I got some tips, but unfortunately nothing helped directly. At least I can 
give more information now:

I checked for the keys in /var/db/xbps/keys where everything seems to be 
alright. An output of xbps-install with debug and verbose flags can be read 
at this URL <http://koehr.in/xbps.output.txt>.

Any more ideas are appreciated.


Am Samstag, 12. September 2015 14:06:44 UTC+2 schrieb kør:
>
> Hi, I manually installed Void following the documentation for installing 
> on an UEFI system with root in encrypted LVM 
> <https://github.com/voidlinux/documentation/wiki/Install-LVM-LUKS-on-UEFI-GPT>. 
> Now after booting the system and syncing the repository data, I cannot 
> install anything. Every attempt failes with
>
> xbps-install: <packet>-<version>: the RSA signature is not valid!
>
> Do I have to sync some keys or so?
>
> In case it is important, this is the output of `xbps-query -vL`:
>
>  4661 http://muslrepo.voidlinux.eu/current (RSA signed)
>       Signed-by: Void Linux
>       4096 3d:b9:c0:50:41:a7:68:4c:2e:2c:a9:a2:5a:04:b7:3f
>
> Thanks alot!
>
>
>
> PS: I posted this already today but didn't find it afterwards. It might be 
> doubled now, sorry for that.
>