Preparing to replace procps 1:3.2.8-11ubuntu6 (using .../procps_1%3a3.2.8-11ubuntu6.3_amd64.deb) ...
invoke-rc.d: unknown initscript, /etc/init.d/procps not found.
dpkg: warning: subprocess old pre-removal script returned error exit status 100
dpkg - trying script from the new package instead ...
invoke-rc.d: unknown initscript, /etc/init.d/procps not found.
dpkg: error processing /var/cache/apt/archives/procps_1%3a3.2.8-11ubuntu6.3_amd64.deb (--unpack):
 subprocess new pre-removal script returned error exit status 100