I frequently receive errors as follows while running apt-get update
:
[...]
gpg: keyblock resource `/etc/apt/trusted.gpg.d/pdfmod-team-ppa.gpg': resource limit
gpg: keyblock resource `/etc/apt/trusted.gpg.d/rael-gc-scudcloud.gpg': resource limit
gpg: keyblock resource `/etc/apt/trusted.gpg.d/voldyman-markmywords.gpg': resource limit
The above keys are just examples and not limited to those programs. It occurs generically with all software that I added from a PPA.
add-apt-repository -y ppa:<ppa-name>
. @LewisGoddard I found another solution suggesting to use launchpad-getkeys. Should I add it below as an answer myself? – orschiro Jul 2 '15 at 6:09