apt-get was having problems with more and more package, not only ssl-cert, but also mysql-server a.o.
Eventually, the problem was traced to /usr/sbin not being in $PATH:
Scripts such as '/var/lib/dpkg/info/mysql-server-5.5.prerm' (line 10) do "invoke-rc.d mysql stop || exit $?" without specifying the full path...
apt-get was having problems with more and more package, not only ssl-cert, but also mysql-server a.o.
Eventually, the problem was traced to /usr/sbin not being in $PATH:
Scripts such as '/var/lib/ dpkg/info/ mysql-server- 5.5.prerm' (line 10) do "invoke-rc.d mysql stop || exit $?" without specifying the full path...