On Thu, Oct 26, 2017 at 11:50:05AM +0000, Joerg Desch wrote: > I'm still running Debian 8 on all of my systems. Since it is time to > switch to Debian 9, I've tried to have a first look at it. So I've > installed the nonfree DVD-Image 9.2 within a VirtualBox container. All > went fine, until I've tried to update the APT database. > > Both, apt and Synaptics updates fails. In both cases the error reports, > that /etc/apt/trusted.gpg is not accessible by user "_apt". > > The recommendation I've found was to delete trusted.gpg. > > OK, this was a workaround for using apt. Both update and upgrade works > without errors. Trying Synaptics leads to the previous behavior. The file > trusted.gpg appears again and with this file, the error returns. > https://www.debian.org/releases/stable/amd64/release-notes/ch-information.en.html#apt-unpriv-acquire > > By the way... Why is the VirtualBox Guest Utils package not available in > the official repositories? > https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=794466
However, there is now a backport: https://packages.debian.org/source/stretch-backports/virtualbox Regards, -Roberto -- Roberto C. Sánchez