Hello fabio,
Yes, wget is supported by yocto, I think your miss a configuration in your host
In order start the baking we need to make sure the environment setup ready. Need to install few packages initially for the building process.
sudo apt-get install gawk wget git-core diffstat unzip texinfo gcc-multilib \
build-essential chrpath socat cpio python python3 python3-pip python3-pexpect \
xz-utils debianutils iputils-ping python3-git python3-jinja2 libegl1-mesa libsdl1.2-dev \
xterm locales
You can view the yocto user guide in your BSP documentation.
Regards
