Update system after extracting rootfs

Author: am11

Makefile

@@ -39,6 +39,10 @@ rootfs: base.tar.xz
 	@echo -e '\e[1;31mBuilding rootfs...\e[m'
 	mkdir rootfs
 	sudo tar -xpf base.tar.xz -C rootfs
+	sudo cp -f /etc/resolv.conf rootfs/etc/resolv.conf
+	sudo chroot rootfs /sbin/xbps-install --sync --update --yes
+	sudo rm -rf `sudo find rootfs/var/cache/xbps/ -type f`
+	sudo rm rootfs/etc/resolv.conf
 	sudo chmod +x rootfs
 
 base.tar.xz: