Looks like a circular dependency that has nothing to do with ca-certificates:
dpkg: cycle found while processing triggers:
chain of packages whose triggers are or may be responsible:
gconf2 -> gconf2
packages' pending triggers which are or may be unresolvable:
ca-certificates: update-ca-certificates
ca-certificates postinst is not run because it waits for the other packages to be taken care of.
Looks like a circular dependency that has nothing to do with ca-certificates:
dpkg: cycle found while processing triggers: ca-certificates
chain of packages whose triggers are or may be responsible:
gconf2 -> gconf2
packages' pending triggers which are or may be unresolvable:
ca-certificates: update-
ca-certificates postinst is not run because it waits for the other packages to be taken care of.