> 7638D0442B90D010
> W: There is no public key available for the following key IDs:
> 9D6D8F6BC857C906
> W: There is no public key available for the following key IDs:
> 7638D0442B90D010
> 
What repository are you using? Try another one and see if it is a stale
archive.
>