  In the first part of this work, we establish the existence and uniqueness of
a local mild solution to the deterministic convective Brinkman-Forchheimer
(CBF) equations defined on the whole space, by using properties of the heat
semigroup and fixed point arguments based on an iterative technique. The second
part is devoted for establishing the existence and uniqueness of a pathwise
mild solution upto a random time to the stochastic CBF equations perturbed by
L\'evy noise by exploiting the contraction mapping principle. We also discuss
the local solvability of the stochastic CBF equations subjected to fractional
Brownian noise.
