Remove caches before creating the image

opennebula-images/freebsd-zfs-build-opennebula-image.sh

@@ -117,6 +117,7 @@ then
 		--currently-running "$RELEASE" \
 		--not-running-from-cron -F \
 		fetch install
+	rm -rf /mnt/var/db/freebsd-update/*
 fi
 
 env ASSUME_ALWAYS_YES=YES pkg -c /mnt bootstrap -f
@@ -127,6 +128,7 @@ fetch -m -o /mnt/one-context.txz "$ONE_CONTEXT_PKG_URL"
 # It would be useful to see if there is an alternative to OpenNebula without so many dependencies,
 # so we can run on FreeBSD base, and avoid breaking OpenNebula when the admin removes a dependency.
 env ASSUME_ALWAYS_YES=YES pkg -c /mnt install sudo bash curl base64 ruby open-vm-tools-nox11 gawk virt-what one-context.txz
+env ASSUME_ALWAYS_YES=YES pkg -c /mnt clean --all
 rm /mnt/one-context.txz
 
 cleanup