Configuring the slave nodes is actually the same as configuring the master node, except that we do not need a Samba server on it. Instead, we have to configure the automount to mount the share of the master node. Also, we have to modify the network configuration.
The slave nodes will not be booted from external microSD cards. Instead, the operating system will be booted from internal eMMC memory. To install Ubuntu into the internal eMMC, you can create an installation card exactly as described for the master node. The only difference is that your memory card must match the internal eMMC memory. Let's assume that you have the old BBB version with 2 GB internal memory. Then, you need a 2 GB installation image that is already provided with this book. On your host environment, copy the decompressed .img image file onto the microSD card by issuing the same command as the one described for the master node:
sudo...